优化

‘liusuyi’

2023-05-31 c3e4465b7ac9a90ecc00a58883fcf80c5c7beb81

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var global = require('../internals/global');
var isCallable = require('../internals/is-callable');
 
var WeakMap = global.WeakMap;
 
module.exports = isCallable(WeakMap) && /native code/.test(String(WeakMap));