Convert html to word javascript

HTML Conversion Word Javascript: To achieve simple document format conversion

With the rapid development of the Internet and electronic technology, document processing has become more common and more convenient. Whether you are downloading documents from the Internet or editing documents in an office environment, converting between different formats has become a task that must be completed.

Among them, the most common conversion between document formats is the conversion between HTML and Word. HTML, as a hypertext markup language, is often used in web design, while Word is the most widely used document processing tool in personal offices.

In this article, we will explore how to use Javascript to realize the function of converting HTML to Word, and share some practical experience and some practical skills.

1. The difference between HTML and Word

Before we start discussing how to convert HTML to Word, we need to understand some differences between HTML and Word.

HTML is text-based. It uses tags to represent different elements and styles. These tags can be written in a text editor or web development software and finally saved in the form of files.

Word is based on WYSIWYG, which means it is a WYSIWYG editor with a rich user interface and document formatting tools. Word can generate rich text styles and layouts, and supports many other advanced features, such as automatic numbering, automated tables, and a formula editor, etc.

Due to the essential differences between the two, converting HTML to Word requires many formatting and structural adjustments.

2. Methods for converting HTML to Word

The methods for converting HTML to Word are mainly divided into two categories: manual conversion and programming automatic conversion. Manual conversion requires manually copying and pasting HTML content into Word. While this is a viable solution, it takes a lot of time and effort, and the conversion results are often not as expected.

On the contrary, the automatic conversion method can be realized through programming language, which can greatly improve work efficiency and quality. Among them, Javascript has a wide range of applications, both in the Web front-end and back-end, and can help us achieve conversion to and from HTML and Word formats.

Here, we will focus on how to use Javascript to convert HTML files to Word documents.

(1) Use JsZip library for packaging

First, we need to download and introduce the JsZip library to generate Word documents. JsZip is a Javascript library for creating and reading zip files, which can help us package multiple files into one file.

(2) Create a Word document template

It is difficult to create a standard Word document, but in order to save time and energy, we can create a Word document template that contains what we want The style and structure of the setting.

Word documents are composed of XML and other binary files. We only need to extract the XML files of Word to create templates for editing. This step can be achieved by packaging an empty Word file and viewing the XML content.

(3) Replace text content and set style

Once we have a Word document template, we can use Javascript to open it and replace the text content and style. We can use Document Object Models (DOM) to maintain the style and structure of the document, or use predefined styles in Word documents.

(4) Export Word file

Create a new Zip file and save the template file and replaced content into it, and then name it in .docx file format.

3. Sample Code

The following is a simple Javascript code example that demonstrates how to convert HTML to Word. We will use HTML5 and ES6 syntax, and the code needs to be placed in a browser that supports these latest technologies to run.

// 创建一个JSZip实例
let zip = new JSZip();

// 从一个URL加载一个HTML文件
fetch('https://www.example.com/example.html')
    .then((res) => {
        return res.text();
    })
    .then((html) => {
        // 创建Word文档模板
        let template = jsZipUtils.getBinaryContent('template.docx', (error, content) => {
            if (error) {
                throw error;
            }
            else {
                let zip = new JSZip(content);
            }
        });

        // 将HTML转换为纯文本
        let text = html.replace(/<[^>]*>/g, '');

        // 使用正则表达式替换Word文档中的CSS样式，并将其保存
        template.file('word/styles.xml', template.file('word/styles.xml').asText().replace(/<w:rPr></w:rPr>/gi, '<w:rPr><w:vertAlign w:val="superscript" /></w:rPr>'));

        // 使用正则表达式替换Word文档中的标记，并将其添加到新的Word文档中
        template.file('word/document.xml', template.file('word/document.xml').asText().replace(/[.*?]/g, text));

        // 将新的Word文档保存到本地
        zip.generateAsync({type: 'blob'}).then((content) => {
            saveAs(content, 'example.docx');
        });
    });

The above is some summary and practical experience of this article. I hope it can help you realize the function of converting HTML to Word and improve work efficiency and quality.

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