content-docx-lists-manually-inserting-bullet-characters-e-g-in-paragr-428df59e

THEN Avoid manual bullet strings. Define numbering configuration with reference and LevelFormat.BULLET, then use Paragraph({ numbering: { reference: "bullets", level: 0 } }). Same reference continues numbering; different reference restarts.

const doc = new Document({
  numbering: {
    config: [{
      reference: "bullets",
      levels: [{ level: 0, format: LevelFormat.BULLET, text: "•", alignment: AlignmentType.LEFT,
        style: { paragraph: { indent: { left: 720, hanging: 360 } } } }]
    }]
  },
  sections: [{
    children: [
      new Paragraph({ numbering: { reference: "bullets", level: 0 },
        children: [new TextRun("Item")] })
    ]
  }]
});