ekrem-aktas

const basket = [
  { name:"apple", type: "fruit" }, 
  { name:"broccoli", type: "vegetable" }
];

// Add prices to each food in the basket
const basketWithPrices = basket.reduce((acc, food) => acc.concat({ ...food, price: getPrice(food) }), []);

// But Array.map is better for it
const basketWithPrices = basket.map(food => ({ ...food, price: getPrice(food)}));

ekrem-aktas

const basket = [
  { name:"apple", type: "fruit" }, 
  { name:"broccoli", type: "vegetable" }
];

// Array.reduce can be used to filter fruits
const fruits = basket.reduce((acc, food) => food.type === "fruit" ? acc.concat(food) : acc, []);

// But Array.filter is better for it
const fruits = basket.filter(food => food.type === "fruit");

ekrem-aktas

const basket = [
  { name:"apple", type: "fruit", calories: 52 }, 
  { name:"broccoli", type: "vegetable", calories: 45 },
  { name:"banana", type: "fruit", calories: 89 }
];

// Try to understand acc without looking at the last line
const { avgCalories } = basket.reduce((acc, food) => {
  if (food.type !== "fruit"){
    return acc;