Input autofocus attribute

Question

I have places in my code where I have this:

I would like to be able to use it like

Answer 1

You can do this with the built-in ngAttr attribute bindings.

The autofocus attribute will be added if SOME_SCOPE_VARIABLE is defined (even if it's false), and will be removed if it's undefined. So I force falsy values to be undefined.

$scope.SOME_SCOPE_VARIABLE = someVar || undefined;