1 | var toString = Object.prototype.toString;
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9 |
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10 | module.exports = function kindOf(val) {
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11 | var type = typeof val;
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12 |
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13 |
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14 | if (type === 'undefined') {
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15 | return 'undefined';
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16 | }
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17 | if (val === null) {
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18 | return 'null';
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19 | }
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20 | if (val === true || val === false || val instanceof Boolean) {
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21 | return 'boolean';
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22 | }
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23 | if (type === 'string' || val instanceof String) {
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24 | return 'string';
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25 | }
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26 | if (type === 'number' || val instanceof Number) {
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27 | return 'number';
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28 | }
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29 |
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30 |
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31 | if (type === 'function' || val instanceof Function) {
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32 | if (typeof val.constructor.name !== 'undefined' && val.constructor.name.slice(0, 9) === 'Generator') {
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33 | return 'generatorfunction';
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34 | }
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35 | return 'function';
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36 | }
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37 |
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38 |
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39 | if (typeof Array.isArray !== 'undefined' && Array.isArray(val)) {
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40 | return 'array';
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41 | }
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42 |
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43 |
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44 | if (val instanceof RegExp) {
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45 | return 'regexp';
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46 | }
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47 | if (val instanceof Date) {
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48 | return 'date';
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49 | }
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50 |
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51 |
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52 | type = toString.call(val);
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53 |
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54 | if (type === '[object RegExp]') {
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55 | return 'regexp';
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56 | }
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57 | if (type === '[object Date]') {
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58 | return 'date';
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59 | }
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60 | if (type === '[object Arguments]') {
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61 | return 'arguments';
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62 | }
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63 | if (type === '[object Error]') {
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64 | return 'error';
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65 | }
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66 | if (type === '[object Promise]') {
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67 | return 'promise';
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68 | }
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69 |
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70 |
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71 | if (isBuffer(val)) {
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72 | return 'buffer';
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73 | }
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74 |
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75 |
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76 | if (type === '[object Set]') {
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77 | return 'set';
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78 | }
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79 | if (type === '[object WeakSet]') {
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80 | return 'weakset';
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81 | }
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82 | if (type === '[object Map]') {
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83 | return 'map';
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84 | }
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85 | if (type === '[object WeakMap]') {
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86 | return 'weakmap';
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87 | }
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88 | if (type === '[object Symbol]') {
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89 | return 'symbol';
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90 | }
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91 |
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92 | if (type === '[object Map Iterator]') {
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93 | return 'mapiterator';
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94 | }
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95 | if (type === '[object Set Iterator]') {
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96 | return 'setiterator';
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97 | }
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98 | if (type === '[object String Iterator]') {
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99 | return 'stringiterator';
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100 | }
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101 | if (type === '[object Array Iterator]') {
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102 | return 'arrayiterator';
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103 | }
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104 |
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105 |
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106 | if (type === '[object Int8Array]') {
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107 | return 'int8array';
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108 | }
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109 | if (type === '[object Uint8Array]') {
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110 | return 'uint8array';
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111 | }
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112 | if (type === '[object Uint8ClampedArray]') {
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113 | return 'uint8clampedarray';
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114 | }
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115 | if (type === '[object Int16Array]') {
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116 | return 'int16array';
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117 | }
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118 | if (type === '[object Uint16Array]') {
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119 | return 'uint16array';
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120 | }
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121 | if (type === '[object Int32Array]') {
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122 | return 'int32array';
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123 | }
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124 | if (type === '[object Uint32Array]') {
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125 | return 'uint32array';
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126 | }
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127 | if (type === '[object Float32Array]') {
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128 | return 'float32array';
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129 | }
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130 | if (type === '[object Float64Array]') {
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131 | return 'float64array';
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132 | }
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133 |
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134 |
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135 | return 'object';
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136 | };
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137 |
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138 |
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139 |
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140 |
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141 |
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142 |
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143 | function isBuffer(val) {
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144 | return val.constructor
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145 | && typeof val.constructor.isBuffer === 'function'
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146 | && val.constructor.isBuffer(val);
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147 | }
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