Coding Challenge #4 - arrays for the tips and the totals

Tried 👏👏👏

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

const calcTip = function (billValue) {
  if (billValue >= 50 && billValue <= 300) {
    return billValue * 0.15
  } else {
    return billValue * 0.2
  }
}

for (let repetition = 0; repetition <= 9; repetition++) {
  tips.push(calcTip(bills[repetition]));
  totals.push(bills[repetition] + tips[repetition]);
}

console.log(tips);
console.log(totals);

 

Answer

const calcTip = function (billValue) {
  return billValue >= 50 && billValue <= 300 ? billValue * 0.15 : billValue * 0.2;
}
const bills = [22, 295, 176, 440, 37, 105, 10, 1100, 86, 52];
const tips = [];
const totals = [];

for (let i = 0; i < bills.length; i++) {
  const tip = calcTip(bills[i]);
  tips.push(tip);
  totals.push(tip + bills[i]);
}
console.log(bills, tips, totals);

// (10) [22, 295, 176, 440, 37, 105, 10, 1100, 86, 52] (10) [4.4, 44.25, 26.4, 88, 7.4, 15.75, 2, 220, 12.9, 7.8] (10) [26.4, 339.25, 202.4, 528, 44.4, 120.75, 12, 1320, 98.9, 59.8]

 

https://www.w3schools.com/jsref/jsref_push.asp

JavaScript Array push() Method

 

Bonus 1 - sum

const calcAverage = function (arr) {
  let sum = 0;
  for (let i = 0; i < arr.length; i++) {
    // sum = sum + arr[i];
    sum += arr[i];
  }
  console.log(sum);
}
calcAverage([2, 3, 5]);
// prints 10

 

Bonums 2 - average

const calcAverage = function (arr) {
  let sum = 0;
  for (let i = 0; i < arr.length; i++) {
    // sum = sum + arr[i];
    sum += arr[i];
  }
  return sum / arr.length;
}
console.log(calcAverage([2, 3, 5]));
// prints 3.3333333333333335