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26 lines
666 B
26 lines
666 B
"use strict"; |
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var isPrototype = require("../prototype/is"); |
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var dateValueOf = Date.prototype.valueOf; |
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module.exports = function (value) { |
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if (!value) return false; |
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try { |
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// Sanity check (reject objects which do not expose common Date interface) |
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if (typeof value.getFullYear !== "function") return false; |
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if (typeof value.getTimezoneOffset !== "function") return false; |
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if (typeof value.setFullYear !== "function") return false; |
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// Ensure its native Date object (has [[DateValue]] slot) |
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dateValueOf.call(value); |
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} catch (error) { |
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return false; |
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} |
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// Ensure it hosts valid date |
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if (isNaN(value)) return false; |
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return !isPrototype(value); |
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};
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