43 lines
829 B
JavaScript
43 lines
829 B
JavaScript
/*!
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* array-unique <https://github.com/jonschlinkert/array-unique>
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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 unique(arr) {
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if (!Array.isArray(arr)) {
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throw new TypeError('array-unique expects an array.');
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}
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var len = arr.length;
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var i = -1;
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while (i++ < len) {
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var j = i + 1;
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for (; j < arr.length; ++j) {
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if (arr[i] === arr[j]) {
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arr.splice(j--, 1);
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}
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}
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}
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return arr;
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};
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module.exports.immutable = function uniqueImmutable(arr) {
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if (!Array.isArray(arr)) {
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throw new TypeError('array-unique expects an array.');
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}
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var arrLen = arr.length;
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var newArr = new Array(arrLen);
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for (var i = 0; i < arrLen; i++) {
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newArr[i] = arr[i];
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}
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return module.exports(newArr);
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};
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