Dave over at ILoveJackDaniels.com has a nice cheat sheet in PDF and PNG format. Nice and wallet sized. Included, you’ll find a guide to the XMLHttpRequest object, functions and methods (from DOM and otherwise), some simple JavaScript, Regular Expressions and Events.
This has come in very handy to me personally, so I urge any serious web developer (except the experts, of course) to take a look at this and keep it close.
Here’s a little intro what I’ve been working on at my Job for the past couple months.
AJAX stands for Asynchronous JavaScript And XML for web development. Basically you use a some JavaScript to get down below the browser level and control HTTP “GET"s and “POST"s and stuff like that. It’s used by stuff like Google Maps and Google Suggest and GMail. What it enables is basically background activity without the user’s knowledge.
I first came across AJAX at my job. I was trying to give an application some Web capabilities and I realized that the normal way the browser works was very limited. In an article at News.com, Martin LaMonica has also realized the limits we are at:
At the moment, Web pages are limited, compared with most desktop applications. AJAX frees Web pages from the clunkiness they suffer from by making them more interactive and so more functional, Web developers say.