Why show my console of cann't read style property?

Question

These codes work in Google Chrome but But this app does not work.

Code hear:-
hr.style.transform = `rotateZ(${(hh)+(mm/12)}deg)`;

Showing problem:-
Cann't read style property of null

Answer 1

Welcome to Sololearn. Please use the search bar 🔍 to avoid duplicates and link your code. Have fun coding.

https://www.sololearn.com/discuss/2220537/?ref=app
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