export interface IAppState{

   myNumber: number;

}



export const INITIAL_STATE: IAppState = {

  myNumber: 0

}



export function reducer(state,action){

  

  if(action.type == INCREMENT){

     

    let num:number[] = state.myNumber;

    let num1:number = num.length + 1;

   

    return Object.assign({},...state,{

      myNumber: state.myNumber + 1

    })

  } else {

    return state;

  }

}