Source: debounce/debounce.es.js

  1. /**
  2.  * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
  3.  *
  4.  * This library is free software; you can redistribute it and/or modify it under
  5.  * the terms of the GNU Lesser General Public License as published by the Free
  6.  * Software Foundation; either version 2.1 of the License, or (at your option)
  7.  * any later version.
  8.  *
  9.  * This library is distributed in the hope that it will be useful, but WITHOUT
  10.  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  11.  * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
  12.  * details.
  13.  */
  15. /**
  16.  * Debounces function execution.
  17.  * @param {!function()} fn
  18.  * @param {number} delay
  19.  * @return {!function()}
  20.  */
  21. function debounce(fn, delay) {
  22. 	return function debounced() {
  23. 		const args = arguments;
  24. 		cancelDebounce(debounced);
  25. 		debounced.id = setTimeout(() => {
  26. 			fn(...args);
  27. 		}, delay);
  28. 	};
  29. }
  31. /**
  32.  * Cancels the scheduled debounced function.
  33.  * @param {function()} debounced
  34.  */
  35. function cancelDebounce(debounced) {
  36. 	clearTimeout(debounced.id);
  37. }
  39. export default debounce;
  40. export {cancelDebounce, debounce};