Functions running in parallel with other functions are called Async. The example in promises.html shows problem with the sync javascript. It blocks the code until it finishes the code that is ...

Does not affect or mutate external state (ie : no side effects) Does not rely on external state Always return same output for a given input Have up to date documentation You can't rely on ...

As an aside, note that the Intl.ListFormat() JavaScript object makes it easy to add “and” before the last item in a comma-separated array-to-string. So, the code ...

As always, only use this code if the browser you’re designing for supports image manipulation via JavaScript (that is, Netscape 3 or later and Internet Explorer 4 or later).

JavaScript Made Easy: How to Make a Simple Image Rollover. By Dori Smith. JAN 31, 2001 4:00 pm PST. ... This line checks to see if the JavaScript code can detect any images on the page.

This simple JavaScript code will work in Internet Explorer. In this script, you're declaring two variables and using them in a function. The first variable, urlAddress, is the address of your Web page ...