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linwenling

2023-07-18 ef6a6d70620baa2ce2e3d0ea9b5c76a76debd6dd

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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));