Checking for a collision between two objects

I am trying to call an action when two object collide. I have tried to check for a collision between my player & enemyPlayer like so:

function update ()
  console.log(, enemyPlayer));

It returns false all the time even when I approch the enemyPlayer with my player.

I was using this API docs.

Any help will be appreciate it!

Hey Manuel, check out how to implement collision callbacks here.