Method get

src/Range.js:53–57

(index, notSetValue)

  }

  get(index, notSetValue) {
    return this.has(index)
      ? this._start + wrapIndex(this, index) * this._step
      : notSetValue;
  }

  includes(searchValue) {
    const possibleIndex = (searchValue - this._start) / this._step;