/TypeScript/Typescript switch on object type

Typescript switch on object type

interface Action {}

class SpecificAction implements Action {
  kind: "specific";
  payload?: any;
}

class ToggleAction implements Action {
  kind: "toggle";
  toggle: boolean;
}

let action: SpecificAction | ToggleAction;
switch (action.kind) {
  case "specific":
    console.log(action.payload) // it works 
    break;
  case "toggle":
    console.log(action.toggle) // it works 
    break;        
}

Source: stackoverflow.com

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