Method unique

src/ArrayUtil.js:92–94

* Removes duplicate values from an array. * @param {array} array * @return {mixed} New array with unique items.

(array)

   * @return {mixed} New array with unique items.
   */
  static unique (array) {
    return array.filter((element, index) => array.indexOf(element) === index)
  }

  /**
   * Orders array elements randomly using Fisher–Yates modern shuffle algorithm.