I am working on something where I want to use this HTML code that is present in a string variable after passing it to some other function.
var foo = "<html><body><div class='myClass'><div id='myId'>Hello World!!</div></div></body></html>";
>Solution :
You can use cheerio.js in this case.
var cheerio = require('cheerio');
var foo = "<html><body><div class='myClass'><div id='myId'>Hello World!!</div></div></body></html>"
const $ = cheerio.load(foo);
$('div#myId').text('Hello there!');
$('div#myId').addClass('newClass');
$.html();
//=> <html><body><div class='myClass'><div id='myId'>Hello World!!</div></div></body></html>