Created
May 14, 2020 06:11
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Vanilla JS throttle, vanilla JS debounce
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| // https://vanillajstoolkit.com/helpers/debounce/ | |
| var debounce = function (fn) { | |
| // Setup a timer | |
| var timeout; | |
| // Return a function to run debounced | |
| return function () { | |
| // Setup the arguments | |
| var context = this; | |
| var args = arguments; | |
| // If there's a timer, cancel it | |
| if (timeout) { | |
| window.cancelAnimationFrame(timeout); | |
| } | |
| // Setup the new requestAnimationFrame() | |
| timeout = window.requestAnimationFrame(function () { | |
| fn.apply(context, args); | |
| }); | |
| } | |
| }; |
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| // doing this to show/hide the tooltips based on mobile size. | |
| function throttle(func, alternateFunc, minimumInterval) { | |
| var executeImmediately = true, freshEvt = null; | |
| return function (Evt) { | |
| if (executeImmediately) { // Execute immediately | |
| executeImmediately = false; | |
| setTimeout(function (f) { // handle further calls | |
| executeImmediately = true; | |
| if (freshEvt !== null) func(freshEvt); | |
| freshEvt = null; | |
| }, minimumInterval); | |
| return func(Evt); | |
| } else { // Delayed execute | |
| freshEvt = Evt; | |
| if (typeof alternateFunc === "function") alternateFunc(Evt); | |
| } | |
| }; | |
| } |
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