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zhangnaisong

2024-04-28 ba6b259982b4a115ab2b751a08522215dc557f1c

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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));