How to rotate one image in a canvas?

Question

I am making an HTML5 canvas game, and I wish to rotate one of the images.

var link = new Image();
link.src=\'img/link.png\';
link.onload=function(){
    ctx.         


        

Answer 1

I ended up having to do:

ctx.save();
ctx.translate(x,y);
ctx.rotate(-this.angle + Math.PI/2.0);
ctx.translate(-x, -y); 
ctx.drawImage(this.daggerImage,x,y,20,20);
ctx.restore();