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JavaScript JavaScript and the DOM Making Changes to the DOM Set Inline Styles with the style Property

Posted by Katarzyna Wójtowicz
Katarzyna Wójtowicz
Courses Plus Student 4,842 Points

Cannot read properties of null (reading 'addEventListener')

I used your script from Downloads ("3 - Set Inline Style") . I saved changes in my Workspace and loaded the page. There is an error in the Console :( I don't know what's wrong. Can you please help me?

2 Answers

Katarzyna Wójtowicz
PLUS
Katarzyna Wójtowicz
Courses Plus Student 4,842 Points
Katarzyna Wójtowicz
Katarzyna Wójtowicz
Courses Plus Student 4,842 Points

I prepared a short video to show the error https://www.loom.com/share/2844462b15304dc495c27c8396278118

Rohald van Merode
seal-mask
STAFF
.a{fill-rule:evenodd;}techdegree
Rohald van Merode
Treehouse Staff
Rohald van Merode
.a{fill-rule:evenodd;}techdegree
Rohald van Merode
Treehouse Staff

Hey Katarzyna Wójtowicz 👋

Looks like there's something wrong in the workspace for this specific video in that it that doesn't completely match with the video. In the workspace the .btn-main element doesn't exist in the DOM. To fix this you'll want to update the button element on line 16 of the index.html file to have a class of btn-main instead of an id 🙂

Sorry for the confusion there, I'll make sure that the workspace will be updated accordingly!