增加了修改

feige

2023-12-05 45b19cb64db7a8e70ed1d25b16bfe0ca93576267

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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));