Approach 2 Framework/Library Integration (e.g., React)

Using a framework like React simplifies the development process by providing reusable components, state management, and a virtual DOM for efficient rendering. You can create separate components for the input text and preview container, making the code more modular and maintainable.

Steps to Build a MarkDown Previewer using ReactJS:

Step 1: Create a React app using the following command.

npx create-react-app markdown-previewer
cd markdown-previewer

Step 2: Install the react-markdown library to parse and render Markdown content.

npm install react-markdown

Step 3: Create two components: Editor for inputting Markdown content and Previewer for displaying the parsed Markdown.

Example: Below is an example of MarkDown Previewer using ReactJS.

CSS
.app {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

textarea {
  width: 45%;
  height: 80vh;
  padding: 10px;
  font-size: 16px;
  border: 1px solid #ccc;
}

.preview {
  width: 45%;
  height: 80vh;
  padding: 10px;
  border: 1px solid #ccc;
  overflow-y: auto;
}
JavaScript
// Create the main App component to render 
// both the Editor and Previewer components.
// App.js

import React, { useState } from 'react';
import Editor from './Editor';
import Previewer from './Previewer';
import './App.css';

function App() {
  const [markdown, setMarkdown] = useState('');

  return (
    <div className="app">
      <Editor markdown={markdown} setMarkdown={setMarkdown} />
      <Previewer markdown={markdown} />
    </div>
  );
}

export default App;
JavaScript
//Editor.js

import React from 'react';

function Editor({ markdown, setMarkdown }) {
  return (
    <textarea
      value={markdown}
      onChange={(e) => setMarkdown(e.target.value)}
      placeholder="Enter Markdown here..."
    />
  );
}

export default Editor;
JavaScript
// Previewer.js

import React from 'react';
import ReactMarkdown from 'react-markdown';

function Previewer({ markdown }) {
  return (
    <div>
      <h2>Preview</h2>
      <div className="preview">
        <ReactMarkdown>{markdown}</ReactMarkdown>
      </div>
    </div>
  );
}

export default Previewer;

Start your app using the following command:

npm start

Output:

Markdown Previewer Using React



Build a Markdown Previewer

The Markdown Previewer is a simple web application that allows users to input Markdown syntax and preview the rendered HTML output in real-time. This article will cover the implementation of a Markdown Previewer using HTML, CSS, and JavaScript.Markdown is a lightweight markup language that is commonly used for formatting text on the web.

  • Markdown is a lightweight markup language with plain-text formatting syntax. Common Markdown syntax includes headings, links, inline code, code blocks, lists, blockquotes, images, and emphasis (bold and italic text).
  • The Markdown syntax consists of simple formatting rules such as using # for headers, * or _ for italics, ** or __ for bold, and so on.
  • # Hello, Markdown!’

Table of Content

  • Vanilla JavaScript Implementation
  • Framework/Library Integration (e.g., React):

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Approach 1: Vanilla JavaScript Implementation

In this approach, you directly manipulate the DOM elements using JavaScript to capture user input and update the preview container. This approach is suitable for small-scale applications and provides more control over the implementation details....

Approach 2: Framework/Library Integration (e.g., React):

Using a framework like React simplifies the development process by providing reusable components, state management, and a virtual DOM for efficient rendering. You can create separate components for the input text and preview container, making the code more modular and maintainable....

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