Method duplicateBrick

src/Pipe.js:231–240

* Inserts a copy of given brick into the pipe. * @param {Brick} brick Pipe brick to be copied * @param {number} index Index at which the copy should be inserted, inserts * the copy after the original brick if omitted * @return {Pipe} Fluent interface

(brick, index = null)

   * @return {Pipe} Fluent interface
   */
  duplicateBrick (brick, index = null) {
    if (!this.containsBrick(brick)) {
      throw new Error('Brick is not part of the pipe.')
    }
    if (index === null) {
      index = this._bricks.indexOf(brick)
    }
    this.spliceBricks(index, 0, [brick.copy()])
    return this
  }

  /**
   * Moves brick to given index.