What is docx?
The docx npm package is a powerful library for creating and manipulating Microsoft Word documents programmatically. It allows developers to generate .docx files with various elements such as text, images, tables, and more, directly from their JavaScript or TypeScript code.
What are docx's main functionalities?
Creating a Simple Document
This feature allows you to create a simple Word document with text. The code sample demonstrates how to create a document with a single paragraph containing both regular and formatted text.
const { Document, Packer, Paragraph, TextRun } = require('docx');
const fs = require('fs');
const doc = new Document({
sections: [
{
properties: {},
children: [
new Paragraph({
children: [
new TextRun('Hello World!'),
new TextRun({
text: ' This is bold and underlined text.',
bold: true,
underline: {}
})
]
})
]
}
]
});
Packer.toBuffer(doc).then((buffer) => {
fs.writeFileSync('MyDocument.docx', buffer);
});
Adding Images
This feature allows you to add images to your Word document. The code sample demonstrates how to insert an image with specified dimensions into a document.
const { Document, Packer, Paragraph, ImageRun } = require('docx');
const fs = require('fs');
const doc = new Document({
sections: [
{
properties: {},
children: [
new Paragraph({
children: [
new ImageRun({
data: fs.readFileSync('path/to/image.png'),
transformation: {
width: 100,
height: 100
}
})
]
})
]
}
]
});
Packer.toBuffer(doc).then((buffer) => {
fs.writeFileSync('DocumentWithImage.docx', buffer);
});
Creating Tables
This feature allows you to create tables within your Word document. The code sample demonstrates how to create a table with two rows and two columns.
const { Document, Packer, Table, TableRow, TableCell, Paragraph } = require('docx');
const fs = require('fs');
const doc = new Document({
sections: [
{
properties: {},
children: [
new Table({
rows: [
new TableRow({
children: [
new TableCell({
children: [new Paragraph('Cell 1')]
}),
new TableCell({
children: [new Paragraph('Cell 2')]
})
]
}),
new TableRow({
children: [
new TableCell({
children: [new Paragraph('Cell 3')]
}),
new TableCell({
children: [new Paragraph('Cell 4')]
})
]
})
]
})
]
}
]
});
Packer.toBuffer(doc).then((buffer) => {
fs.writeFileSync('DocumentWithTable.docx', buffer);
});
Other packages similar to docx
officegen
officegen is another npm package that allows you to generate Microsoft Office documents, including Word, Excel, and PowerPoint files. Compared to docx, officegen offers a broader range of document types but may not have as many advanced features specifically for Word documents.
mammoth
mammoth is a library focused on converting .docx documents to HTML and plain text. While it doesn't offer the same document creation capabilities as docx, it is useful for extracting content from existing Word documents.
pizzip
pizzip is a low-level library for manipulating ZIP files, which can be used in conjunction with other libraries like docxtemplater to create and modify .docx files. It provides more control over the ZIP structure but requires more effort to use for document creation.