When to use square brackets [ ] in directives @Inputs and when not?

Question

I\'m confused a little.

See this simple directive:

 @Directive({
      selector: \'[myDirective]\'
    })
    export class MyDirective {

      priva         


        

Answer 1

The brackets tell Angular to evaluate the template expression. If you omit the brackets, Angular treats the string as a constant and initializes the target property with that string. It does not evaluate the string!

Don't make the following mistake:

check: https://angular.io/docs/ts/latest/guide/template-syntax.html#!#property-binding