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35 lines
641 B
JavaScript
35 lines
641 B
JavaScript
/**
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* @param {Function} fn
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* @param {number} t
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* @return {Function}
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*/
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var throttle = function(fn, t) {
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let on_cooldown = false;
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let queuedArgs = null;
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const handler = () => {
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if (queuedArgs === null) {
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on_cooldown = false;
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return;
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}
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fn.apply(null, queuedArgs);
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queuedArgs = null;
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on_cooldown = true;
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setTimeout(handler, t);
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};
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return function(...args) {
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queuedArgs = args;
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if (!on_cooldown) {
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handler();
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}
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}
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};
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/**
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* const throttled = throttle(console.log, 100);
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* throttled("log"); // logged immediately.
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* throttled("log"); // logged at t=100ms.
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*/
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