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authorruki <waruqi@gmail.com>2018-11-08 00:38:48 +0800
committerruki <waruqi@gmail.com>2018-11-07 21:53:09 +0800
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treec459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/array-unique/index.js
parent2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff)
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+/*!
+ * array-unique <https://github.com/jonschlinkert/array-unique>
+ *
+ * Copyright (c) 2014-2015, Jon Schlinkert.
+ * Licensed under the MIT License.
+ */
+
+'use strict';
+
+module.exports = function unique(arr) {
+ if (!Array.isArray(arr)) {
+ throw new TypeError('array-unique expects an array.');
+ }
+
+ var len = arr.length;
+ var i = -1;
+
+ while (i++ < len) {
+ var j = i + 1;
+
+ for (; j < arr.length; ++j) {
+ if (arr[i] === arr[j]) {
+ arr.splice(j--, 1);
+ }
+ }
+ }
+ return arr;
+};
+
+module.exports.immutable = function uniqueImmutable(arr) {
+ if (!Array.isArray(arr)) {
+ throw new TypeError('array-unique expects an array.');
+ }
+
+ var arrLen = arr.length;
+ var newArr = new Array(arrLen);
+
+ for (var i = 0; i < arrLen; i++) {
+ newArr[i] = arr[i];
+ }
+
+ return module.exports(newArr);
+};