[TIL]2022-0118 (TUE)

📖 TIL

---

[JavaScript]

• While 반복문 (for문 과의 차이, 용법)
• for문 사용 연습

const bills = [22,295,176,440,37,105,10,1100,86,52];
const tips = [];
const totals = [];

const calcTip = function(bill) {
    return bill >=50 && bill <= 300 ? bill* 0.15 : bill* 0.2;
}

for(let i = 0; i < bills.length; i++) {
        const tip = calcTip(bills[i])
        tips.push(tip);
        totals.push(bills[i]+tip);
    }
    
let sum = 0;
const calcAverage = function(arr) {
    for(let i=0 ; i<arr.length; i++) {
        // sum = sum + arr[i];
        sum += arr[i];
    }
    return sum / arr.length;
}

calcAverage(totals);