优化

‘liusuyi’

2024-03-14 2f4ad6f5ddbb212b7f6dd846eaa02618681da92c

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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));