Method wrap

tfjs-data/src/util/ring_buffer.ts:50–56

* Map any index into the range 0 <= index < 2*capacity.

(index: number)

   * Map any index into the range 0 <= index < 2*capacity.
   */
  protected wrap(index: number) {
    // don't trust % on negative numbers
    while (index < 0) {
      index += this.doubledCapacity;
    }
    return index % this.doubledCapacity;
  }

  protected get(index: number) {
    if (index < 0) {