Is nodeValue the same as value?

Value. str is a string containing the value of the current node, if any. For the document itself, nodeValue returns null . For text, comment, and CDATA nodes, nodeValue returns the content of the node.

What is the difference between firstChild and firstElementChild?

Definition and Usage The difference between this property and firstElementChild, is that firstChild returns the first child node as an element node, a text node or a comment node (depending on which one’s first), while firstElementChild returns the first child node as an element node (ignores text and comment nodes).

What’s the difference between textContent and innerHTML?

Differences from innerHTML innerHTML returns HTML, as its name indicates. Sometimes people use innerHTML to retrieve or write text inside an element, but textContent has better performance because its value is not parsed as HTML. Moreover, using textContent can prevent XSS attacks.

How do you get the first child of the parent element?

To get the first child element of a specified element, you use the firstChild property of the element:

1. let firstChild = parentElement.firstChild;
2. let content = document.getElementById(‘menu’); let firstChild = content.firstChild.nodeName; console.log(firstChild);
3. #text.

Which is the first child of a node?

More “Try it Yourself” examples below. The firstChild property returns the first child node of the specified node, as a Node object.

What happens to the value of the nodevalue property?

If the node is an element node, the nodeValue property will return null. Note: If you want to return the text of an element, remember that text is always inside a Text node, and you will have to return the Text node’s node value ( element .childNodes [0].nodeValue).

Which is faster first child.nodevalue or innerHTML?

Performance of the .firstNode.nodeValue method can be several times faster than the .innerHTML method, because assignment to firstNode.nodeValue makes no attempt to parse any potential HTML or make any DOM changes.

What’s the difference between firstchild and firstelementchild?

The difference between this property and firstElementChild, is that firstChild returns the first child node as an element node, a text node or a comment node (depending on which one’s first), while firstElementChild returns the first child node as an element node (ignores text and comment nodes).