Javascipt

Creating a for loop and a while loop in JavaScript using below simple example:

// Example: Printing numbers from 1 to 5 using a for loop
for (let i = 1; i <= 5; i++) {
  console.log(i);
}

In this example, the for loop iterates over the values of i from 1 to 5. It prints the value of i in each iteration using console.log().

While Loop:

HTML5 video playing on any web page is very easy, in this tutorial we can show you how to add video on html and make it play and pause without using html controls. I personally use this  play pause because many times we are using video to play auto animation to website

Below is the code and embed codepen to show its works:

If you want to prevent the form submit using jquery, then this page helps you to doing this.

jQuery(document).ready(function() {
                jQuery(window).keydown(function(event) {
                    if (event.keyCode == 13) {
                        event.preventDefault();
                        return false;
                    }
                });
            });