responsive-sketchpad.js
function redraw () {
            clearCanvas();

            for (var i = 0; i < that.strokes.length; i++) {
                drawStroke(that.strokes[i]);
            }
        }
function redraw () {
            clearCanvas();

            for (var i = 0; i < that.strokes.length; i++) {
                drawStroke(that.strokes[i]);
            }
        }
function redraw ( ) { clearCanvas ( ) ; for ( var i = 0 ; i < that . strokes . length ; i ++ ) { drawStroke ( that . strokes [ i ] ) ; } }
Redraw the canvas
Redraw the canvas