wait-for-it.js

$(window).resize(function(){
    waitForFinalEvent(function(){
    yourFunction();
    }, 500, "unique id");
});

/**************************************
 *// Wait For It...
**************************************/
var waitForFinalEvent = (function () {
    var timers = {};

    return function (callback, ms, uniqueId) {
        if (!uniqueId) {
            uniqueId = "Do not call this twice without a uniqueId";
        }
        if (timers[uniqueId]) {
            clearTimeout (timers[uniqueId]);
        }
        timers[uniqueId] = setTimeout(callback, ms);
    };
})();