未定义不是对象（评估）-角度

Question

I am passing data a from one component to another component in my application but i keep getting the error. I am trying to pass the object types from this.loggedInGames to advanced of play_game which is binding to an input in my html.

error

undefined is not object(evaluating this.loggedInGames.types) .

Below is my code

component

 constructor(){
     this.play_game.advanced = this.loggedInGames.types
     this.loggedInGames = JSON.parse(localStorage.getItem('loggedInGames'));
 }

 play_game = {
    advanced : "",
    amateur : ""                
 }

html

<input name="amateur" [(ngModel)]="play_game.advanced" />

Answer 1

Order should be changed, You are trying to access from a not initialized object.

 this.loggedInGames = JSON.parse(localStorage.getItem('loggedInGames'));
 this.play_game.advanced = this.loggedInGames.types;