W3LC - World Wide Web Learners Consortium

How to set new Github PTA when old expired

2026-03-10T13:04:00.006+05:30

I ran into a situation. My Personal Access Token on Git expired and I wanted to generate and set in my git terminal locally. The problem was that my git was still taking old PTA from command line. I kept on asking for old PTA which was now expired. Let me walk you through what was done next.

But first - Let's learn to set a new Personal Access Token (PAT) on your Mac, you need to first generate it on the GitHub website and then enter it into your terminal when prompted.

Step 1: Generate a New PAT on GitHub

Log into GitHub.com and go to your Settings (click your profile photo in the top right).
On the left sidebar, scroll to the bottom and click Developer settings.
Click Personal access tokens -> Tokens (classic).
Click Generate new token (classic).
Note: Give it a name (e.g., "MacBook Pro").
Expiration: Choose a duration (or "No expiration" if you prefer).
Scopes: Select the repo checkbox (this is required for push/pull access).
Click Generate token and copy the token immediately. You will not be able to see it again.

To update your Personal Access Token (PAT) because Git is still using an old, expired one, you must clear the existing credentials from your system's storage so Git can prompt you for the new one.

1. Clear Old Credentials (Required)

Choose the steps for your specific Operating System:

Windows:
1. Open the Start Menu, search for "Credential Manager", and open it.
2. Select Windows Credentials.
3. Find entries for git:https://github.com and click Remove.
macOS:
1. Open Keychain Access (use Command + Space and type it).
2. Search for github.com.
3. Right-click the entry and select Delete "github.com".
Linux (Command Line):

Run: git config --global --unset credential.helper.
If you used the "store" helper, delete the credentials file: rm ~/.git-credentials

**But sometimes this step does not work. For that use following:

git remote set-url origin https://github.com

Step 2: Set the Token in your Terminal

Since you already cleared your Keychain earlier, Git will now ask you for the new token the next time you try to connect.

In your terminal, run:
git pull origin main
Username: Type your GitHub username and press Enter.
Password: Paste your new PAT and press Enter.

Note: The terminal will not show any dots or characters while you paste. This is normal security behavior.

But in my case I was getting an error - git pull origin main says fatal: repository 'https://github.com/' not found

Run this command to fix it (replace your-username and your-repo-name with your actual names):

bash

git remote set-url origin https://github.com

Use code with caution.

Now, try to pull again:

bash

git pull origin main

Use code with caution.

What will happen next:

It will ask for your Username: Type it and hit Enter.
It will ask for your Password: Paste your new PAT here and hit Enter. (You won't see any characters appear while pasting).

Why it says "Not Found":
In your previous steps, the remote URL accidentally got set to https://github.com/. GitHub doesn't see any code there, so it tells you the "repository" doesn't exist. Pointing it back to the full URL fixes this. eg: git remote set-url origin https://github.com/Anwar/Artudio

Permissions Required for Your PAT

Depending on which type of token you created, ensure these settings are enabled:

Fine-grained Token (Recommended):

Repository access: Select "Only select repositories" and choose your specific repository (e.g., Anwar-Faiz/artudio), or select "All repositories".
Permissions: Under "Repository permissions", find "Contents" and change the access to Read and Write.
I also give Pull Request Read and Write
Metadata: as Read only

How To undo a git add operation (unstage files)

2026-02-28T03:21:00.001+05:30

To undo a git add operation (unstage files), the recommended command is git restore --staged. This moves changes from the staging area back to the working directory without losing any modifications.

Recommended Method: git restore --staged

This command is the preferred method in modern Git (versions 2.23+) because it is more intuitive and safer for this specific task.

Unstage a specific file:
bash
git restore --staged <filename>
(Replace <filename> with the actual name of your file, e.g., git restore --staged index.html).
Unstage all files:
bash
git restore --staged .

Alternative Method: git reset

Before git restore was introduced, the git reset command was used to unstage files, and it still works.

Unstage a specific file:
bash
git reset <filename>
Unstage all files:
bash
git reset

How To change a Git branch name

2026-02-28T03:18:00.006+05:30

To change a Git branch name, you first rename the branch locally using git branch -m and then update the remote repository.

Renaming a Local Branch

You can rename a local branch in one of two ways:

If you are on the branch you want to rename:
bash
git branch -m <new-name>
For example: git branch -m feature/new-login.
If you are on a different branch:
bash
git branch -m <old-name> <new-name>
For example: git branch -m feature/old-login feature/new-login.

Renaming a Remote Branch

Renaming a branch that has already been pushed to a remote repository (like GitHub or GitLab) requires a few extra steps and team coordination.

Rename your local branch using one of the methods above.
Push the newly named local branch to the remote repository. This effectively creates a new branch on the remote.
bash
git push origin -u <new-name>
The -u (or --set-upstream) flag is important as it links your local branch to the new remote branch.
Delete the old branch from the remote repository to avoid confusion:
bash
git push origin --delete <old-name>
Update settings on your Git host (e.g., GitHub, GitLab, Bitbucket) if the renamed branch was the default branch or if there were branch protection rules, CI/CD pipelines, or open pull requests associated with the old name.

My Code Disappeared After Switching Branches — Here’s What Actually Happened

2026-02-16T17:45:00.003+05:30

Yesterday I panicked.

I switched from a feature branch back to main in Git…

…and my fix was gone.

The file didn’t show the changes.
The bug fix disappeared.
I thought I lost my work.

If this has ever happened to you — relax.

Your code probably isn’t lost.

😰 What Actually Happened?

I had:

Created a branch: feature-x
Fixed a bug
Committed the fix
Switched back to main

When I checked the file in main, the fix wasn’t there.

Why?

Because Git branches are independent timelines.

My fix existed.
Just not in main.

🧠 The Important Concept

Think of branches like parallel universes.

When you commit inside feature-x, that commit belongs to that branch.

Switching to main doesn’t magically bring those commits with you.

You must merge them.

✅ How I Fixed It

I ran:


git checkout main
git merge feature-x

Boom.

The changes appeared.

Then I pushed to GitHub:


git push origin main

Problem solved.

🔎 How To Debug If This Happens To You

Here are the commands that save you:

1️⃣ Check where you are


git branch

2️⃣ See commits across branches


git log --all --oneline --graph

3️⃣ Compare branches


git log main..feature-x

4️⃣ Recover “lost” commits


git reflog

Nothing is usually lost.
It’s just on another branch.

🚀 Lesson for Developers

Before panicking:

Check your branch
Check your commits
Understand Git timelines
Merge properly
Push if needed

Git rarely deletes your work.
It just organizes it.

💡 Final Thought

The biggest Git mistake is not a wrong command.

It’s not understanding branches.

Once you understand that each branch is a separate history —
Git becomes predictable.

And panic disappears.

how to check apache server and php installed or not on mac

2026-02-15T14:32:00.001+05:30

macOS comes with Apache pre-installed, though it may not be enabled by default. You can check its installation and status using the Terminal with the following commands:

Check the Apache version: Running the apachectl -v command will display the installed Apache version and build date, which confirms the software is present.
bash
apachectl -v
Check if the Apache service is running: Use sudo apachectl status to see the current status of the Apache service. You can also use the ps aux | grep httpd command to list all running processes related to Apache's executable (httpd).
bash
sudo apachectl status # or ps aux | grep httpd
Verify the installation via web browser: If the service is running, open a web browser and navigate to http://localhost. If you see the message "It works!", then Apache is installed and serving web pages correctly.
Locate the Apache binary: The which command can show the location of the Apache executable in your system's PATH, which is typically /usr/sbin/httpd for the default macOS installation.
bash
which httpd # or whereis httpd

If these commands do not work, Apache may not be correctly configured or installed on your system. In such cases, you might consider installing it via a package manager like Homebrew.

To run an Apache and PHP server on a Mac, you can use the built-in server (in older macOS versions), install a fresh version using Homebrew, or use a pre-packaged solution like MAMP.

Method 1: Using the Built-in Apache (Older macOS)

Older versions of macOS came with Apache pre-installed, though it required manual activation and PHP was removed from the default installation in macOS Monterey.

Start Apache: Open the Terminal app (search in Spotlight) and run:
bash
sudo apachectl start
You will be prompted for your system password.
Verify Apache: Open a web browser and navigate to http://localhost/. You should see the message "It works!".
Enable PHP: If your macOS version has a built-in PHP module, you would typically edit the Apache configuration file using a text editor like nano:
bash
sudo nano /etc/apache2/httpd.conf
Inside the editor, find the line that loads the PHP module (e.g., #LoadModule php7_module ... or #LoadModule php_module ...) and remove the # character from the beginning to uncomment it. Save the file (Ctrl+X, then Y, then Enter) and restart Apache:
bash
sudo apachectl restart

Method 2: Using Homebrew (Recommended for Modern macOS)

For the latest macOS versions, installing Apache and PHP via Homebrew is recommended as it provides more control over versions and avoids conflicts with system updates.

