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

Why does he write LI instead of li?

can you explain me why he typed LI in stead of li?

1 Answer

Steve Hunter
Steve Hunter
Treehouse Moderator 57,657 Points

Hi there,

The tagName method returns the name of the tag in capital letters when used on an HTML DOM. For an XML DOM tree it returns the tag name as typed. Documentation


Do you know why?

so i just have to always type that in caps lock?

Steve Hunter
Steve Hunter
Treehouse Moderator 57,657 Points

Yep - you need to compare it to the uppercase version of the HTML tag, without the angle brackets. So <li> is returned by tagName as a string of "LI", a <div> is returned as "DIV" etc.

but can i write in lower case if i do == instead of === ?

ehh, dont have time

@Dskellth that's not how you learn...

It doesn't matter. I tried using strictly equals (===) with lower case 'li'. Still doesn't work. The returned tag name is always in the canonical uppercase form.