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JavaScript jQuery Basics Understanding jQuery Events and DOM Traversal What is Traversal?

Michael Williams
PLUS
Michael Williams
Courses Plus Student 8,059 Points
Posted by Michael Williams
Michael Williams
Courses Plus Student 8,059 Points

Why did the button move in between the spoilers when clicked? Treasure didn't explain why, only how to fix it.

In this video — https://teamtreehouse.com/library/what-is-traversal — about DOM traversal, there are two spoilers hidden with their own buttons. When you click the button, it's supposed to reveal it's corresponding spoiler. However, when Treasure clicked on the button, both disappeared and a button appeared in between the spoilers. She showed how to fix it using traversal, but didn't explain why it wasn't functioning properly. Can anyone explain why? Thanks!

1 Answer

handy christian
handy christian
2,899 Points
handy christian
handy christian
2,899 Points

It was because the function says: when we click the event (the button that we click) all the span will reveal, while the other button we didn't click still shown and reveal between or under the spoiler. That's why we better use $(event.target).prev() or $(event.target).next() rather than $('.spoiler').show() because it will not show all of the span.

Let me know your opinion about this :D