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JavaScript JavaScript and the DOM Responding to User Interaction The Event Object

Posted by yuchiu
yuchiu
6,982 Points

why capitalize tagName('LI') in the if statement?

why capitalize tagName('LI') in the if statement? In 5:30, why does is the tag name capitalized instead of lower case? Thank you for you help.

2 Answers

Amir F
Amir F
9,095 Points
Amir F
Amir F
9,095 Points

Hi!

Because tagName returns the element name in the uppercase form. From MDN docs:

In XML (and XML-based languages such as XHTML), tagName preserves case. On HTML elements in DOM trees flagged as HTML documents, tagName returns the element name in the uppercase form.

Wes Thompson
Wes Thompson
4,928 Points
Wes Thompson
Wes Thompson
4,928 Points

It would have been helpful to have had an explanation of this in the video.

Jonathan Aldas
Jonathan Aldas
2,421 Points
Jonathan Aldas
Jonathan Aldas
2,421 Points

if you put console.log(event.target.tagName); the output to the console is "LI"