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- // 19.1.2.1 Object.assign(target, source, ...)
- var $ = require('./$')
- , toObject = require('./$.to-object')
- , IObject = require('./$.iobject');
- // should work with symbols and should have deterministic property order (V8 bug)
- module.exports = require('./$.fails')(function(){
- var a = Object.assign
- , A = {}
- , B = {}
- , S = Symbol()
- , K = 'abcdefghijklmnopqrst';
- A[S] = 7;
- K.split('').forEach(function(k){ B[k] = k; });
- return a({}, A)[S] != 7 || Object.keys(a({}, B)).join('') != K;
- }) ? function assign(target, source){ // eslint-disable-line no-unused-vars
- var T = toObject(target)
- , $$ = arguments
- , $$len = $$.length
- , index = 1
- , getKeys = $.getKeys
- , getSymbols = $.getSymbols
- , isEnum = $.isEnum;
- while($$len > index){
- var S = IObject($$[index++])
- , keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S)
- , length = keys.length
- , j = 0
- , key;
- while(length > j)if(isEnum.call(S, key = keys[j++]))T[key] = S[key];
- }
- return T;
- } : Object.assign;
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