Is it possible to use these keyboard event listeners without using an input field, and to call specific functions based on the k

Question

I am trying to make a Tetris game without buttons, just keyboard controls, however, I am having difficulties doing this without an input field like demonstrated here:
https://www.w3schools.com/jsref/event_onkeypress.asp

Here is my code:
https://code.sololearn.com/WcT7LGC7moHS/#html
Ignore the comments and code under the body tag.

Answer 1

Very nice game btw.

But that won't work on mobiles and tablets since they need an input field to pop up the soft-keyboard

Answer 2

I appreciate the compliment, however, this is not my code. I am simply trying to make the gameplay faster and more authentic to modern Tetris by using keyboard controls. I can't take credit for someone else's code. That's not right.