31 lines
550 B
JavaScript
31 lines
550 B
JavaScript
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/*!
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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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