scripts.js

js egosa0424.github.io collected 2026-10-03 09:08:24 UTC 1,176 bytes, 29 lines download raw bytes

1/*!
2* Start Bootstrap - Clean Blog v6.0.9 (https://startbootstrap.com/theme/clean-blog)
3* Copyright 2013-2023 Start Bootstrap
4* Licensed under MIT (https://github.com/StartBootstrap/startbootstrap-clean-blog/blob/master/LICENSE)
5*/
6window.addEventListener('DOMContentLoaded', () => {
7    let scrollPos = 0;
8    const mainNav = document.getElementById('mainNav');
9    const headerHeight = mainNav.clientHeight;
10    window.addEventListener('scroll', function() {
11        const currentTop = document.body.getBoundingClientRect().top * -1;
12        if ( currentTop < scrollPos) {
13            // Scrolling Up
14            if (currentTop > 0 && mainNav.classList.contains('is-fixed')) {
15                mainNav.classList.add('is-visible');
16            } else {
17                console.log(123);
18                mainNav.classList.remove('is-visible', 'is-fixed');
19            }
20        } else {
21            // Scrolling Down
22            mainNav.classList.remove(['is-visible']);
23            if (currentTop > headerHeight && !mainNav.classList.contains('is-fixed')) {
24                mainNav.classList.add('is-fixed');
25            }
26        }
27        scrollPos = currentTop;
28    });
29})

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