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‘liusuyi’

2023-05-30 211ff834d1bd389498b21ea7e11c2b10a57409d8

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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));