Install Homebrew: Follow the instructions on the official Homebrew website to install it.
Install Apache and PHP: In the terminal, run:
bash
brew install httpd php
This installs both the Apache server (httpd) and the latest stable PHP version.
Configure and Start: Follow the post-installation instructions provided by Homebrew in the terminal output to configure and start the services. Configuration files are typically located in /opt/homebrew/etc/httpd/ (on Apple Silicon Macs).
Verification: Access http://localhost:8080 (or port 80, depending on your configuration) in a browser to verify Apache is running.

Top 5 Blogposts / patterns of all times on W3LC - A true analysis for from a Technology Blogger

2026-02-11T17:08:00.001+05:30

Recently I sat to analyze what has worked well for my blog and what topics were the most helpful based on the number of visits per post.

Following 5 clearly stood out as the Top 5 patterns of all times.

🔥 1. Clear #1 Winner Pattern: “Quick Linux / System Fix”

Topic: Checking File system / Directory size in Linux (df -k, du -sh)

Visitors - 301K visitors

Why it exploded:

High search intent (“I’m stuck NOW”)
Very specific command
Short, practical, copy-paste friendly
No philosophy, no fluff

👉 This is classic evergreen DevOps traffic

URL: https://www.w3lc.com/2013/05/checking-file-system-directory-size-in.html

🔥 2. Windows + Enterprise IT Pain

Topic: RDP full screen MSTSC and Disable RDP wallpaper via Group Policy

Visitors -

RDP full screen MSTSC - 81K visitors

Disable RDP wallpaper via Group Policy - 17K visitors

Why these work:

Corporate IT users
Windows admins Google exact phrasing
Very few blogs explain this simply

👉 Enterprise IT problems = loyal Google traffic

URLs:

https://www.w3lc.com/2014/04/rdp-in-full-screen-mode-remote-desktop.html

https://www.w3lc.com/2012/09/disable-remote-host-desktop-wallpaper.html

🔥 3. Errors & Weird Messages = Hidden Gold

Visitors -

Error 452 file larger than ulimit - 30K visitors

Git cherry-pick bad object - 16K visitors

Perl XML/Simple.pm @INC - 7K visitors

Why they work:

Exact error text in title
User pastes error into Google
The blog becomes “the savior page”

👉 Error-first titles are the silent traffic engine

URLs:

https://www.w3lc.com/2011/11/error-452-error-writingfile-larger-than.html

https://www.w3lc.com/2017/03/fatal-bad-object-error-in-git-cherry.html

https://www.w3lc.com/2012/03/cant-locate-xmlsimplepm-inc-inc-in-perl.html

⚠️ 4. General Information and novelty of the Blog!

Visitors -

Definition of Smart Devices – 62K

Why W3LC blog – 25k

Why it was read by people:

Informational / opinion-based
Less urgency
Not a “problem to fix”

👉 These are good for branding, not aimed for traffic spikes. Yet it drew!

URLs:

https://www.w3lc.com/2018/07/definition-of-smart-devices-by-w3lc.html

https://www.w3lc.com/2010/05/why-new-it-discussions.html

LAMP Stack Development on Mac OS

2026-02-11T12:25:00.005+05:30

Testing a LAMP (Linux, Apache, MySQL, PHP) server on a Mac involves setting up a local development environment that mimics a Linux web server. While Mac runs macOS, you can use built-in tools (Apache/PHP), install packages via Homebrew, or use pre-packaged stacks like MAMP/XAMPP to simulate the environment.

Here is a guide to setting up and testing a LAMP environment on a Mac:

1. The Easiest Way: Using MAMP or XAMPP

For quick testing without command-line configuration, MAMP or XAMPP are recommended.

MAMP: Download, drag to Applications, and click "Start Servers". It provides a control panel to manage Apache and MySQL.
XAMPP: Similar to MAMP, install the macOS version, open the manager, and ensure both Apache and MySQL are running.
Testing: Place your PHP files in the htdocs folder (for XAMPP) or htdocs within the MAMP folder, then access them via http://localhost/yourfile.php.

2. The Native Way: Using Built-in Apache + Homebrew

macOS comes with Apache, but you will need to install MySQL and ensure PHP is configured.

Start Apache: Open Terminal and type: sudo apachectl start. Verify by navigating to http://localhost in a browser, which should show "It works!".
Install/Upgrade PHP & MySQL: Use Homebrew to install the latest versions: brew install php and brew install mysql.

brew install httpd php --> Best way to install apache server and php at once.

Configure Apache: Edit the Apache configuration file to enable PHP and set the document root (usually /Library/WebServer/Documents or a custom ~/Sites folder).
Start MySQL: Use brew services start mysql.

3. Testing the LAMP Stack

To confirm your server is working properly, create a testing file to check PHP and Database connectivity.

Test PHP Integration:

Create a file named info.php in your document root folder (e.g., /Library/WebServer/Documents/ or ~/Sites/).
Add the following code:
php
<?php phpinfo(); ?>
Open your browser and navigate to http://localhost/info.php. A page displaying PHP configuration details indicates success.
If you want to add any files or folders you can use this directory. Common Commands to change the access:
- Full Access (Recursive): chmod -R 777 foldername (Grants read/write/execute to everyone).
- Standard Access (Recursive): chmod -R 755 foldername (Owner can edit; others can only read/execute).
- Specific User (Recursive): sudo chmod -R u+w foldername (Adds write permission for the owner).

Test MySQL Connectivity:

Create a file named dbtest.php in your document root.

Add the following code to test the connection (update credentials accordingly):

php

<?php
$conn = new mysqli("localhost", "root", "your_password");
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}
echo "Connected to MySQL database successfully!";
?>

Navigate to http://localhost/dbtest.php.

4. Important Tips

Secure MySQL: Run sudo mysql_secure_installation to set up a root password and remove insecure default settings.
Permissions: If you are using ~/Sites, you may need to adjust folder permissions so Apache can read the files (chmod).
Alternatives: For more complex, closer-to-production testing, consider using Docker for a containerized LAMP stack.

After this, i ran into an issue when i actually started executing the code. I was wondering How

to set password or create new database and users after the default mysql installation.

1. Set or Change the Root Password

If you installed MySQL via Homebrew, the root user often has no password by default.

Secure Installation Method: Run the following command in Terminal and follow the prompts to set a password and remove insecure default settings:
bash
```
mysql_secure_installation
```
Use code with caution.
Direct Command Method: If you are already logged in to the MySQL shell, use this command:
sql
```
ALTER USER 'root'@'localhost' IDENTIFIED BY 'YourNewPassword';
FLUSH PRIVILEGES;
```
Use code with caution.

2. Create a New Database

sql

CREATE DATABASE my_new_database;

Use code with caution.

3. Create a New User and Grant Privileges

It is safer to use a dedicated user for your applications rather than the root account.

Create the User: This command creates a user that can only connect from your Mac (localhost).
sql
```
CREATE USER 'web_user'@'localhost' IDENTIFIED BY 'SecurePassword123';
```
Use code with caution.
Grant Permissions: Give this user full access to your new database.
sql
```
GRANT ALL PRIVILEGES ON my_new_database.* TO 'web_user'@'localhost';
```
Use code with caution.
Apply Changes: Always run this to ensure the new permissions take effect immediately.
sql
```
 
```
Use code with caution.

4. Verify the New User

Exit the shell (exit;) and try logging in with your new credentials:

bash

mysql -u web_user -p

Use code with caution.

Once logged in, run SHOW DATABASES; to confirm you can see the database you created.

After this, another logical point where i felt little lost was how to run the first set of mysql instructions. In my case I had a .sql file and i wanted to run that:

To run a SQL file to create tables on your Mac after installing MySQL, you typically use the mysql command-line client via your Terminal application.

Using the Command-Line Interface (CLI)

This is the most common method:

Open Terminal: Launch the Terminal application on your Mac. You can find it using Spotlight search (Cmd + Space) or in Applications > Utilities.
Navigate (Optional but Recommended): Use the cd (change directory) command in Terminal to navigate to the folder where your .sql file is located. This makes typing the file path easier. For example:
bash
cd ~/Documents/MySQL_Projects
Execute the SQL file: Use the mysql command with the following syntax:
bash
mysql -u [username] -p [database_name] < [file_name].sql
- [username]: Replace with your MySQL username (often root by default).
- [database_name]: Replace with the name of the database where you want the tables to be created. This database must already exist.
- [file_name].sql: Replace with the actual name of your SQL file.
Enter Password: After running the command, you will be prompted to enter the password for the specified user. Type it in (characters won't appear on the screen for security) and press Enter.

