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30 lines
550 B
30 lines
550 B
/*! |
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* arr-union <https://github.com/jonschlinkert/arr-union> |
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* |
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* Copyright (c) 2014-2015, Jon Schlinkert. |
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* Licensed under the MIT License. |
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*/ |
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'use strict'; |
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module.exports = function union(arr) { |
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var len = arguments.length; |
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var res = [], i = 0; |
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while (len--) { |
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var arg = arrayify(arguments[i++]); |
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for (var j = 0; j < arg.length; j++) { |
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var ele = arg[j]; |
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if (res.indexOf(ele) === -1) { |
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res.push(ele); |
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} |
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} |
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} |
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return res; |
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}; |
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function arrayify(val) { |
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return Array.isArray(val) ? val : [val]; |
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}
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