debounce

// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds. If `immediate` is passed, trigger the function on the
// leading edge, instead of the trailing.
function debounce(func, wait, immediate) {
	var timeout;
	return function() {
		var context = this, args = arguments;
		var later = function() {
			timeout = null;
			if (!immediate) func.apply(context, args);
		};
		var callNow = immediate && !timeout;
		clearTimeout(timeout);
		timeout = setTimeout(later, wait);
		if (callNow) func.apply(context, args);
	};
};

// Usage:
var myEfficientFn = debounce(function() {
	// All the taxing stuff you do
}, 250);

window.addEventListener('resize', myEfficientFn);

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3.43

7

Dr. Learner 80 points

                                    
// This is from David Walshes Blog Post 
// https://davidwalsh.name/javascript-debounce-function
// A very simplified but effective version of Underscores debounce function
function debounce(func, wait, immediate) {
	var timeout;
	return function() {
		var context = this, args = arguments;
		var later = function() {
			timeout = null;
			if (!immediate) func.apply(context, args);
		};
		var callNow = immediate &amp;&amp; !timeout;
		clearTimeout(timeout);
		timeout = setTimeout(later, wait);
		if (callNow) func.apply(context, args);
	};
};

Thank you! 7

3.43 (7 Votes)

0

4

2

Williamlue929 110 points

                                    const debounce = (func, delay) =&gt; {  let inDebounce  return function() {    const context = this    const args = arguments    clearTimeout(inDebounce)    inDebounce = setTimeout(() =&gt; func.apply(context, args), delay)  }}

Thank you! 2

4 (2 Votes)

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