The SQL commands within the file will then execute sequentially to create your tables and database structures.

Alternative Method: Using the MySQL Client Interactively

Log into MySQL: In Terminal, enter the MySQL shell first:
bash
mysql -u [username] -p
Enter your password when prompted.
Select a Database: Once you are in the mysql> prompt, select the target database:
sql
USE [database_name];
Source the SQL file: Use the SOURCE command to run the file:
sql
SOURCE /path/to/your/file.sql;
(Replace /path/to/your/file.sql with the absolute path to your SQL file).
Exit: Type exit; and press Enter to leave the MySQL shell.

Troubleshooting

"command not found" error: If your Mac doesn't recognize the mysql command, you need to add the MySQL installation directory to your system's PATH variable.
Database doesn't exist: The database you specify in the command must exist. If not, log into MySQL first and use CREATE DATABASE [database_name]; to create it manually.

Primender Sequence: Numbers that are prime or end in a prime number (of any length)

2025-06-09T15:25:00.008+05:30

Primender Sequence

The Primender Sequence is a novel mathematical construct that includes numbers which are prime, or which end with a prime number (of any length). In simpler terms, a number qualifies as a Primender if it:

Is a prime number itself, or
Has at least one suffix (ending segment) that is a prime number.

For example:

2, 3, 5, 7 → Prime numbers → ✅
12 → Ends in 2 (a prime) → ✅
12345699 → Ends with suffix 45699 (a prime) → ✅

Properties

The sequence is infinite.
It is densely populated, with the maximum delta (difference) between consecutive terms never exceeding 5.
All prime numbers are included in the Primender sequence.
The rule-based structure offers a symbolic and computational framework to analyze prime distribution, modular arithmetic, and AI inference patterns.

Applications

This sequence opens avenues for:

Symbolic reasoning tasks
Cryptographic keyspace exploration
Pseudo-random number generation
Benchmarking interpretable AI systems and LLM inference consistency

Sample Python Implementation

from sympy import isprime

def is_primender(n):
    s = str(n)
    return any(isprime(int(s[i:])) for i in range(len(s)))

# Generate first 1000 Primender numbers
primender_numbers = []
n = 1

while len(primender_numbers) < 1000:
    if is_primender(n):
        primender_numbers.append(n)
    n += 1

print("First 1000 Primender numbers:", primender_numbers)

Sample Set:

The Primender sequence includes numbers that ends with a prime number. In other words, numbers which are primes or have at least one prime suffix. The sequence is infinite, densely populated, and maintains a maximum delta of 5 between consecutive terms. Since all primes are part of this sequence, it offers a novel lens for prime number analysis.

Some examples:

2, 3, 5, 7, 11, 12, 13, 15, 17, 19, 22, 23, 25, 27, 29, 31, 32, 33, 35, 37, 41, 42, 43, 45, 47, 52, 53, 55, 57, 59, 61, 62, 63, 65, 67, 71, 72, 73, 75, 77, 79, 82, 83.

A beautiful observation:

The Primender sequence exhibits a dense numerical structure, with most terms appearing in close proximity. This is largely due to the rule favoring numbers that either are prime or end in digits like 2, 3, 5, or 7—leading to frequent inclusion of nearby integers. The combination of traditional primes and numbers with prime-ending digits (evaluated over the last 2 or 3 digits) creates a consistently growing, non-terminating sequence. As a result, the Primender series is infinite by design. Notably, there are no observed instances where the gap between consecutive terms reaches 6 or more. This absence indicates that the selection mechanism inherently favors closely spaced numbers, and that a difference of 6 exceeds the permissible range defined by the sequence’s construction rules.

The reason no delta (difference between consecutive numbers) exceeds 5 in your sequence of selected numbers is due to the density and overlap of the selection rules. Here's a breakdown of why this happens:

🔁 1. High Frequency of Qualifying Numbers

The selection rules are generous and overlapping:

Primes are already fairly common, especially in lower ranges.
Last digit in {2, 3, 5, 7} occurs 4 out of every 10 numbers.
Last two or three digits being prime adds even more candidates.

This means that within any small window of 5–6 numbers, at least one number is almost always selected.

🔍 2. Overlapping Criteria

Many numbers satisfy multiple rules. For example:

A number like 113 is a prime, ends in 3, and its last two digits (13) are also prime.
This overlap increases the density of qualifying numbers.

📏 3. Mathematical Implication

If you imagine scanning every group of 6 consecutive numbers:

The chance that none of them satisfy any of the rules is extremely low.
Hence, the maximum gap (delta) between two selected numbers is capped at 5.

📈 4. Empirical Confirmation

In the analysis of:

1,000 numbers ✅
10,000 numbers ✅
1,000,000 numbers ✅

There were no deltas greater than 5, confirming this pattern holds even at large scales.

Mathematical Proof:

To mathematically prove that a delta (gap) of 6 or more cannot occur in your sequence, we can use a proof by contradiction based on the density of the selection rules. Here's a structured theoretical argument:

🧠 Assumption (for contradiction)

Assume there exists a gap of 6 or more between two consecutive selected numbers. That means there is a block of 5 consecutive numbers (say, $n + 1, n + 2, n + 3, n + 4, n + 5$ ) that do not satisfy any of the selection rules.

We will show that this is impossible.

📏 Selection Rules Recap

A number $x$ is selected if any of the following is true:

$x$ is prime.
$x m o d 10 \in {2, 3, 5, 7}$ .
$x m o d 100$ is prime.
$x m o d 1000$ is prime.

🔍 Key Observations

1. Last Digit Rule (mod 10)

In any 10 consecutive numbers, 4 will end in 2, 3, 5, or 7.
So in any block of 6 numbers, at least 2 or 3 will likely satisfy this rule.

2. Primes Are Dense

The prime number theorem tells us that the number of primes less than $n$ is approximately $\frac{n}{\ln n}$ .
For small $n$ , primes are very frequent. For example, between 1 and 1000, there are 168 primes.
So in any small interval (like 6 numbers), the chance of no primes is very low.

3. Modular Prime Rules (mod 100, mod 1000)

These rules increase the density of qualifying numbers even more.
For example, even if a number is not prime, if its last 2 or 3 digits form a prime, it qualifies.

🔄 Contradiction

If we assume a gap of 6, then none of the 5 numbers in between satisfy any of the rules. But:

At least 2 of them will end in 2, 3, 5, or 7.
At least 1 of them is likely to be prime.
At least 1 of them will have last 2 or 3 digits that are prime.

So at least one of the 5 numbers must be selected, contradicting the assumption of a gap of 6.

✅ Conclusion

Therefore, by contradiction, no delta greater than 5 can occur in the sequence.

Would you like to visualize this with a simulation or plot showing how often each rule is triggered in a small window?

References:

“Github repository for Primender,” GitHub, 2025. [Online]. Available: https://github.com/Anwar-Faiz/primender. [Accessed: Jun. 09, 2025].
“Primender Checker,” [Online]. Available: https://tools.anwarjamal.com/Primender
Mohd Anwar Jamal Faiz, Primender Sequence: A Novel Mathematical Construct for Testing Symbolic Inference and AI Reasoning, 2025 - https://arxiv.org/pdf/2506.10585
https://medium.com/@toughjamy/announcing-the-primender-sequence-now-in-oeis-as-a384735-7fcc743edcbb

@article{Faiz2025PrimenderSA, title={Primender Sequence: A Novel Mathematical Construct for Testing Symbolic Inference and AI Reasoning}, author={Mohd Anwar Jamal Faiz}, journal={ArXiv}, year={2025}, volume={abs/2506.10585}, url={https://api.semanticscholar.org/CorpusID:279318649} }

Python's F-String for String Interpolation and Formatting

2024-08-23T21:09:00.008+05:30

Interpolating Values and Objects in F-Strings

In latest python, F-strings make the string interpolation process intuitive, quick, and concise. The syntax is similar to what you used with .format(), but it’s less verbose. You only need to start your string literal with a lowercase or uppercase f and then embed your values, objects, or expressions in curly brackets at specific places:

>>> name = "Jane"
>>> age = 25
>>> f"Hello, {name}! You're {age} years old."
'Hello, Jane! You're 25 years old.'

Earlier in Python 3.6 we had the Modulo Operator, % for thsi purpose

The modulo operator (%) was the first tool for string interpolation and formatting in Python and has been in the language since the beginning. Here’s what using this operator looks like in practice:

>>> name = "Jane"
>>> "Hello, %s!" % name
'Hello, Jane!'

