How to change the property of an object of this level in Redux?

Question

React

There is a state with such nesting level

const state = {
    a: "1",
    b: "2",
    items:{
        item1: {
           key1.1: 'value1.1'
           key1.1: 'value1.2'
},
           item2: {
           key2.1: 'value2.1'
           key2.1: 'value2.2'
},
    }
};

Let's say I need to reset the value 2.1 of the item2 object, which is in items, how to do this without losing the rest of the data?

did so, but is it correct?

case "CLEAR_PROJECT_ERRORS": {
    const newState = state;
    newState.items[action.payload.object][action.payload.name] = "";

    console.log("%c%s", "color: yellow;", "object",
        newState.items[action.payload.object][action.payload.object] = "");
    return newState

  }

Answer 1

The documentation has an article on this topic
https://redux.js.org/recipes/structuring-reducers/...