更新

aijinhui

2024-02-23 2df696b07d0ffdf7829d4d9cd3da23162dec8799

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var nativeFunctionToString = require('./_function-to-string');
var WeakMap = require('./_global').WeakMap;
 
module.exports = typeof WeakMap === 'function' && /native code/.test(nativeFunctionToString.call(WeakMap));