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linwenling

2023-07-25 7ca95d0b01940011b16f03683e59ab4f18fff4e0

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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));