Or, see the next example

>>> name = "Jane"
>>> age = 25

>>> "Hello, %s! You're %s years old." % (name, age)
'Hello, Jane! You're 25 years old.'
Or, see the next example for decimal point formatting
>>> "Balance: $%.2f" % 5425.9292
'Balance: $5425.93'

How to fix rearrangement of display screen/spaces on Mac?

2024-08-22T09:25:00.007+05:30

Sometimes i get irritated when i see the arrangement of spaces or screen changes when i want to switch between screens on Mac. I always try to ask how do you prevent the macos from occasionally changing or resetting the display arrangement on its own upon waking up or a reboot?

The solution is simple:

Go to Apple > System Preferences >

Mission Control > un-check "Automatically rearrange spaces"

and "Displays have separate spaces"

Cheers :)

If you also want to understand How to fix Mission Control Not working on MAC OS then you can refer my earlier post from 2021 - https://www.w3lc.com/2021/08/how-to-fix-mission-control-not-working.html

Resolving 'Failed to Fetch' Errors in JavaScript

2024-08-20T12:36:00.005+05:30

The "TypeError: Failed to fetch" error is a common and often frustrating issue encountered when working with web applications. This error usually arises from problems with the Fetch API and can be caused by a variety of factors.

Common Reasons for "Failed to Fetch" Errors

1. Incorrect or Incomplete URL

- The URL used in the `fetch()` method might be incorrect or incomplete.

- Make sure the URL includes the correct protocol (https:// or http://) and that the path is accurate.

2. CORS (Cross-Origin Resource Sharing) Issues

- The server might not be returning the correct CORS headers. If you're unfamiliar with CORS, you can refer to the MDN documentation.

- Ensure the server is configured with the appropriate `Access-Control-Allow-*` headers.

3. Incorrect Fetch Configuration

- There could be errors in the HTTP method or headers passed to the `fetch()` method.

- Double-check that the configuration, including the URL, HTTP method, and headers, is correct.

4. Browser Extensions

Occasionally, browser extensions can trigger these errors by interfering with API calls or altering the responses.

Steps to Debug

1. Verify the URL

- Ensure the URL in the `fetch()` method is correct and complete.

- Check that the protocol, path, and HTTP method are accurate.

2. Inspect the Browser Console

- The browser console can provide valuable insights into failed API calls.

- Look for errors related to CORS or other network issues.

3. Check CORS Headers

- Confirm that the server is sending the correct CORS headers.

- Use the browser’s Network tab to review the headers of the failed requests.

4. Experiment with Different Configurations

- Try different `fetch()` configurations to pinpoint the issue.

- Adjust methods, headers, and URL formats as needed.

5. Consider Using a Proxy

- If modifying server headers isn’t possible, consider using a proxy to bypass CORS restrictions.

- Implement proxies with tools like Express or `cors-anywhere` in Node.js.

Enable CORS on a resource using the AWS API Gateway console

2024-08-16T22:02:00.005+05:30

Sometimes while hitting an API gateway you get error suggesting No 'Access-Control-Allow-Origin' header is present on the requested resource. If an opaque response serves your needs, set the request's mode to 'no-cors' to fetch the resource with CORS disabled.

In such a case, sometimes people suggest to set the request mode to 'no-cors' like so:

fetch(url, {

mode: "no-cors",

...

})

But if you're getting CORS issues this is not the solution. If the API endpoint is something that you control, then you have to fix those CORS issue there. If the API endpoint is not something that you control, then you have to proxy your request through a server that does have CORS enabled.

You need to remove the mode: 'no-cors' setting from your request. Setting no-cors mode is exactly the cause of the problem you’re having. A no-cors request makes the response type opaque. The log snippet in the question shows that. Opaque means your frontend JavaScript code can’t see the response body or headers.

With no-cors — JavaScript may not access any properties of the resulting Response

So the effect of setting no-cors mode is essentially to tell browsers, “Don’t let frontend JavaScript code access the response body or headers under any circumstances.”

People sometimes try setting no-cors mode when a response doesn’t include the Access-Control-Allow-Origin response header or else because the request is one that triggers a CORS preflight, and so your browser does an OPTIONS preflight. But using no-cors mode isn’t a solution to those problems. The solution is either to:

configure the server to which you’re making the request such that it sends the Access-Control-Allow-Origin response header, and such that it handles OPTIONS requests
or set up a CORS proxy using code from https://github.com/Rob--W/cors-anywhere/ or such; see the How to use a CORS proxy to get around “No Access-Control-Allow-Origin header” problems section of the answer at No 'Access-Control-Allow-Origin' header is present on the requested resource—when trying to get data from a REST API
Temporarily you can also use Chrome extension of Enabling CORS. But it is for debugging phase only.

However, it is evident that sometimes you clearly need to Enable CORS on a resource. You can do this using the API Gateway console.

To enable CORS support on a REST API resource

Sign in to the API Gateway console at https://console.aws.amazon.com/apigateway
Choose an API.
Choose a resource under Resources.
In the Resource details section, choose Enable CORS.

Next Steps/settings In the Enable CORS box:

(Optional) If you created a custom gateway response and want to enable CORS support for a response, select a gateway response.
Select each method to enable CORS support. The OPTION method must have CORS enabled.
If you enable CORS support for an ANY method, CORS is enabled for all methods.
In the Access-Control-Allow-Headers input field, enter a static string of a comma-separated list of headers that the client must submit in the actual request of the resource. Use the console-provided header list of 'Content-Type,X-Amz-Date,Authorization,X-Api-Key,X-Amz-Security-Token' or specify your own headers.
Use the console-provided value of '*' as the Access-Control-Allow-Origin header value to allow access requests from all origins, or specify origins to be permitted to access the resource.
Choose Save.

After this, deploy the API again and see the fun in next call!

Some simple dev setups on Mac developer machine

2024-08-15T00:12:00.006+05:30

Install HomeBrew on Mac:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

==> Next steps:

- Run these two commands in your terminal to add Homebrew to your PATH:

(echo; echo 'eval "$(/opt/homebrew/bin/brew shellenv)"') >> /Users/mfaiz/.zprofile

eval "$(/opt/homebrew/bin/brew shellenv)"

- Run brew help to get started

- Further documentation:

Install NodeJs:

brew install node@20

If you need to have node@20 first in your PATH, run:

echo 'export PATH="/opt/homebrew/opt/node@20/bin:$PATH"' >> ~/.zshrc

For compilers to find node@20 you may need to set:

export LDFLAGS="-L/opt/homebrew/opt/node@20/lib"

export CPPFLAGS="-I/opt/homebrew/opt/node@20/include"

# verifies the right Node.js version is in the environment

node -v

# verifies the right npm version is in the environment

npm -v

In case node command etc not working then link it using following command:

% brew link node@20

Create React App:

npx create-react-app little-billi

cd my-app

npm start

If you've previously installed create-react-app globally via npm install -g create-react-app, we recommend you uninstall the package using npm uninstall -g create-react-app or yarn global remove create-react-app to ensure that npx always uses the latest version.

When npm starts the server, Then open http://localhost:3000/ to see your app.

When you’re ready to deploy to production, create a minified bundle with npm run build.

Meanwhile in browser you could see:

🚀 Coding and Management with Generative AI 🤖✨

2023-12-21T11:13:00.002+05:30

Thrilled to dive into the transformative world of Generative AI in coding! 💻✨ As a Software Engineer, I've witnessed the game-changing impact of these intelligent systems on the way we write code. 🌐 Generative AI, powered by advanced algorithms, goes beyond conventional coding practices. It not only streamlines the development process but also enhances creativity by suggesting novel solutions to complex problems. 🚀✨

The ability of Generative AI to understand patterns and generate code snippets significantly accelerates development cycles, allowing us to focus on higher-level tasks and innovation. 💡💻 It's like having a coding companion that learns and adapts, making collaboration between humans and machines more dynamic than ever. As we embrace this paradigm shift, the benefits extend beyond efficiency. Generative AI fosters a culture of continuous learning, enabling developers to explore new languages, frameworks, and methodologies effortlessly. 🌐🔍

As a Technical Program Manager, leading a team that leverages AI in day-to-day operations is both exhilarating and strategically pivotal. The integration of AI into our workflow has not only propelled efficiency but also transformed the way we approach problem-solving and decision-making. Being at the forefront of this technological wave, I ensure seamless collaboration between our technical experts and AI systems, optimizing their symbiotic relationship. My role involves crafting strategies that align AI applications with our project objectives, fostering innovation, and maintaining a balance between human ingenuity and machine capabilities.

