How do you angle a sprite towards another sprite?

[AustinKellar]

So I found out how to angle a sprite towards the cursor using angleToPointer, but is there a way to make a sprite face either another sprite or a set of x,y coordinates?

[Andromedus]

Phaser may have a built-in method for this somewhere, but personally I would just use a bit of maths.  Not tested but I think this should work:

objectSprite.rotation = Math.atan2(targetSprite.y - objectSprite.y, targetSprite.x - objectSprtie.x);