You can build many useful web apps with just a few files. You can also extend this simple notes app to add more functionality. For example, you can use the window.location property to retrieve the ...

JavaScript Made Easy: How to Make a Simple Image Rollover. By Dori Smith. JAN 31, 2001 4:00 pm PST. ... For this example, I’m assuming that you’ve already tried “Your First Script.” ...

For example, let’s take the following scenario where we want to create an array of square roots of numbers greater than 30. The same scenario implemented using reduce looks like this.

In this quick tutorial, I’ll show you how to upload a file from a web browser, with a Node.js file upload handler on the server-side, and a pure, Ajax based JavaScript process on the client side. Step ...