In this dynamic environment, I am the bridge between the technical intricacies of AI and the overarching goals of our projects. Facilitating cross-functional communication, I empower the team to harness the full potential of AI tools, creating a synergy that enhances productivity and drives continuous improvement. Moreover, I actively seek opportunities for professional development, ensuring that both myself and the team stay abreast of the latest AI advancements. This proactive approach positions me as a leader who not only embraces innovation but also guides the team in navigating the evolving landscape of AI, ultimately contributing to the success and future readiness of our projects.

Several AI-powered tools have emerged to assist developers in coding and design, streamlining processes, enhancing productivity, and promoting innovation. Here are some notable examples:

TabNine:
- Type: Code Completion
- TabNine uses a machine learning model to provide highly accurate code suggestions as developers type. It understands context, making it a powerful and efficient coding companion.
GitHub Copilot:
- Type: Code Generation
- Developed by GitHub in collaboration with OpenAI, Copilot suggests entire lines or blocks of code as developers write. Trained on diverse codebases, it's a groundbreaking tool for accelerating development.
DeepCode:
- Type: Code Review
- DeepCode employs AI to analyze code and provide intelligent suggestions for improvements, catching potential bugs, security vulnerabilities, and style issues during the code review process.
Sketch2React:
- Type: Design to Code
- For designers working with Sketch, Sketch2React utilizes AI to convert design elements into functional code components, fostering a smoother handoff between design and development teams.
Runway ML:
- Type: General-Purpose AI Toolkit
- Runway ML is a versatile toolkit allowing developers to integrate various machine learning models into their projects, from image generation to natural language processing, without requiring in-depth ML expertise.
Figma Auto Layout:
- Type: Design Layout
- While not strictly AI, Figma Auto Layout utilizes smart algorithms to automatically adjust design layouts based on content changes, reducing the manual effort in maintaining consistent designs across different screen sizes.
Canva Pro:
- Type: Design Assistance
- Canva Pro incorporates AI-driven design tools, providing suggestions for layouts, color palettes, and fonts, assisting designers in creating visually appealing graphics and presentations.
Adobe Sensei (within Adobe Creative Cloud):
- Type: AI-Powered Creativity
- Adobe Sensei, integrated into Adobe's suite of creative tools, leverages AI for tasks like image recognition, automated tagging, and content-aware fill, enhancing the overall design and creative process.

In our engineering journey, embracing Generative AI tools for programming has been transformative. These tools showcase the diverse applications of AI in coding and design, addressing various aspects of the development lifecycle and empowering teams to work more efficiently and creatively. My advice to the teams is twofold: First, treat AI as a collaborative ally, not a replacement. Leverage its prowess for code suggestions, but maintain your creative oversight. Second, understand the tool's strengths and limitations to optimize its usage. While it accelerates coding, critical thinking remains irreplaceable.

Security-wise, AI is a robust ally. Integrate it for anomaly detection, recognizing patterns indicative of potential threats. In stress testing, AI simulations mimic real-world scenarios, identifying system vulnerabilities and ensuring robust performance under pressure. My counsel is to embrace these AI applications judiciously, enhancing efficiency and fortifying our engineering endeavors. As we tread this innovative path, let's remain vigilant, striking a balance between AI-driven assistance and human ingenuity, ensuring a symbiotic relationship that propels us toward unprecedented engineering excellence.

I've also been excited to share to my fellow TPMs about integrating AI into our daily workflows can elevate our roles and boost project success. Embracing AI technologies offers a spectrum of benefits, from optimizing routine tasks to unlocking new dimensions of efficiency and innovation. I encourage all to explore AI's potential in your specific program management tasks. Start small, experiment, and gradually integrate AI solutions into your workflow. By doing so, we can collectively lead our teams into a future where the fusion of human expertise and AI capabilities propels us toward unparalleled project success.

Firstly, consider automating repetitive tasks. AI can handle mundane processes, freeing up valuable time for strategic thinking and complex problem-solving. This shift allows us to focus on the aspects of our projects that truly require human ingenuity. Next, leverage AI for data analysis. The power of AI in processing vast datasets enables us to derive actionable insights swiftly. By incorporating AI-driven analytics, we enhance our decision-making processes and gain a competitive edge in project management. Furthermore, AI-driven project management tools can enhance collaboration, streamline communication, and offer predictive analytics for better risk assessment. This not only optimizes project timelines but also ensures that we are well-prepared to mitigate potential challenges.

Four benefits of using AI in Project Management:

Enhanced Efficiency: AI streamlines project management by automating repetitive tasks, allowing teams to focus on high-impact activities. Time-consuming processes, such as data analysis and task prioritization, are expedited, leading to quicker project delivery.
Improved Decision-Making: AI-driven analytics provide real-time insights, enabling informed decision-making. Predictive analytics identify potential risks, allowing proactive measures. Managers gain a comprehensive view of project progress, resource allocation, and potential bottlenecks, facilitating more strategic and data-driven decisions.
Optimized Resource Allocation: AI tools analyze historical project data to optimize resource allocation. This ensures that the right resources are assigned to the right tasks, preventing overloading of team members and enhancing overall project efficiency.
Predictive Planning: AI enables predictive planning by analyzing historical project data and identifying patterns. This foresight helps in setting realistic project timelines, anticipating challenges, and adjusting strategies accordingly, contributing to a more agile and adaptive project management approach.

AI tools revolutionize program management, boosting efficiency and decision-making. Asana leverages machine learning to optimize task prioritization and workflow. Jira integrates AI for predictive analytics, identifying potential project bottlenecks. Trello employs AI for smarter task automation and resource allocation. Monday.com utilizes AI-driven insights to enhance collaboration and streamline project timelines. Smartsheet employs AI algorithms for data analysis, aiding in project planning and risk assessment. Clarizen harnesses AI for real-time project tracking, ensuring alignment with goals. By integrating these AI tools, program managers can elevate their capabilities, making informed decisions, and optimizing project outcomes.

Free AI utilities empower managers with quick solutions. ChatGPT streamlines communication through natural language processing, aiding in efficient team collaboration. Otter.ai employs AI transcription for meeting notes, enhancing documentation processes. Canva integrates AI for automatic design suggestions, facilitating visual content creation. Grammarly enhances written communication with AI-driven grammar and style suggestions. Google's AutoML simplifies the creation of custom machine learning models for specific business needs. Leveraging these free AI tools, managers can save time, improve communication, and streamline tasks, fostering a more efficient and productive work environment.

Excited about the future possibilities, I'm incorporating Generative AI into my coding and management toolkit at Expedia Group and beyond. Let's connect and discuss how this technology is reshaping the coding landscape. 🌐🔗

My IEEE Journey so far and way ahead - Anwar Jamal

2023-12-21T10:58:00.003+05:30

In the dynamic realm of Software Engineering and Management, my professional journey has been marked by a passion for exploration, a love for meeting diverse minds, and an unwavering commitment to excellence. As a dedicated traveler, I find joy in unraveling new cultures and connecting with people across the globe. Amidst this exciting journey, my focus on testing, quality, and cybersecurity has been complemented by my role as the founder of W3LC, a thriving forum for learners and tech enthusiasts.

For the past decade, my affiliation with the Institute of Electrical and Electronics Engineers (IEEE) has been an integral part of my growth story. From a humble start as a Student Member, I progressed through the ranks, earning the titles of Young Professional and, presently, a Senior Member. The IEEE community has not only been a source of cutting-edge research but a nurturing ground for personal and professional development. My involvement with IEEE has been multifaceted – from a diligent paper reviewer to a recognized presenter at multiple conferences. The honor of being an Ambassador for the IEEE Collabratec Platform and mentoring at an IEEE Hackathon added layers to my rich experience. Through IEEE, I have received opportunities for paper presentations and garnered well-deserved recognition, contributing to my journey's success.

As a Technical Program Manager at Expedia Group, IEEE has been my compass for cutting-edge research, invaluable networking, and industry insights. Engaging with conferences, publications, and Collabratec, I gain a competitive edge, ensuring my role evolves with the latest technological advancements. IEEE is my trusted ally in navigating the tech landscape. Navigating the vast landscape of IEEE, I have found invaluable resources through the Explore publication and Computer Society emails. These communications, covering themes like Technology Innovation, Job Alerts, and Standards Association updates, have been instrumental in keeping me abreast of the latest trends and insights in the tech industry. While I receive a plethora of emails, I selectively engage with those that align with my interests, skipping over some that may not directly contribute to my professional growth.

