data property

The data property allows you to read the contents of an element's text node, including commented out text.

Syntax

element.data;

Let's output the text of the first child element using the data property:

<body>
	text1 <!-- comment1 -->
	text2 <!-- comment2 -->
</body>

let elem = document.body.firstChild;
console.log(elem.data);

The code execution result:

text1

And now let's display the comment of the first child element:

<body>
	text1 <!-- comment1 -->
	text2 <!-- comment2 -->
</body>

let elem = document.body.firstChild;
let comment = elem.nextSibling;
console.log(comment.data);

The code execution result:

comment1