Method convertSubparticlesToDelimited

external/.scrollLibs.js:17468–17471

(delimiter = Utils._chooseDelimiter(this.subparticlesToString()))

    return this.setSubparticles(particle.toDelimited(delimiter))
  }
  convertSubparticlesToDelimited(delimiter = Utils._chooseDelimiter(this.subparticlesToString())) {
    // todo: handle newlines!!!
    return this.setSubparticles(this.toDelimited(delimiter))
  }
  addUniqueRowsToNestedDelimited(header, rowsAsStrings) {
    if (!this.length) this.appendLine(header)
    // todo: this looks brittle