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'use strict'; |
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var numberIsNaN = function (value) { |
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return value !== value; |
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}; |
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module.exports = function is(a, b) { |
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if (a === 0 && b === 0) { |
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return 1 / a === 1 / b; |
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} |
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if (a === b) { |
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return true; |
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} |
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if (numberIsNaN(a) && numberIsNaN(b)) { |
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return true; |
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} |
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return false; |
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}; |
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