funcPr-practice.html

const cart = [
    {item:"노트북", price:1200000,quantity:1},
    {item:"마우스", price:35000,quantity:2},
    {item:"키보드", price:89000,quantity:1}
];

let totalPrice=0;
for(let i=0;i<cart.length;i++){
    totalPrice+=cart[i].price*cart[i].quantity
}
console.log(`Total Price: ${totalPrice}`);
totalPrice=0;
cart.forEach(
    a=>totalPrice+=a.price*a.quantity
);
console.log(`Total Price: ${totalPrice}`);
totalPrice=0;
totalPrice=cart.reduce(
    (a,b)=>(a+b.price*b.quantity),0
);
console.log(`Total Price: ${totalPrice}`);
totalPrice=0;
const itemTotals=cart.map(
    a=>({item:a.item,
        total:a.price*a.quantity})
);
console.log('제품별 금액: ',itemTotals);
const names=['alice','bob','charlie'];

const uppercasedNames=names.map(n=>n.toUpperCase());
console.log(`upperCaseNames = ${uppercasedNames}`);

const capitalStartNames=names.map(n=>n[0].toUpperCase()+n.slice(1));
console.log(`capitalStartNames = ${capitalStartNames}`);