Make an array with every character on keyboard

I want to make an array containing all the letters and numbers on the keyboard (+ !, @, #, $, %, &, etc.) via code, without declaring it. Is there any way to do this in js?

>Solution :

This will give characters that are displayable on the screen.

let characters = [];

for (let i=32; i<127; i++)
  characters.push( String.fromCharCode(i) );