1 | import { isBigNumber } from './is.js';
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6 |
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7 |
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8 |
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9 |
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10 |
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11 |
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12 |
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13 |
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14 | export function clone(x) {
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15 | var type = typeof x;
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16 |
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17 | if (type === 'number' || type === 'string' || type === 'boolean' || x === null || x === undefined) {
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18 | return x;
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19 | }
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20 |
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21 |
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22 | if (typeof x.clone === 'function') {
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23 | return x.clone();
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24 | }
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25 |
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26 |
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27 | if (Array.isArray(x)) {
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28 | return x.map(function (value) {
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29 | return clone(value);
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30 | });
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31 | }
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32 |
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33 | if (x instanceof Date) return new Date(x.valueOf());
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34 | if (isBigNumber(x)) return x;
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35 |
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36 | if (x instanceof RegExp) throw new TypeError('Cannot clone ' + x);
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37 |
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38 |
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39 | return mapObject(x, clone);
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40 | }
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41 |
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42 |
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43 |
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44 |
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45 |
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46 |
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47 |
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48 | export function mapObject(object, callback) {
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49 | var clone = {};
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50 |
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51 | for (var key in object) {
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52 | if (hasOwnProperty(object, key)) {
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53 | clone[key] = callback(object[key]);
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54 | }
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55 | }
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56 |
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57 | return clone;
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58 | }
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59 |
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60 |
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61 |
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62 |
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63 |
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64 |
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65 |
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66 | export function extend(a, b) {
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67 | for (var prop in b) {
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68 | if (hasOwnProperty(b, prop)) {
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69 | a[prop] = b[prop];
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70 | }
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71 | }
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72 |
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73 | return a;
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74 | }
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75 |
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76 |
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77 |
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78 |
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79 |
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80 |
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81 |
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82 | export function deepExtend(a, b) {
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83 |
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84 | if (Array.isArray(b)) {
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85 | throw new TypeError('Arrays are not supported by deepExtend');
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86 | }
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87 |
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88 | for (var prop in b) {
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89 |
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90 |
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91 | if (hasOwnProperty(b, prop) && !(prop in Object.prototype) && !(prop in Function.prototype)) {
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92 | if (b[prop] && b[prop].constructor === Object) {
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93 | if (a[prop] === undefined) {
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94 | a[prop] = {};
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95 | }
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96 |
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97 | if (a[prop] && a[prop].constructor === Object) {
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98 | deepExtend(a[prop], b[prop]);
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99 | } else {
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100 | a[prop] = b[prop];
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101 | }
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102 | } else if (Array.isArray(b[prop])) {
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103 | throw new TypeError('Arrays are not supported by deepExtend');
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104 | } else {
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105 | a[prop] = b[prop];
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106 | }
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107 | }
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108 | }
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109 |
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110 | return a;
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111 | }
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112 |
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113 |
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114 |
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115 |
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116 |
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117 |
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118 |
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119 |
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120 | export function deepStrictEqual(a, b) {
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121 | var prop, i, len;
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122 |
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123 | if (Array.isArray(a)) {
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124 | if (!Array.isArray(b)) {
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125 | return false;
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126 | }
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127 |
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128 | if (a.length !== b.length) {
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129 | return false;
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130 | }
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131 |
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132 | for (i = 0, len = a.length; i < len; i++) {
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133 | if (!deepStrictEqual(a[i], b[i])) {
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134 | return false;
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135 | }
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136 | }
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137 |
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138 | return true;
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139 | } else if (typeof a === 'function') {
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140 | return a === b;
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141 | } else if (a instanceof Object) {
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142 | if (Array.isArray(b) || !(b instanceof Object)) {
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143 | return false;
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144 | }
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145 |
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146 | for (prop in a) {
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147 |
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148 | if (!(prop in b) || !deepStrictEqual(a[prop], b[prop])) {
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149 | return false;
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150 | }
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151 | }
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152 |
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153 | for (prop in b) {
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154 |
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155 | if (!(prop in a) || !deepStrictEqual(a[prop], b[prop])) {
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156 | return false;
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157 | }
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158 | }
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159 |
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160 | return true;
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161 | } else {
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162 | return a === b;
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163 | }
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164 | }
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165 |
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166 |
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167 |
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168 |
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169 |
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170 |
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171 | export function deepFlatten(nestedObject) {
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172 | var flattenedObject = {};
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173 |
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174 | _deepFlatten(nestedObject, flattenedObject);
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175 |
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176 | return flattenedObject;
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177 | }
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178 |
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179 | function _deepFlatten(nestedObject, flattenedObject) {
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180 | for (var prop in nestedObject) {
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181 | if (hasOwnProperty(nestedObject, prop)) {
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182 | var value = nestedObject[prop];
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183 |
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184 | if (typeof value === 'object' && value !== null) {
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185 | _deepFlatten(value, flattenedObject);
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186 | } else {
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187 | flattenedObject[prop] = value;
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188 | }
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189 | }
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190 | }
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191 | }
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192 |
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193 |
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194 |
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195 |
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196 |
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197 |
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198 | export function canDefineProperty() {
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199 |
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200 | try {
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201 | if (Object.defineProperty) {
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202 | Object.defineProperty({}, 'x', {
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203 | get: function get() {}
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204 | });
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205 | return true;
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206 | }
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207 | } catch (e) {}
