How can I draw on canvas with 2d array

Question

Array 2d

Answer 1

I'm not sure if you are wanting to make games but this demonstrates what you are asking for. "This is not my code". https://code.sololearn.com/W9BB0i330wVN
The source code comes from http://technologies4.me/articles/tile-map-canvas-javascript-a1/canvas-tile-map-source-code-p2/

Answer 2

I don't really understand here gameMap[((y*mapW)+x)] in the code

Answer 3

There is a video on that website. He explains everything.

Answer 4

Join to learn canvas. Just started

https://youtu.be/VBa-7NuJlAI