增加了代码

feige

2025-12-02 d539b7f289ba8887ccfdc11c06fe154ff5fb8974

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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));