transform a ArrayBuffer to an array

Graphics.prototype.print = function() {
  for (var y=0;y<this.getHeight();y++)
    console.log(new Uint8Array(this.buffer,this.getWidth()*y,this.getWidth()).toString());
};
var g = Graphics.createArrayBuffer(8,8,8);
g.setColor(1);
g.drawString("X",0,0);
g.print();

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|   __|___ ___ ___ _ _|_|___ ___
|   __|_ -| . |  _| | | |   | . |
|_____|___|  _|_| |___|_|_|_|___|
          |_| http://espruino.com
 1v95.43 Copyright 2017 G.Williams
>1,0,1,0,0,0,0,0
1,0,1,0,0,0,0,0
0,1,0,0,0,0,0,0
1,0,1,0,0,0,0,0
1,0,1,0,0,0,0,0
0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0
0,0,0,0,0,0,0,0

I added .toString because now it outputs new Uint8Array([0,0,0,0,0,0,0,0]) as new Uint8Array(8) to save space.

And the output is different because the default font has changed.