1 var global = require('./_global')
2 , core = require('./_core')
3 , LIBRARY = require('./_library')
4 , wksExt = require('./_wks-ext')
5 , defineProperty = require('./_object-dp').f;
6 module.exports = function(name){
7 var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
8 if(name.charAt(0) != '_' && !(name in $Symbol))defineProperty($Symbol, name, {value: wksExt.f(name)});