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/*!
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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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