How to change htm h1 from nodejs

To change the h1 tag in an HTML document using Node.js, you can follow these steps:

  1. Import the necessary modules: You need to import the built-in fs module, which allows you to read and write files, and the cheerio module, which provides a jQuery-like syntax to manipulate HTML.

  2. Read the HTML file: Use the fs module to read the HTML file and store its contents in a variable.

  3. Load the HTML into cheerio: Pass the HTML contents to the cheerio module's load() function to create a jQuery-like object.

  4. Modify the h1 tag: Use the cheerio object to select the h1 tag and modify its contents.

  5. Save the changes: Convert the modified HTML back to a string using the cheerio object's html() function and save it to a variable.

  6. Write the changes to the HTML file: Use the fs module to write the modified HTML string back to the original HTML file.

Here is an example code snippet that demonstrates these steps:

const fs = require('fs');
const cheerio = require('cheerio');

// Step 1: Import necessary modules

// Step 2: Read the HTML file
const html = fs.readFileSync('path/to/html/file.html', 'utf-8');

// Step 3: Load the HTML into cheerio
const $ = cheerio.load(html);

// Step 4: Modify the h1 tag
$('h1').text('New Heading');

// Step 5: Save the changes
const modifiedHtml = $.html();

// Step 6: Write the changes to the HTML file
fs.writeFileSync('path/to/html/file.html', modifiedHtml);

Please note that you need to replace 'path/to/html/file.html' with the actual path to your HTML file.