如何在typescript对象接口中键入字符串作为Object属性键？

Question

I define an interface - the relevant part is here:

      actors:{    
        name:{           // options (Object) is specific to each actor type
                        // see documentation at top of each actor
          factory:string,
          url:string,
          options:Object
        }
        //...
      }

I implement the interface as follows:

      actors:{
        'unitcube':{ 
          factory:'Unitcube',
          url:'../src/app/models/stage/actors/objects/unitcube',
          options:{wireframe:false, 
                color:'red', 
                opacity:0.9, 
                transform:{t:[0.0,2.0,-3.0001],e:[0.0,1.0,0.0],s:[1.0,3.0,1.0]}
          } 
        }
        //...
      }//actors

The interface passes tslint, however I receive a tslint/tsc error that the types of the interface and the implementation are different - in particular 'unitcube' and name.

How can I type-specify a list of string-named Objects? (ie how do I define 'name' in the actors part of the interface?)

Thanks.

Answer 1

interface IActors {
   actors: IActorType
}

interface IActorType {
  [name: string]: //so on and so forth
}

the interface defined in the question enforces the key to be literally 'name.' when implemented with 'unitcube' or any other actor's name, it is evaluated to be not equal to 'name.' [name: string] allows this key to be dynamic, so any actor name of type string can be used.