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n immer producer returned a new value and modified its draft.

Testy Tern answered on November 7, 2022 Popularity 8/10 Helpfulness 2/10

answer n immer producer returned a new value *and* modified its draft.

n immer producer returned a new value and modified its draft.

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//Error: An immer producer returned a new value *and* modified its draft. Either return a new value *or* modify the draft
//I have my reducer

//this gives error:
const userAuthSlice = createSlice({
    name: "userAuth",
    initialState: {
        token: '',
    },
    reducers: {
        setToken: (state, action) => state.token = action.payload.test,
    },
});

//use this:
const userAuthSlice = createSlice({
    name: "userAuth",
    initialState: {
        token: '',
    },
    reducers: {
        setToken: (state, action) => { state.token = action.payload.test}, // <<= Change Here
    },
});

//error happens cuz when the action is called state.toekn is changing and also returning something in the reducers...jus tuse an {} to prevent this.

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript n producer

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Contributed on Nov 07 2022

Testy Tern

0 Answers Avg Quality 2/10

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n immer producer returned a new value and modified its draft.

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