Help!! Style of property null in Java Script?

Question

https://code.sololearn.com/WCx6JsBSMl2A/?ref=app

Answer 1

First of all ids are case sensitive so write java instead of java

Second it will be
style.display = "block"

And you also need to hide JavaScript
With the same method

Answer 2

Your JS is getElementById('Java')

but in your HTML, you don't have an element with id of Java

Answer 3

Write ' java' in small or capital letter in both HTML and js codes.

Answer 4

Thank You for find my small mistake
❣
Now fixed !

Answer 5

Happy coding you 2 :) ,,

This Project completed :p

And check my code and suggest how can i improve this more ?

Answer 6

Glad to know you got it Sajid Ali

Happy coding 😉😉