How do I add an element to array in reducer of React native redux?

Question

How do I add elements in my array arr[] of redux state in reducer? I am doing this-

import {ADD_ITEM} from \'../Actions/UserActions\'
const ini         


        

Answer 1

If you need to insert into a specific position in the array, you can do this:

case ADD_ITEM :
    return { 
        ...state,
        arr: [
            ...state.arr.slice(0, action.pos),
            action.newItem,
            ...state.arr.slice(action.pos),
        ],
    }