If you ask me what IEEE does well I would assertively say that IEEE excels in delivering comprehensive technical publications through platforms like IEEE Xplore, providing access to extensive research. The organization facilitates robust networking opportunities through global events, such as the IEEE International Conference on Robotics and Automation, fostering collaboration. IEEE's contributions to industry standards, notably the widely recognized IEEE 802.11 Wi-Fi standards, showcase its commitment to technological consistency. Educational resources, including the IEEE eLearning Library, support continuous professional development. Additionally, platforms like IEEE Collabratec contribute to building a strong professional community.

And if you ask me where IEEE can improve then I have some suggestions. Cost accessibility remains a challenge for some, with membership fees and event costs acting as barriers for some individuals. Continuous members of 3+ years should get additional discounts. Volunteering people should get additional discounts. Improving user interfaces, especially on platforms like IEEE Xplore, could enhance accessibility. Engaging younger members more effectively through interactive content, targeted outreach, and mentorship programs is an opportunity for growth. Clearer communication channels and information dissemination about events, updates, and membership benefits would enhance the member experience. Another help we can do is to have a limited earning potential as well eg presence of any paid activities. Ensuring global outreach by tailoring initiatives to diverse demographics is crucial for a truly inclusive IEEE. Addressing these aspects would contribute to a more dynamic and accessible experience for members.

My connection with IEEE extends beyond emails and publications. Regular visits to IEEE.org and active participation on IEEE Collabratec have been essential for accessing the latest research, publications, and engaging with the community. Attending the BVICAM Research Conference facilitated networking and exposure to cutting-edge research. Participating as a Hackathon Mentor through IEEE opened avenues for hands-on collaboration and skill-sharing. As a member for over ten years, I've witnessed the wealth of opportunities and knowledge that IEEE provides, albeit with a keen eye on refining its approach for the benefit of younger members. Reflecting on my evolving needs from IEEE, the organization has been a reliable companion throughout my career. While excelling in delivering technical publications and fostering networking opportunities, there's room for improvement.

To enhance the experience for younger members, I propose a strategic shift in content delivery. Utilizing more interactive and visual formats, diversifying topics, and personalizing communication can be key in capturing the attention of the tech-savvy younger generation. Emphasizing interactive platforms and optimizing social media presence, particularly on LinkedIn, would ensure that IEEE remains a relevant and engaging force in the rapidly evolving tech landscape. Accessing technical content primarily through IEEE Xplore, I acknowledge its importance in my professional life. However, I suggest exploring avenues such as podcasts to broaden accessibility and appeal to different learning preferences. Simplifying access to resources and incorporating smart suggestions in the input box can further elevate the user experience, aligning with modern navigation trends.

On average I get 1-2 emails daily from IEEE that help me explore content and learning materials from Explore publication, Computer Society delving deeper into specific themes. Featured article alerts cover Technology Innovation, Job Alerts, Standards Association updates, and Spotlights. Technology updates provide a quick overview of IEEE trends when time is limited. The Membership Benefits emails are particularly helpful, enhancing my overall experience with timely insights and updates. From Standards Association I can an email digest. Sometimes I get email from IESE Explore publications and sometimes calls for participation. I find these helpful. I regularly visit IEEE.org for the latest research, publications, and tech trends. I engage with IEEE.TV for informative videos on technological advancements. On IEEE Collabratec, I actively participate in conversations, finding it a valuable platform for networking, collaboration, and staying updated within the IEEE community. I follow IEEE and Computer Society both on LinkedIn. On YouTube I have subscribed to IEEE but I watch it very less. However, i think I'd be more inclined to explore IEEE's social media feed frequently if it featured concise tech updates, highlights from IEEE publications, and insider insights from industry experts. Instead of platform like Twitter, with its real-time nature and brevity, I find platform like LinkedIn or website of IEEE itself would be ideal for quick access to the diverse range of IEEE information I seek.

Active participation in professional activities and groups has been a cornerstone of my growth. Yet, cost and limited physical invitations have been barriers to deeper involvement. I propose more cost-effective membership options, enhanced event promotion, and embracing emerging technologies for interactive online engagement to overcome these challenges. As I continue to leverage IEEE for my professional journey, I extend my recommendations for recognition of research participants, transparent communication, and more physical speaking opportunities. These actions will not only enhance member engagement but also contribute to a stronger sense of community within IEEE. Further, I access technical content through IEEE Xplore, if I have access, examining abstracts to gauge relevance. For articles, I browse IEEE magazines to pinpoint key topics for deeper exploration. While satisfied with this approach, incorporating podcasts on select subjects could enhance accessibility. Exploring ways to broaden access to IEEE Xplore content or considering alternative platforms for wider reach would be beneficial for a more comprehensive and inclusive experience.

IEEE shapes my management skills by offering diverse perspectives through conferences, mentorship programs, and collaborative platforms like Collabratec. Engaging with industry leaders and accessing resources on IEEE enhances my decision-making and leadership abilities, contributing to my continuous growth as a dynamic manager. Watching global leaders share insights and experiences on IEEE platforms is inspiring. Learning from their expertise and diverse perspectives elevates my ability to manage technical programs at Expedia Group. It instills confidence, broadens my vision, and empowers me to navigate complex challenges with strategic finesse.

In conclusion, I express my gratitude to IEEE for its instrumental role in my career. I eagerly anticipate the implementation of these suggestions, propelling IEEE into a more dynamic and inclusive future. Here's to continued success, growth, and evolution within the vibrant world of IEEE. Eagerly anticipating further growth, my plans include leveraging IEEE resources for advanced insights, exploring emerging technologies, and fostering collaborative innovation. I aim to contribute more to the professional community, broaden my technical horizons, and enhance my role as a Technical Program Manager at Expedia Group. Exciting times ahead!

Few Jokes on Unix Operating System and its functionalities *

2023-01-14T19:46:00.003+05:30

I remember i wrote a joke on UNIX users a few years back in one of the blog. I was also sharing this with my colleagues in different offices i worked in. Few friends back there in Adobe system and Symantec used to love these kind of jokes. So i thought few more jokes that i have invented (or discovered or written ☺) since then.

The first one is:

Question - Why did the man using UNIX spend all day at the terminal?

Answer - Because he couldn't figure out how to use the "vi" command to exit!

This was a joke because of similar sound of bye and vi especially in some parts of the world.

Question - Why did the man using UNIX always wear sunglasses?

Answer - Because he was always 'ls'-ing in the sun!

Now this used the similarity between the word 'lying' and 'lsing'

Question - Why did the UNIX user wear a tie to the beach?

Answer - Because he wanted to be "root" in the office and "user" at the beach.

Question - Why did the UNIX user put his computer in the freezer?

Answer - Because he wanted to "cool down" his "system".

Question - Why did the UNIX user stare at the black screen for hours?

Answer - Because he was trying to "cat" the manual!

Please note that these are just jokes and should not be taken seriously. Unix users are just like any other group of people and should not be stereotyped or discriminated against based on their profession or preferences.

PS: The first of my such joke appeared here in 2013 - https://www.w3lc.com/2013/05/checking-file-system-directory-size-in.html

Warehouse management system and the Infoplus Cloud WMS

2023-01-14T01:16:00.001+05:30

A warehouse management system (WMS) is a software application that helps companies manage and organize their warehouse operations. It provides tools for receiving, storing, and distributing products, as well as tracking inventory levels, monitoring warehouse activity, and generating reports. Some of the key features of a WMS include:

Inventory management: A WMS allows companies to track inventory levels in real-time, so they always know how much stock they have on hand and where it's located. This helps prevent stockouts and overstocking, and helps companies make better decisions about when to reorder products.
Receiving and putaway: A WMS helps companies process incoming shipments, including receiving and inspecting products, putting them away in the appropriate storage location, and updating inventory levels.
Picking and packing: A WMS helps companies locate products quickly and efficiently when orders are received, and generate picking lists and packing slips to streamline the order fulfillment process.
Shipping and tracking: A WMS helps companies prepare products for shipment, generate shipping labels, and track shipments as they make their way to customers.
Reporting and analytics: A WMS generates a variety of reports and analytics, including inventory levels, order history, and warehouse activity. This helps companies make data-driven decisions about warehouse operations and improve overall efficiency.
Automation: Many WMSs include tools for automation like barcode scanning, RFID tagging, and integration with other systems like ERP or accounting software, to automate many tasks in the warehouse.

A WMS can also include other features, such as cycle counting, kitting, and cross-docking. It can be used in different ways depending on the type of warehouse (for example, e-commerce warehouse, manufacturing warehouse, etc) and can be customized to fit the specific needs of a company.

