巡检日历

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2023-08-19 13337ce8ed144c11dd004c97c28f5b86f95543d2

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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));