Ways to throttle ajax requests

Question

I\'m using the following code (written by another user) to throttle ajax requests in a livesearch function:

JSFiddle if you prefer a demo: http://jsfiddle.net/4xLVp/

Answer 1

I would just use setTimeout:

(function() {
    var timeout;
    $('#tag-search').keyup( function() {
        var elem = $(this);
        if (elem.val().length >= 2) {
            clearTimeout(timeout);
            timeout = setTimeout(function() {
               $.ajax({ // ajax stuff
                    'success': function(data){ /*show result*/ }
                });     
            }, 80); // <-- choose some sensible value here                                      
        } else if (string.length <= 1) { /*show original content*/ }
    });
}());

There is also a debounce/throttle plugin.