mirror of https://github.com/jkjoy/sunpeiwen.git
5 lines
216 B
JavaScript
5 lines
216 B
JavaScript
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var nativeFunctionToString = require('./_function-to-string');
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var WeakMap = require('./_global').WeakMap;
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module.exports = typeof WeakMap === 'function' && /native code/.test(nativeFunctionToString.call(WeakMap));
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