SoFunction
Updated on 2025-03-10

Markdown-it converts Markdown text parsing to HTML

Markdown-it is a powerful Markdown parser that supports a variety of Markdown syntax and can convert Markdown text into HTML. It can be quickly installed through npm and can be easily called in JavaScript projects. Markdown-it not only supports basic Markdown syntax, but also expands advanced functions such as tables and footnotes. It also allows custom configuration and use of plug-ins to enhance functions. In addition, it can be combined with front-end frameworks or editors to improve the efficiency and experience of document editing.

1. Introduction to markdown-it

markdown-it supports rich Markdown syntax, which can easily convert Markdown text to HTML format. It has a wide range of plug-ins and configuration options to make your document editing more flexible and versatile.

2. Markdown-it installation and use

Install markdown-it

You can install markdown-it through npm (package manager). Enter the following command on the command line:

npm install markdown-it

Once the installation is complete, you can introduce markdown-it into your project.

Using markdown-it

In JavaScript, you can use markdown-it in the following ways:

const markdownIt = require('markdown-it')();
const md = ('# Hello, markdown-it!');
(md);

Run the above code and you will see the following HTML output in the console:

<h1>Hello, markdown-it!</h1>

3. Introduction to the detailed usage and configuration of markdown-it

(I) Basic usage

markdown-it supports most standard Markdown syntax, such as titles, paragraphs, lists, links, pictures, etc. Here are some examples:

  • title:# Level 1 title、## Secondary title
  • Paragraph: Just enter the text directly
  • List: Use-or*The beginning represents an unordered list, and add the number.The beginning represents an ordered list
  • Link:[Link text]()
  • picture:![Picture Description](/)

(II) Extended usage

In addition to basic syntax, markdown-it also supports some extended syntax to make your documents more colorful. Here are some commonly used extension syntax:

  • Table: Use|Separate columns, use-Indicates the header
  • Footnote: Use[^Footnote]Add footnotes to use at the end of the document[^Footnote]: Footnote contentDefine footnote content
  • Task list: Add before list item[ ]or[x]Indicates that the task is not completed or has been completed

(III) Configuration Introduction

The configuration of markdown-it is powerful and flexible, and can meet different parsing needs. Here are the configuration options for markdown-it:

  1. Preset configuration

markdown-it provides preset configurations to quickly enable/disable common syntax rules and options. For example, you can use the "commonmark" mode to configure the parser to a strict CommonMark mode. The method to enable this mode is as follows:

var md = require('markdown-it')('commonmark');

The default configuration (if parameters are omitted) and all available options are enabled as follows:

var md = require('markdown-it')({
  html: true,   //Enable HTML tags in source code  linkify: true, // Automatically identify links  typographer: true // Enable some linguistic replacements and formats});
  1. Custom configuration

In addition to preset configuration, you can also customize the configuration according to your needs. For example, you canoptionsObject to enable or disable certain features:

var md = require('markdown-it')({
  html: false, // Disable HTML tags  xhtmlOut: false, // Don't use '/' to close single tags  breaks: true, // Convert two consecutive line breaks to `<br>` tag  // Other options...});
  1. Plugin

The scalability of markdown-it mainly comes from its rich plug-in ecosystem. You can add more features by installing and using plug-ins, such as supporting mathematical formulas, flowcharts, charts, etc.

// Introduce plug-insvar markdownIt = require('markdown-it')();
var plugin = require('markdown-it-plugin');

// Use plug-ins(plugin);

4. Use of markdown-it with other tools

markdown-it can be used in conjunction with other tools to improve your productivity. For example, you can combine markdown-it with front-end frameworks to convert Markdown text to HTML and render it directly on the page. In addition, you can also combine markdown-it with the editor to achieve the functions of previewing and editing Markdown documents in real time.

5. Summary

markdown-it has become a good assistant for Markdown document editing with its powerful parsing capabilities and rich configuration options. By mastering the basic syntax, extension syntax and configuration methods of markdown-it, you will be able to easily master document editing and improve work efficiency. I hope this article can help you better understand and use markdown-it and enjoy the fun of document editing!

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