修改了代码

feige

1 天以前 f43ef0c77c6f437bd0f7459d75168e6f77e334bb

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var global = require('../internals/global');
var isCallable = require('../internals/is-callable');
 
var WeakMap = global.WeakMap;
 
module.exports = isCallable(WeakMap) && /native code/.test(String(WeakMap));