7 lines
258 B
JavaScript
7 lines
258 B
JavaScript
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var global = require('../internals/global');
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var nativeFunctionToString = require('../internals/function-to-string');
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var WeakMap = global.WeakMap;
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module.exports = typeof WeakMap === 'function' && /native code/.test(nativeFunctionToString.call(WeakMap));
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