59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
"use strict";
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exports.__esModule = true;
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exports["default"] = debounce;
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/**
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* @author {@link https://github.com/jashkenas/underscore underscorejs}.
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* @version 1.7.0
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* @see {@link http://underscorejs.org/#debounce underscore.debounce(function, wait, [immediate])}
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* @param func
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* @param wait
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* @param immediate
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* @returns {*}
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*/
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/* eslint-disable */
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function debounce(func, wait, immediate) {
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var timeout, args, context, timestamp, result;
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var _now = Date.now || function () {
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return new Date().getTime();
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};
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var later = function later() {
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var last = _now() - timestamp;
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if (last < wait && last >= 0) {
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timeout = setTimeout(later, wait - last);
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} else {
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timeout = null;
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if (!immediate) {
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result = func.apply(context, args);
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if (!timeout) {
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context = args = null;
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}
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}
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}
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};
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return function () {
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context = this;
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args = arguments;
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timestamp = _now();
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var callNow = immediate && !timeout;
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if (!timeout) {
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timeout = setTimeout(later, wait);
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}
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if (callNow) {
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result = func.apply(context, args);
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context = args = null;
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}
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return result;
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};
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} |