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1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 /** | |
6 * @fileoverview Some utility functions that don't belong anywhere else in the | |
7 * code. | |
8 */ | |
9 | |
10 var util = (function() { | |
11 var util = {}; | |
12 util.object = {}; | |
13 /** | |
14 * Calls a function for each element in an object/map/hash. | |
15 * | |
16 * @param obj The object to iterate over. | |
17 * @param f The function to call on every value in the object. F should have | |
18 * the following arguments: f(value, key, object) where value is the value | |
19 * of the property, key is the corresponding key, and obj is the object that | |
20 * was passed in originally. | |
21 * @param optObj The object use as 'this' within f. | |
22 */ | |
23 util.object.forEach = function(obj, f, optObj) { | |
24 'use strict'; | |
25 var key; | |
26 for (key in obj) { | |
27 if (obj.hasOwnProperty(key)) { | |
28 f.call(optObj, obj[key], key, obj); | |
29 } | |
30 } | |
31 }; | |
32 util.millisecondsToString = function(timeMillis) { | |
33 function pad(num) { | |
34 num = num.toString(); | |
35 if (num.length < 2) { | |
36 return '0' + num; | |
37 } | |
38 return num; | |
39 } | |
40 | |
41 var date = new Date(timeMillis); | |
42 return pad(date.getUTCHours()) + ':' + pad(date.getUTCMinutes()) + ':' + | |
43 pad(date.getUTCSeconds()) + ' ' + pad((date.getMilliseconds()) % 1000); | |
44 }; | |
45 | |
46 return util; | |
47 }()); | |
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