Method fromArray

lib/array-set.js:23–29

* Static method for creating ArraySet instances from an existing array.

(aArray, aAllowDuplicates)

   * Static method for creating ArraySet instances from an existing array.
   */
  static fromArray(aArray, aAllowDuplicates) {
    const set = new ArraySet();
    for (let i = 0, len = aArray.length; i < len; i++) {
      set.add(aArray[i], aAllowDuplicates);
    }
    return set;
  }

  /**
   * Return how many unique items are in this ArraySet. If duplicates have been