/*!

* 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;

};