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208 |
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209 | return false;
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210 | }
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211 |
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212 |
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213 |
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214 |
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215 |
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216 |
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217 |
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218 |
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219 |
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220 |
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221 | export function lazy(object, prop, valueResolver) {
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222 | var _uninitialized = true;
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223 |
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224 | var _value;
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225 |
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226 | Object.defineProperty(object, prop, {
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227 | get: function get() {
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228 | if (_uninitialized) {
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229 | _value = valueResolver();
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230 | _uninitialized = false;
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231 | }
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232 |
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233 | return _value;
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234 | },
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235 | set: function set(value) {
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236 | _value = value;
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237 | _uninitialized = false;
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238 | },
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239 | configurable: true,
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240 | enumerable: true
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241 | });
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242 | }
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243 |
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244 |
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245 |
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246 |
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247 |
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248 |
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249 |
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250 |
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251 | export function traverse(object, path) {
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252 | if (path && typeof path === 'string') {
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253 | return traverse(object, path.split('.'));
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254 | }
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255 |
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256 | var obj = object;
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257 |
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258 | if (path) {
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259 | for (var i = 0; i < path.length; i++) {
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260 | var key = path[i];
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261 |
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262 | if (!(key in obj)) {
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263 | obj[key] = {};
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264 | }
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265 |
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266 | obj = obj[key];
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267 | }
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268 | }
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269 |
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270 | return obj;
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271 | }
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272 |
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273 |
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274 |
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275 |
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276 |
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277 |
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278 | export function hasOwnProperty(object, property) {
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279 | return object && Object.hasOwnProperty.call(object, property);
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280 | }
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281 |
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282 |
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283 |
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284 |
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285 |
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286 |
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287 |
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288 |
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289 |
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290 |
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291 |
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292 |
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293 |
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294 | export function isLegacyFactory(object) {
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295 | return object && typeof object.factory === 'function';
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296 | }
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297 |
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298 |
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299 |
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300 |
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301 |
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302 |
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303 |
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304 | export function get(object, path) {
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305 | if (typeof path === 'string') {
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306 | if (isPath(path)) {
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307 | return get(object, path.split('.'));
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308 | } else {
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309 | return object[path];
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310 | }
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311 | }
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312 |
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313 | var child = object;
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314 |
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315 | for (var i = 0; i < path.length; i++) {
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316 | var key = path[i];
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317 | child = child ? child[key] : undefined;
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318 | }
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319 |
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320 | return child;
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321 | }
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322 |
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323 |
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324 |
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325 |
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326 |
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327 |
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328 |
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329 |
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330 |
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331 |
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332 | export function set(object, path, value) {
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333 | if (typeof path === 'string') {
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334 | if (isPath(path)) {
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335 | return set(object, path.split('.'), value);
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336 | } else {
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337 | object[path] = value;
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338 | return object;
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339 | }
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340 | }
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341 |
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342 | var child = object;
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343 |
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344 | for (var i = 0; i < path.length - 1; i++) {
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345 | var key = path[i];
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346 |
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347 | if (child[key] === undefined) {
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348 | child[key] = {};
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349 | }
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350 |
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351 | child = child[key];
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352 | }
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353 |
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354 | if (path.length > 0) {
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355 | var lastKey = path[path.length - 1];
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356 | child[lastKey] = value;
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357 | }
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358 |
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359 | return object;
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360 | }
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361 |
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362 |
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363 |
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364 |
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365 |
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366 |
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367 |
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368 |
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369 | export function pick(object, properties, transform) {
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370 | var copy = {};
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371 |
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372 | for (var i = 0; i < properties.length; i++) {
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373 | var key = properties[i];
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374 | var value = get(object, key);
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375 |
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376 | if (value !== undefined) {
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377 | set(copy, key, transform ? transform(value, key) : value);
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378 | }
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379 | }
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380 |
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381 | return copy;
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382 | }
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383 | /**
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384 | * Shallow version of pick, creating an object composed of the picked object properties
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385 | * but not for nested properties
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386 | * @param {Object} object
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387 | * @param {string[]} properties
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388 | * @return {Object}
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389 | */
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390 |
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391 | export function pickShallow(object, properties) {
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392 | var copy = {};
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393 |
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394 | for (var i = 0; i < properties.length; i++) {
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395 | var key = properties[i];
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396 | var value = object[key];
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397 |
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398 | if (value !== undefined) {
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399 | copy[key] = value;
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400 | }
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401 | }
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402 |
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403 | return copy;
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404 | }
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405 | export function values(object) {
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406 | return Object.keys(object).map(key => object[key]);
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407 | }
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408 |
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409 | function isPath(str) {
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410 | return str.indexOf('.') !== -1;
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411 | } |
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