Understanding Asynchronous JavaScript and XML AJAX is not a proprietary technology, programming language or a packaged product. Rather, it is a web browser technology and open standard that's ...

If you write JavaScript, you have probably used higher-order functions and not even noticed. If you have ever replaced a for loop with an array method, you’ve used higher-order functions.

While JavaScript itself is single-threaded, many JavaScript functions have supported asynchronous processing through callbacks (the variations on the jQuery AJAX function are just the most obvious ...