Nowadays JavaScript has three different keywords to declare a variable — var, let and, const. Each has its own properties and particularities. Let’s start by making a simple comparison table ...

Of all the hats JavaScript can wear, its form-processing features are among the most sought and used. Learn how to use JavaScript for form processing, validation, and more.

Can javascript declare a function as synchronized? If so, how?I've looked in a few places, and have been unable to find a definitive answer to this question.

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.

Most JavaScript developers are familiar with the npm package manager, which was originally developed by Isaac Schlueter. What many probably don't know is ...