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27 lines
792 B
27 lines
792 B
"use strict"; |
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var isPrototype = require("../prototype/is"); |
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var isArray; |
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if (typeof Array.isArray === "function") { |
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isArray = Array.isArray; |
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} else { |
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var objectToString = Object.prototype.toString, objectTaggedString = objectToString.call([]); |
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isArray = function (value) { return objectToString.call(value) === objectTaggedString; }; |
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} |
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module.exports = function (value) { |
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if (!isArray(value)) return false; |
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// Sanity check (reject objects which do not expose common Array interface) |
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if (!hasOwnProperty.call(value, "length")) return false; |
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try { |
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if (typeof value.length !== "number") return false; |
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if (typeof value.push !== "function") return false; |
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if (typeof value.splice !== "function") return false; |
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} catch (error) { |
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return false; |
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} |
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return !isPrototype(value); |
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};
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