yz3456
2024-06-11 b439336f0e404d9d9aebd800fb5ad00d8b20210d
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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));