here is my cartSlice.js code

import { createSlice } from "@reduxjs/toolkit";

const cartSlice = createSlice({
    name: 'items',
    initialState: {
        items: []
    }, 
    
    reducers: {
        addItem(state, action) {
            console.log(state.items.filter(item => item.id === action.payload.id))
            console.log(state.items.filter(item => item.id === action.payload.id) != [])
            if (true) {
                let item = action.payload[0]
                let count = action.payload[1]
                state.items.push({...item, count})
        }
            else {
                console.log('asdas') //somelogic
            }

        },
        removeItem(state, action) {
            state.items = state.items.filter(item => item.id !== action.payload)
        }
        
    }
});

export const {addItem, removeItem} = cartSlice.actions;
export default cartSlice.reducer;

here is where i take action

import {React} from 'react'
import { addItem } from '/store/cartSlice'
import { useDispatch } from 'react-redux'
import { useState} from 'react'

export default function ProductPage() {
  let { state } = useLocation()
  let item = state.item
  const [count, setCount ]= useState(1)
  const dispatch = useDispatch()
  const addTask = () => dispatch(addItem([item, count]))
  return (
    <>
      <div className={classes.info}>
        <h2 >{item.title}</h2>
        <span className={classes.price}>{item.price}</span>
        <div className={classes.quantity}>
          <button onClick={() => setCount(count-1)}
          className={classes.quantityButton}>-</button>
          {count}
          <button onClick={() => setCount(count+1)}
          className={classes.quantityButton}>+</button>
        </div> 
        <button className={classes.addToCartButton} 
        onClick={addTask}>Add to cart</button>
      </div>
    </>
  )
}

here is console enter image description here
item is an object with keys title, id an some more
guys why does the second log in addItem returns true
first log returns an empty array in console

i have only started working with redux and dont understand how to work with state

so i wanted to check if the item from action is actually in state.items but it isnt working