HTML for Front-end Interviews/

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Navigating the DOM

Navigating the DOM

This lesson will cover essential testing on DOM navigation in terms of both theory and code analysis. Let's begin!

We'll cover the following...

Question 1:

Technical Quiz
1.

Select all the node properties that can be used to navigate between nodes.

A.

parentNode

B.

childNodes[nodenumber]

C.

firstChild

D.

lastChild

E.

nextSibling

F.

previousSibling

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Question 2:

Study the following code:

<html>
<body>
<h1 id="heading">Educative - Interactive Courses</h1>
<p id="para"></p>
<script>
document.getElementById("para").innerHTML = document.getElementById("heading").innerHTML;
</script>
</body>
</html>

Child Nodes and Node Values

1.

What does the above code do?

A.

retrieves the text of an <h1> element and copies it into a <p> element

B.

retrieves the text of a <p> element and copies it into an <h1> element

C.

retrieves the id of an <h1> element and assigns it to a <p> element

D.

retrieves the id of a <p> element and assigns it to an <h1> element

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Question 3:

Study the ...