32 lines
804 B
JavaScript
32 lines
804 B
JavaScript
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define([], function(){
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// module:
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// dojo/throttle
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// summary:
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// This module provide a throttler
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return function(cb, wait){
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// summary:
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// Create a function that will only execute once per `wait` periods.
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// description:
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// Create a function that will only execute once per `wait` periods
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// from last execution when called repeatedly. Useful for preventing excessive
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// calculations in rapidly firing events, such as window.resize, node.mousemove
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// and so on.
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// cb: Function
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// The callback to fire.
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// wait: Integer
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// time to delay before allowing cb to call again.
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var canrun = true;
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return function(){
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if(!canrun){
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return;
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}
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canrun = false;
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cb.apply(this, arguments);
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setTimeout(function(){
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canrun = true;
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}, wait);
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};
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};
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});
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