Deepak – 05-50 Aug 31

Question

Hello everyone, i'm trying to understand the else part of the code. 
reducers: {
    addToCart: (state, { payload }) = {
      const isItemExist = state.cartItems.find(
        (item) = item.id === payload.id
      );
      if (!isItemExist) {
        state.cartItems = [...state.cartItems, { ...payload, quantity: 1 }];
      } else {
        state.cartItems = state.cartItems.map((item) = {
          if (item.id === payload.id) {
            return { ...item, quantity: item.quantity + 1 };
          } else {
            return item;
          }
        });
      }
      state.quantity++;
      state.totalAmount += payload.price;
    },
In my understanding, If i was suppose to addToCart i would push the item to cartItem but here i am returning the item. can anyone explain me how does this work ?

Deepak – 05-50 Aug 31

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