Click Event on JS

Hello, friends!!

This is a simple (and probably a silly) question, but I'd like to create a condition if a button is clicked, without binding the click event to a function, as normally used.

Below, a simple example: I'd like to skip a step if the "Yes" button is clicked:

if(stepNumber == 1)
{
$scope.view.wdg['labelStep'].text = 'Is the light on?'

if($scope.view.wdg.['buttonYes'].click) //this is where I'm stuck at. The 'click' event is not called by the ".click" syntax, since it doesn't seem to accept it. 
{
stepNumber = 3 //if the user clicks in the "Yes" button, it would skip the next step from 2 to 3.
}
}

This is probably a simple syntax error!