完善通讯录

Tcsm

2023-08-29 48b191b57b42f1b570f5ff8841dd38137fd250e5

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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));