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19 lines
369 B
19 lines
369 B
"use strict"; |
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/* https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.is */ |
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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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} else if (a === b) { |
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return true; |
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} else 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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