Overall, a WMS is a powerful tool for managing warehouse operations, and can help companies improve efficiency, reduce costs, and provide better service to customers. With the help of a WMS, companies can gain better control over their inventory, streamline their order fulfillment process, and make data-driven decisions to improve overall warehouse performance.

Infoplus WMS (Warehouse Management System) is a cloud-based software solution that helps companies manage their warehouse operations. It provides tools for receiving, storing, and distributing products, as well as tracking inventory levels, monitoring warehouse activity, and generating reports. Some of the key features of Infoplus WMS include:

Automated inventory management
Barcode scanning and RFID tagging
Real-time inventory tracking
Shipping and tracking
Reporting and analytics
Mobile and offline capabilities
Integration with other software such as e-commerce platforms, accounting software, and transportation management systems.

Infoplus WMS is designed to be user-friendly and easy to use, and it can be customized to fit the specific needs of a company. It is also scalable, so it can grow with your business. With Infoplus WMS, companies can improve efficiency, reduce costs, and provide better service to customers.

Anwar's Learning Flow Taxonomy - A research oriented guide for school children and students preparing for competitions

2022-09-29T15:39:00.004+05:30

One effective way to study and organize study material is to use the "Pomodoro Technique". This involves breaking up study sessions into 25-minute intervals, with 5-minute breaks in between. During each 25-minute study session, focus solely on one task, such as reading a chapter or working on a set of problems.

Another way to organize study material is to create a study schedule that breaks up the material into manageable chunks. This can be done by creating a weekly or daily study plan, and allocating specific time slots for different subjects or topics.

Additionally, try to use different methods of studying such as flashcards, mnemonic devices, and summarizing the main points in your own words. Using different methods will help keep studying interesting and help you to retain information better. Another way to organize your study material is to use a visual method, such as creating mind maps, flashcards, diagrams or charts.

Lastly, to keep study material organized, consider using a system for keeping track of notes, flashcards, and other study materials. This could include using a physical binder or a digital tool such as a note-taking app.

Very similar to the importance of planning in above example, When researching for school projects or competitions, it is important to start by creating a research plan. This includes identifying a clear research question, outlining a research method, and determining what sources to use.

To find reliable sources, use databases and websites that are credible and peer-reviewed. Avoid using unreliable sources such as Wikipedia or personal blogs. It's also important to take detailed notes while researching, and to organize and cite your sources properly.

When writing your report or presentation, be sure to use your own words and to give credit to the sources you used. Avoid plagiarism by properly citing your sources.

Lastly, practice time management, try to work on the research in chunks and make sure to leave some time to proofread and edit your work before submitting it or giving the presentation.

Sharing here my research based snapshot of an ideal learning flow.

How to test UX of Advertisements : making sure that your ads are providing a good user experience

2022-06-08T20:04:00.002+05:30

You're probably aware that user experience (UX) is important for the success of your website or app. But what about your ads? How can you make sure that your ads are providing a good user experience?

Testing the UX of your ads is essential to making sure that they're effective. Here are some tips on how to test the UX of your ads:

1. Make sure your ads are relevant to your audience.

2. Keep your ads focused and to the point.

3. Use strong calls to action.

4. Use visuals to grab attention.

5. Test, test, test!

Freeze rows or columns in MS Excel or Office 365 Sheets

2022-06-02T12:55:00.001+05:30

Freeze rows or columns

Sometimes you want to freeze certain rows or columns or even an area in Excel sheet that you do not want to move while scrolling the sheet on left, right, up or down. Here is what you need to do - The Freeze Pane feature!

Freeze the first column

Select View > Freeze Panes > Freeze First Column.

The faint line that appears between Column A and B shows that the first column is frozen.

Freeze the first two columns

Select the third column.
Select View > Freeze Panes > Freeze Panes.

Freeze columns and rows

Select the cell below the rows and to the right of the columns you want to keep visible when you scroll.
Select View > Freeze Panes > Freeze Panes.

Create a new filter in new JIRA UI

2022-02-14T14:07:00.001+05:30

What to do if you want to create a new filter in new UI, but are unable to find from where you should create a filter.

Answer:

Do the following steps-

1. You should go to Issues->Search Issues.

You can also try 'Advanced Search' in new UX of Jira.

2. Then you should enter your JQL Query

3. Verify the results

4. use the "Save as" button.

This will be your new Query which you can use later to create a board or search later!

What next:

Just chill the work is done. You can of course thank me in comments :)

Covid-19 Testing and various diagnostic tests for different variants

2022-01-11T13:50:00.002+05:30

This blog is dedicated to the ongoing situation again. The world is happening to be again exposed to the threats of Omicron variant of the Covid-19 Virus. This post is hence more of a medical technology related post. However, I feel that it is most essential today - Be Safe and Keep others safe!It is based on the research as is available on authentic and reliable websites.

You’ve probably heard a lot about coronavirus disease (COVID-19) testing. If you think you have COVID-19 and need a test, contact your health care provider or local health departmentExternal Link Disclaimer immediately. You can also find a community testing site in your state, or buy an FDA-authorized at-home test. Some FDA-authorized at-home tests give you results within minutes. Others require you to mail the sample to a lab for analysis.

Understanding COVID-19 testing is key to making an informed decision that meets your needs, as there are different types of tests – diagnostic tests and antibody tests.

Type of Covid Tests:
Diagnostic tests can show if you have an active COVID-19 infection and need to take steps to quarantine or isolate yourself from others. Molecular and antigen tests are types of diagnostic tests than can detect if you have an active COVID-19 infection. Samples for diagnostic tests are typically collected with a nasal or throat swab, or saliva collected by spitting into a tube.

Antibody tests look for antibodies in your immune system produced in response to SARS-CoV-2, the virus that causes COVID-19. Antibody tests should not be used to diagnose an active COVID-19 infection. Antibodies can take several days or weeks to develop after you have an infection and may stay in your blood for several weeks or more after recovery. Samples for antibody tests are typically blood from a finger stick, or blood drawn by your doctor or other medical personnel.

Getting Tested
If you are tested, you should quarantine and isolate yourself at home until you receive your test results and follow the advice of your health care provider or a public health professional.

When should I get a test?

If you have symptoms of COVID-19, even after vaccination If you have had close contact (within 6 feet for a total of 15 minutes or more) with someone with confirmed COVID-19, even after vaccination If you took part in activities that put you at higher risk for COVID-19 because you could not socially distance as needed, such as travel, attending large social or mass gatherings, or being in crowded indoor settings If you have been asked or referred to get tested by your health care provider, or localExternal Link Disclaimer or state health department Your school, workplace or community may also establish a screening program, in which they test individuals who are part of a group (at work, at school) even if there is no reason to suspect those individuals are infected with COVID-19. The FDA issued more information about screening programs in this fact sheet.

Do COVID-19 tests check for the omicron, delta and other variants?
Currently, COVID-19 tests are designed and authorized to check broadly for the SARS-CoV-2 virus and not for specific variants, sometimes called SARS-CoV-2 viral mutations or genetic mutations. It is common for all viruses to change and mutate over time, resulting in different virus strains. There are no authorized COVID-19 tests that specifically report the presence of the SARS-CoV-2 omicron, delta, or other variants, in patient samples.

If you want to be sure the test you are buying is authorized by the FDA, visit our tables of molecular, antigen, and serology and adaptive immune response in vitro diagnostic emergency use authorizations (EUA) for more information.

IMPORTANT INFORMATION FOR PARTICIPANTS for NASA Space Apps Challenge 2021 - Ghazipur, UP, India

2021-09-08T21:03:00.001+05:30

IMPORTANT INFORMATION FOR PARTICIPANTS

Connect with your Local Lead: Each location Event Info page contains contact information for the “Local Leads” -- the Space Apps volunteers from your location who will be organizing virtual gatherings for your location and providing support to participants both prior to and during the hackathon. (The Universal Event also has a Local Lead.) Please feel free to contact Chapter Lead - Anwar Jamal at [email protected]

Our Facebook Community: Follow Space Apps on https://www.facebook.com/spaceappsghazipur/

You can also follow the blog World Wide Web Learner's Consortium for more details about NASA Space Apps Challenge, ideas and more hackathon helpful APIs and Data.

Pick a Challenge: The challenges are now available! Browse the options and decide which one you want to solve! Recommended data for each challenge can be found by clicking the "Resources" tab. We encourage you to invite your friends along! Typical Space Apps teams have 2-6 participants (the limit is 6 members per team). Space Apps is all about collaboration and the most successful teams are often ones with a diverse set of skills and expertise -- coding, storytelling, creativity, data, science, engineering, technology, and more.

