解决了245、246、247bug

yz3456

2024-04-10 3a3913a98d2b2394990ec62387834360adeb8b58

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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));