text: import { CHANGE_INPUT, ADD_ITEM, DELETE_ITEM, GET_LIST } from './actionTypes'
  
  
  const defaultState = {
    inputValue: '',
    list:[]
  }
  export default (state = defaultState, action)=> {
    if(action.type === CHANGE_INPUT){
      let newState = JSON.parse(JSON.stringify(state))
      newState.inputValue = action.value
      return newState 
    }
    if(action.type === ADD_ITEM){
      let newState = JSON.parse(JSON.stringify(state))
      newState.list.push(newState.inputValue)
      newState.inputValue=''
      return newState 
    }
    if(action.type === DELETE_ITEM){
      let newState = JSON.parse(JSON.stringify(state))
      newState.list.splice(action.index,1)
      return newState 
    }
    if(action.type === GET_LIST){
      let newState = JSON.parse(JSON.stringify(state))
      newState.list = action.data
      return newState
    }
    return state
  }