JavaScript

Discuss the functionality JavaScript can provide in a webpage with the help of a suitable example code.

JavaScript functionality in a webpage with example code JavaScript can provide interactive functionality such as form validation, dynamic content updates, event handling, animations, etc. Example Code: <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <title>JavaScript Example</title> <script> function greetUser() { const name = document.getElementById(‘username’).value; alert(‘Hello, ‘ + name + ‘!’); } </script> </head> <body> <input type=”text” … Read more

How is event-based code used in JavaScript?

Event-based code in JavaScript executes functions when a specific event occurs, such as a click, hover, or key press. This is achieved using event listeners like onclick, onmouseover, and onkeydown. For example: <button onclick=”alert(‘Button clicked!’)”>Click Me</button> Here, when the button is clicked, an alert box appears. JavaScript’s addEventListener() method provides more control by allowing multiple … Read more