https://devops1.com.au/assets/js/form-validation.js

1$(function() {
2  // Initialize form validation on the registration form.
3  // It has the name attribute "registration"
4  $("form[name='contact-form'], form[name='planner-form'], form[name='001-event-form'").validate({
5    // Specify validation rules
6    rules: {
7      firstname: "required",
8      lastname: "required",
9      email: {
10        required: true,
11        // Specify that email should be validated
12        // by the built-in "email" rule
13        email: true
14        // Specify format for email
15      }
16    },
17    // Specify validation error messages
18    messages: {
19      fullname: "Please enter your Full Name",
20      firstname: "Please enter your First Name",
21      lastname: "Please enter your Last Name",
22      email: "Please enter a valid email address"
23    },
24    // Make sure the form is submitted to the destination defined
25    // in the "action" attribute of the form when valid
26    submitHandler: function(form) {
27      form.submit();
28    }
29  });
30
31  // Resize textarea on page load
32  var textarea = $('#message');
33  autoResize(textarea);
34
35  // Resize textarea on input
36  textarea.on('input', function() {
37    autoResize($(this));
38  });
39
40  function autoResize(textarea) {
41    textarea.css('height', 'auto');
42    textarea.css('height', textarea[0].scrollHeight + 'px');
43  }
44});