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  1. {"ast":null,"code":"'use strict'; // 19.1.2.1 Object.assign(target, source, ...)\n\nvar DESCRIPTORS = require('./_descriptors');\n\nvar getKeys = require('./_object-keys');\n\nvar gOPS = require('./_object-gops');\n\nvar pIE = require('./_object-pie');\n\nvar toObject = require('./_to-object');\n\nvar IObject = require('./_iobject');\n\nvar $assign = Object.assign; // should work with symbols and should have deterministic property order (V8 bug)\n\nmodule.exports = !$assign || require('./_fails')(function () {\n var A = {};\n var B = {}; // eslint-disable-next-line no-undef\n\n var S = Symbol();\n var K = 'abcdefghijklmnopqrst';\n A[S] = 7;\n K.split('').forEach(function (k) {\n B[k] = k;\n });\n return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;\n}) ? function assign(target, source) {\n // eslint-disable-line no-unused-vars\n var T = toObject(target);\n var aLen = arguments.length;\n var index = 1;\n var getSymbols = gOPS.f;\n var isEnum = pIE.f;\n\n while (aLen > index) {\n var S = IObject(arguments[index++]);\n var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);\n var length = keys.length;\n var j = 0;\n var key;\n\n while (length > j) {\n key = keys[j++];\n if (!DESCRIPTORS || isEnum.call(S, key)) T[key] = S[key];\n }\n }\n\n return T;\n} : $assign;","map":null,"metadata":{},"sourceType":"script"}