What could be the reason for receiving a TS message stating "Property 'value' may not exist on type 'boolean'. Did you intend to use 'valueOf'?" while updating state using RTK in React?

When attempting to create a slice using Redux Toolkit within the Visual Studio Code editor, I encounter a TypeScript warning that states "Property 'value' may not exist on type 'boolean'. Did you mean 'valueOf'?" This occurs when trying to set a state value to boolean in the following way:

import {createSlice} from '@reduxjs/toolkit';

export const authSlice = createSlice({
    name: 'auth',
    initialState: false, // user is not logged-in
    reducers: {
        login: (state) => {state.value = true},
        logout: (state) => {state.value = false}
    }
});

Adding to my confusion, I am utilizing JavaScript instead of TypeScript. Can someone please point out what I might be misunderstanding or unexpectedly doing?

typescriptreduxreact-hooksreact-reduxredux-toolkit

Answer №1

In my opinion, in order for it to be functional, the starting point should be an object rather than just a boolean. You could consider using this approach instead:

startState: {
  status: true,
}

Answer №2

After taking into account FedToaster's recommendation and making the necessary adjustments, I was able to successfully resolve the issue:

import {createSlice} from '@reduxjs/toolkit';

export const authSlice = createSlice({
    name: 'auth',
    initialState: {value: false}, // indicates user is not logged-in
    reducers: { 
        login: state => {state.value = true},
        logout: state => {state.value = false}
    }
});

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