Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript and the DOM (Retiring) Traversing the DOM Using parentNode to Traverse Up the DOM

need help on the parent.node.

line 12 in the video mark 4:15. now i understand that the parent element of the button is the <li> tag in this case. im confused what its actually doing.. so someone just clarify me about the part of the if condition code block.

1 Answer

Steven Parker
Steven Parker
231,236 Points

The event listener is attached to the div around the whole list, so the handler will run when you click anything inside it. The "if" makes sure the that click was on a button before doing anything else.