优化：流媒体

liusuyi

2024-07-11 b1084891961232e3c697ea9fc52f127cdccffb6b

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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));