You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
43 lines
829 B
43 lines
829 B
/*! |
|
* 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); |
|
};
|
|
|