// all enumerable object keys, includes symbolsvargetKeys=require('./_object-keys');vargOPS=require('./_object-gops');varpIE=require('./_object-pie');module.exports=function(it){varresult=getKeys(it);vargetSymbols=gOPS.f;if(getSymbols){varsymbols=getSymbols(it);varisEnum=pIE.f;vari=0;varkey;while(symbols.length>i)if(isEnum.call(it,key=symbols[i++]))result.push(key);}returnresult;};