Most efficient javascript/AJAX toolkit?

Question

What is the most efficient Javascript/AJAX toolkit?

Answer 1

jQuery seems pretty popular at the moment, and is lightweight.

• http://jquery.com/

Their API is well constructed and designed, and the resulting code tends to be very concise.

Some may find it TOO concise - matter of taste. On larger projects I sometimes end up using YUI - it's a lot more heavyweight, but for a large codebase I find it easier to read something a little more explicit.

• http://developer.yahoo.com/yui/

Really, it's a bit of a subjective question; most efficient will depend on what makes the most sense to your coding style, what you're trying to do, and what you're interacting with.

Best of luck!