help: this code uses json and js but it does not work

Question

the cirlce must move and change it's colour instantly, but it work only one function a time, any suggestions?
https://code.sololearn.com/W1JVi2qMFfey/?ref=app

Answer 1

If you write two window.onload, the compiler will consider the last one. window.onload will override any attached event listeners. Here is the fix:
https://code.sololearn.com/W9zddRf4VXEI/?ref=app