Feature request: Ability to set value type for scope values imported from attributes

[stsvilik]

In my Directives I would love to be able to specify that value coming from an attribute is of type boolean or number or perhaps even Date. Ideally I see it as an enhancement to your syntax where when you set scope hash you can also specify the type. For example:

scope: {
  myNumber: '#@', //Where # would attempt to cast value to Number
  myBoolean: '!@', //Where ! would attempt to cast value to Boolean
}

Rational for this is that very often I end up doing something like $scope.myValue === 'true' instead of just testing for its intended type.

[Narretz]

Interesting. Somehow related, I often have boilerplate in observers that need to cast stuff to boolean. Wiht scope bindings I find it less useful, or better: I find it out of scope fo angular to include a type system.

[shahata]

For two way binding ('=') there is no need to cast since the scope variable will always be with the same type as the bound variable. This is only relevant for interpolated ('@') scope variables, which are always of string type. Or am I missing something?

[stsvilik]

You're right I made a mistake, it should have been for one-way bound values '@' not '='. Apologies!
It is in fact to tackle values that always come as strings.

Corrected example.