What is the reason for Typescript converting a null value of type interface to the string "null"?

I'm working on setting up the initial state for a dataStore in an Angular2 app and I have the following code snippet. The issue is that INIT_STATE.token is currently showing as "null" instead of just null.

export interface IAuthState{
  authenticated: boolean,
  token?: any
}

const INIT_STATE: IAuthState = {
  authenticated: localStorage.getItem('id_token') ? true : false,
  token: localStorage.getItem('id_token') ? localStorage.getItem('id_token') : null
}

Answer №1

Right after hitting the publish button, it dawned on me that a seemingly ridiculous problem was actually the culprit - for some mysterious reason, the string "null" ended up being saved in localStorage instead of deleting the item.

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