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@miniu/core-js

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Standard library

github.com/zloirock/core-js

zloirock/core-js

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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));