Why this ctx is not working?

Question

ctx.fillStyle = "#FF0000";
ctx.fillRect(10,10, 100, 100);

ctx.rotate( (Math.PI / 180) * 25); //rotate 25 degrees.

ctx.fillStyle = "#0000FF";
ctx.fillRect(10,10, 100, 100);

Answer 1

Did you create the ctx variable?
Did you get any error?

Please link your complete code here.

Answer 2

I dont know how.Can you give me the complete code