Method indexOf

lib/array-set.js:71–77

* What is the index of the given string in the array? * * @param String aStr

(aStr)

   * @param String aStr
   */
  indexOf(aStr) {
    const idx = this._set.get(aStr);
    if (idx >= 0) {
      return idx;
    }
    throw new Error('"' + aStr + '" is not in the set.');
  }

  /**
   * What is the element at the given index?