Method terminalFields

src/document/forms/field-tree.ts:201–207

* Iterate over only terminal fields (those that hold values).

()

   * Iterate over only terminal fields (those that hold values).
   */
  *terminalFields(): Generator<TerminalField> {
    for (const field of this.fields) {
      if (field instanceof TerminalField) {
        yield field;
      }
    }
  }

  /**
   * Get all fields as an array.