To change an element's class with JavaScript, you can use the className property to set the class to a new value.

If you would like to Validate an Email Address in JavaScript have a different ways, Using regular expressions is probably the best way (regex) to match the email address against a pattern.

In JavaScript, a closure is a function that has access to the variables in its outer (enclosing) function's scope chain.

To remove a property from a JavaScript object, you can use the delete operator.

There are several ways to make HTTP requests in JavaScript. The XMLHttpRequest object is a built-in object in JavaScript that allows you to make HTTP requests.

Redirection means that when an HTTP request for one page automatically goes to another page. Usually redirection of a web page is used for redirecting to a different domain for example when we move our website from one URL to another URL or version change of a web page.

If you have an array of numbers and use the method push to add some of the elements on it. The specific elements have to remove from the array, So to resolve the issue in a simple way,