parent
30d5a12e9a
commit
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/**
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* debounce
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* @param {integer} milliseconds This param indicates the number of milliseconds
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* to wait after the last call before calling the original function.
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* @param {object} What "this" refers to in the returned function.
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* @return {function} This returns a function that when called will wait the
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* indicated number of milliseconds after the last call before
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* calling the original function.
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*/
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Function.prototype.debounce = function (milliseconds, context) {
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var baseFunction = this,
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timer = null,
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wait = milliseconds;
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return function () {
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var self = context || this,
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args = arguments;
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function complete() {
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baseFunction.apply(self, args);
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timer = null;
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}
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if (timer) {
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clearTimeout(timer);
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}
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timer = setTimeout(complete, wait);
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};
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};
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/**
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* throttle
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* @param {integer} milliseconds This param indicates the number of milliseconds
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* to wait between calls before calling the original function.
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* @param {object} What "this" refers to in the returned function.
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* @return {function} This returns a function that when called will wait the
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* indicated number of milliseconds between calls before
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* calling the original function.
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*/
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Function.prototype.throttle = function (milliseconds, context) {
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var baseFunction = this,
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lastEventTimestamp = null,
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limit = milliseconds;
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return function () {
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var self = context || this,
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args = arguments,
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now = Date.now();
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if (!lastEventTimestamp || now - lastEventTimestamp >= limit) {
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lastEventTimestamp = now;
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baseFunction.apply(self, args);
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}
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};
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};
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