Where is the error?

Question

I want a red rectangle constantly moving around the screen
https://code.sololearn.com/W4AAFNAXFS1q/?ref=app

Answer 1

Stefano De Angelis

Write JS code inside this function

window.onload = function () {

}

Answer 2

Stefano De Angelis

Not the phone issue.

JavaScript loads first before loading html contents.

Answer 3

Stefano De Angelis

SoloLearn is different than web

Answer 4

A͢J Thank you, on computer the code worked fine. I think phones are slower so they need to load the canvas correctly before working

Answer 5

A͢J On PC it worked without the function, so..