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8 | (function () {
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9 | 'use strict';
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10 |
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11 | var classNames = (function () {
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12 |
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13 |
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14 | function StorageObject() {}
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15 | StorageObject.prototype = Object.create(null);
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16 |
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17 | function _parseArray (resultSet, array) {
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18 | var length = array.length;
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19 |
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20 | for (var i = 0; i < length; ++i) {
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21 | _parse(resultSet, array[i]);
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22 | }
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23 | }
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24 |
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25 | var hasOwn = {}.hasOwnProperty;
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26 |
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27 | function _parseNumber (resultSet, num) {
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28 | resultSet[num] = true;
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29 | }
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30 |
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31 | function _parseObject (resultSet, object) {
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32 | for (var k in object) {
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33 | if (hasOwn.call(object, k)) {
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34 |
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35 |
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36 | resultSet[k] = !!object[k];
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37 | }
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38 | }
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39 | }
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40 |
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41 | var SPACE = /\s+/;
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42 | function _parseString (resultSet, str) {
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43 | var array = str.split(SPACE);
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44 | var length = array.length;
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45 |
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46 | for (var i = 0; i < length; ++i) {
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47 | resultSet[array[i]] = true;
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48 | }
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49 | }
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50 |
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51 | function _parse (resultSet, arg) {
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52 | if (!arg) return;
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53 | var argType = typeof arg;
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54 |
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55 |
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56 | if (argType === 'string') {
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57 | _parseString(resultSet, arg);
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58 |
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59 |
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60 | } else if (Array.isArray(arg)) {
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61 | _parseArray(resultSet, arg);
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62 |
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63 |
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64 | } else if (argType === 'object') {
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65 | _parseObject(resultSet, arg);
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66 |
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67 |
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68 | } else if (argType === 'number') {
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69 | _parseNumber(resultSet, arg);
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70 | }
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71 | }
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72 |
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73 | function _classNames () {
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74 |
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75 |
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76 | var len = arguments.length;
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77 | var args = Array(len);
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78 | for (var i = 0; i < len; i++) {
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79 | args[i] = arguments[i];
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80 | }
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81 |
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82 | var classSet = new StorageObject();
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83 | _parseArray(classSet, args);
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84 |
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85 | var list = [];
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86 |
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87 | for (var k in classSet) {
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88 | if (classSet[k]) {
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89 | list.push(k)
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90 | }
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91 | }
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92 |
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93 | return list.join(' ');
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94 | }
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95 |
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96 | return _classNames;
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97 | })();
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98 |
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99 | if (typeof module !== 'undefined' && module.exports) {
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100 | classNames.default = classNames;
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101 | module.exports = classNames;
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102 | } else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {
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103 |
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104 | define('classnames', [], function () {
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105 | return classNames;
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106 | });
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107 | } else {
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108 | window.classNames = classNames;
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109 | }
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110 | }());
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