How to convert HTML to string?

Question

JavaScript

Hello.
I receive an element.

var container = document.getElementsByClassName('container')[0];

You need to cast this element to this type:

var container = document.getElementsByClassName('container')[0]; // '<div class="container">Something</div>'

How can this be done? That is, so that the function that will convert returns exactly the string in which there will be all the tags and text located in the container.

Answer 1

var container = document.getElementsByClassName('container')[0];
console.log(container.outerHTML);

Answer 2

container.outerHTML
Or container.innerHTML