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// Use fields to include dynamic text
import * as fs from "fs";import { Bookmark, Document, Packer, Paragraph, SimpleField, TextRun } from "docx";
const doc = new Document({    creator: "Me",    sections: [        {            properties: {},            children: [                new Paragraph({                    children: [                        new TextRun("This document is called "),                        new SimpleField("FILENAME", "My Document.docx"),                        new TextRun(", was created on "),                        new SimpleField('CREATEDATE  \\@ "d MMMM yyyy"'),                        new TextRun(" by "),                        new SimpleField("AUTHOR"),                    ],                }),                new Paragraph({                    children: [                        new TextRun("The document has "),                        new SimpleField("NUMWORDS", "34"),                        new TextRun(" words and if you'd print it "),                        new Bookmark({                            id: "TimesPrinted",                            children: [new TextRun("42")],                        }),                        new TextRun(" times two-sided, you would need "),                        new SimpleField("=INT((TimesPrinted+1)/2)"),                        new TextRun(" sheets of paper."),                    ],                }),            ],        },    ],});
Packer.toBuffer(doc).then((buffer) => {    fs.writeFileSync("My Document.docx", buffer);});