Why are my component bindings undefined in its controller?

Question

I\'m writing a simple angular component. I\'m passing a parameter as a binding and display its value on the screen. All works fine: I can see the parameter being displayed on th

Answer 1

The keyword this doesn't seem to works with arrow function, this works with

controller: function() {
   alert('contact id from controller: ' + this.contactId);
}

When using arrow function, this, seems to refer to the window object because

An arrow function does not create it's own this context, rather it captures the this value of the enclosing context