Method _insertBlock

external/.scrollLibs.js:16601–16607

(block, index)

    this._insertBlock(this._makeBlock(line, subparticles))
  }
  _insertBlock(block, index) {
    if (index !== undefined) index = index < 0 ? this.length + index : index
    const newParticle = this._getParserPool().createParticle(this, block, index)
    if (this._cueIndex) this._makeCueIndex(index)
    this.clearQuickCache()
    return newParticle
  }
  _insertLines(lines, index = this.length) {
    const parser = this.constructor
    const newParticle = new parser()