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Redux-toolkit:狀態(tài)是 createSlice 減速器內(nèi)的代理

Redux-toolkit:狀態(tài)是 createSlice 減速器內(nèi)的代理

元芳怎么了 2023-07-20 14:51:37
我正在嘗試在切片減速器內(nèi)的狀態(tài)數(shù)組中追加/更新一些數(shù)據(jù),但是當(dāng)我嘗試對我感興趣的狀態(tài)數(shù)組進(jìn)行操作時(shí),我只得到了一個 javascript 代理console.log。.projects這是怎么回事(我做錯了什么)?import { createSlice } from '@reduxjs/toolkit';const initialState = {  projects: [],};const projectsSlice = createSlice({  name: 'projectsSlice',  initialState: { ...initialState },  reducers: {    addProject(state, action) {      const { project } = action.payload;      const newProjects = [project, ...state.projects];      console.group('add project');      console.log('project: ', project);      console.log('state projects: ', state.projects);      console.log('newProjects: ', newProjects);      console.groupEnd();      state.projects = newProjects;    },    setProjects(state, action) {      const { projects } = action.payload;      state.projects = projects;    },    removeProject(state, action) {      const { projectId } = action.payload;      const newProjects = [...state.projects].filter((project) => project.id !== projectId);      state.projects = newProjects;    },    updateProject(state, action) {      const { project } = action.payload;      const projectIndex = state.projects.findIndex((stateProject) => stateProject.id === project.id);      const newProjects = [...state.projects].splice(projectIndex, 1, project);      console.group('updateProject');      console.log('project: ', project);      console.log('projectIndex: ', projectIndex);      console.log('state projects: ', state.projects);      console.log('newProjects: ', newProjects);      console.groupEnd();      state.projects = newProjects;    },  },});export const { addProject, removeProject, updateProject, setProjects } = projectsSlice.actions;export default projectsSlice.reducer;
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2 回答

?
慕標(biāo)琳琳

TA貢獻(xiàn)1830條經(jīng)驗(yàn) 獲得超9個贊

代理是您可以在該減速器中改變狀態(tài)并在您的狀態(tài)中獲得不可變副本的原因 - 但瀏覽器在記錄代理方面確實(shí)很糟糕。

根據(jù)文檔,您可以使用currentRTK&immer 的導(dǎo)出:


const slice = createSlice({

? name: 'todos',

? initialState: [{ id: 1, title: 'Example todo' }],

? reducers: {

? ? addTodo: (state, action) => {

? ? ? console.log('before', current(state))

? ? ? state.push(action.payload)

? ? ? console.log('after', current(state))

? ? },

? },

})


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反對 回復(fù) 2023-07-20
?
慕娘9325324

TA貢獻(xiàn)1783條經(jīng)驗(yàn) 獲得超4個贊

您需要使用當(dāng)前


import { current } from '@reduxjs/toolkit'

這樣,您就可以達(dá)到當(dāng)前狀態(tài)并使用它們,之后,您可以在減速器中發(fā)送返回以返回新數(shù)據(jù)。


威爾看起來像這樣:


const referralSlicer = createSlice({

name: 'referral',

initialState: {

  referrals: [],

  currentCard: 0,

} as IReferralSlicer,

reducers: {

  addReferrals(state, { payload }) {

    return {

      referrals: [...state.referrals, payload],

    }

  },

  deleteReferral(state, { payload }) {

    const currentState = current(state)


    return {

      ...currentState,

      referrals: currentState.referrals.splice(payload, 1),

    }

  },

  setCurrentCard(state, { payload }) {

    return {

      referrals: state.referrals,

      currentCard: payload,

    }

  },

},

})


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反對 回復(fù) 2023-07-20
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