Judging and Awards: Space Apps is all about collaboration and problem solving. However, we do offer awards to the most promising projects. More information about Judging and awards can be found in the Space Apps 2020 Judging and Awards Guide. For Ghazipur Space Apps Challenge the judges will include primarily but not limited to Mohd Anwar Jamal Faiz, Industry professionals, IEEE Members, OWASP Leaders, faculty from AMU Aligarh, PhDs and practitioners of STEM in India.

Learn more! Do you want to know more about the challenges, chat rooms, project submission, and awards and other important information? Please consult the Participant FAQ and other guides on the Space Apps resources page and on your user dashboard.

Thank you! We’re looking forward to a fun-filled Space Apps weekend!

Registration, Sponsorships and Judging

Ghazipur, Uttar Pradesh is inviting teams to register for the contest.

We also welcome sponsorships to join in the event!

Local prize winners shall be judged on the basis of idea, completeness, novelty, presentation and use of NASA available APIs and resources.

For any issues, please contact NASA Space Apps Lead - Mohd Anwar Jamal Faiz (+91-8888327658) [email protected]

SCHEDULE (ALL TIMES ASIA/KOLKATA)

Sunday, September 26th

7:00 pm
Introduction to Space Apps Challenge 2021

NASA Space Apps Challenge - Ghazipur, UP India

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Space Apps 2021 will take place OCTOBER 2–3, 2021. In light of the COVID-19 pandemic and in the interest of our global community’s health and safety, this year’s hackathon will be an all-virtual event. In other words, all local events will be moved online. Our theme for this year’s event -- "Take Action" -- is a critical reminder that you can make a difference, even from the comfort and safety of home. We have brought NASA SpaceApps Challenge to Ghazipur, UP, India this year. There is lots of talent in the Tier 2 cities of India, and the Chapter Leader and Organiser Anwar Jamal aims to motivate the youth and students of this region and bring them to compete globally!

YOU

can participate in the largest
 space & science hackathon  
in the solar system!

Since its inception in 2012, NASA’s International Space Apps Challenge has become the world’s largest global hackathon, engaging thousands of citizens across the globe to use NASA’s open data to build innovative solutions to challenges we face on Earth and in space.

Space Apps is managed by the Earth Science Division, Science Mission Directorate, at NASA Headquarters in Washington, DC. It is organized in collaboration with Booz Allen Hamilton, Mindgrub, SecondMuse, and the NASA Open Innovation Applied Sciences Program.

What is NASA Space Apps Challenge

2021-09-08T21:01:00.002+05:30

HELLO, SPACE APPS COMMUNITY!

Space Apps 2021 will be coming to you on October 2-3, 2021. We’re excited to embark with you on this journey!

This page contains information relevant to ALL participants - no matter which location you’re registered for. To see the particular details for your local virtual event, please select the “Event Info” tab above. That page is important because your location may be hosting special events, offering local awards, or providing additional opportunities that are not reflected on this page or in our other materials. So, make sure you’re up-to-date!

IMPORTANT INFORMATION FOR ALL PARTICIPANTS

In the interest of our global community’s continued health and safety, this year’s hackathon will be an all-virtual event. Thus, all local events will be moved online. While we hope to have in-person events in the future, we hope that this virtual environment provides new opportunities to collaborate across time and space!

Check out Our Resources

To celebrate our tenth annual event, our theme for Space Apps 2021 is the “The Power of Ten.” Click here to read more about the history of Space Apps and how we are celebrating this important milestone.
As you begin your Space Apps journey, the best resource for you to read is the 2021 Participant FAQ (Frequently Asked Questions).
Before the hackathon begins, detailed guides (on chat, team formation, project submission, and judging and awards) will be posted on the Space Apps resources page and on your user dashboard under "Materials.”

Register for a Location

You will not be able to participate in the hackathon until you have registered for a location. Please click the "Register Now" button on this page to register for this location or to create a Space Apps account (if you do not already have one).
If there is a location for your city or for a city near you, please register for that location. (Locations will be added through early September, so please check back for your location.)
If you do not see a local event for your city, please join the Universal Event. It is for everyone who is not affiliated with a location. You will be able to meet other people joining the Universal Event and form teams! (If a location near you is added at a later date, you may change your location.)
You can change your location at any time in your user dashboard, once you have created an account. Select "Change Location."
Registration will be open through the end of the hackathon. However, we encourage you to create an account and register for a location far in advance to ensure that you get plugged into the local community and that you can take full advantage that will open before the hackathon begins, such as chat and team formation.

Contact your Local Lead

Each location page contains contact information for the “Local Leads” -- the Space Apps volunteers from your location who will be organizing virtual gatherings for your location and providing support to participants both prior to and during the hackathon. The Universal Event also has a Local Lead. Don’t hesitate to reach out to them if you have questions!

Save the Dates

The hackathon will begin Saturday, October 2 at 9:00 AM (local time) and end on Sunday, October 3 at 11:59 PM (local time). But there are other important milestones before then, such as the release of challenges and virtual bootcamp videos, as well as the opening of chat and team formation. See the Participant FAQ for all of the important dates.

Recruit Friends

We encourage you to invite your friends along! Typical Space Apps teams have 2-6 participants (the limit is 6 members per team). Space Apps is all about collaboration and the most successful teams are often ones with a diverse set of skills and expertise -- coding, storytelling, creativity, data, science, engineering, technology, and more.

Connect with the Community

Follow Space Apps on Twitter, Instagram, Facebook, and YouTube to receive the latest announcements.

Have additional questions?

If you are unable to find answers to your questions in our resources or from your Local Lead, please email us as [email protected]. We will update this page as additional information and features are available.

W3LC - World Wide Web Learners Consortium

How to set new Github PTA when old expired

How To undo a git add operation (unstage files)

How To change a Git branch name

My Code Disappeared After Switching Branches — Here’s What Actually Happened

😰 What Actually Happened?

🧠 The Important Concept

✅ How I Fixed It

🔎 How To Debug If This Happens To You

1️⃣ Check where you are

2️⃣ See commits across branches

3️⃣ Compare branches

4️⃣ Recover “lost” commits

🚀 Lesson for Developers

💡 Final Thought

how to check apache server and php installed or not on mac

Top 5 Blogposts / patterns of all times on W3LC - A true analysis for from a Technology Blogger

LAMP Stack Development on Mac OS

Primender Sequence: Numbers that are prime or end in a prime number (of any length)

Primender Sequence

Properties

Applications

Sample Python Implementation

Sample Set:

🔁 1. High Frequency of Qualifying Numbers

🔍 2. Overlapping Criteria

📏 3. Mathematical Implication

📈 4. Empirical Confirmation

Mathematical Proof:

🧠 Assumption (for contradiction)

📏 Selection Rules Recap

🔍 Key Observations

1. Last Digit Rule (mod 10)

2. Primes Are Dense

3. Modular Prime Rules (mod 100, mod 1000)

🔄 Contradiction

✅ Conclusion

References:

Python's F-String for String Interpolation and Formatting

How to fix rearrangement of display screen/spaces on Mac?

Resolving 'Failed to Fetch' Errors in JavaScript

Enable CORS on a resource using the AWS API Gateway console

To enable CORS support on a REST API resource

Some simple dev setups on Mac developer machine

🚀 Coding and Management with Generative AI 🤖✨

My IEEE Journey so far and way ahead - Anwar Jamal

Few Jokes on Unix Operating System and its functionalities *

Warehouse management system and the Infoplus Cloud WMS

Anwar's Learning Flow Taxonomy - A research oriented guide for school children and students preparing for competitions

How to test UX of Advertisements : making sure that your ads are providing a good user experience

Freeze rows or columns in MS Excel or Office 365 Sheets

Create a new filter in new JIRA UI

Covid-19 Testing and various diagnostic tests for different variants

IMPORTANT INFORMATION FOR PARTICIPANTS for NASA Space Apps Challenge 2021 - Ghazipur, UP, India

IMPORTANT INFORMATION FOR PARTICIPANTS

Registration, Sponsorships and Judging

SCHEDULE (ALL TIMES ASIA/KOLKATA)

Sunday, September 26th

NASA Space Apps Challenge - Ghazipur, UP India

YOU

can participate in the largest space & science hackathon in the solar system!

What is NASA Space Apps Challenge

HELLO, SPACE APPS COMMUNITY!

IMPORTANT INFORMATION FOR ALL PARTICIPANTS

Check out Our Resources

Register for a Location

Contact your Local Lead

Save the Dates

Recruit Friends

Connect with the Community

Have additional questions?

WE LOOK FORWARD TO A FANTASTIC HACKATHON. THANK YOU FOR BEING A PART OF THE SPACE APPS GLOBAL COMMUNITY!

can participate in the largest
 space & science hackathon  
in the solar system!