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Return Objects

As we talked about earlier, in JavaScript, you can only return a single value from a function. So, when you want to return multiple values, you just return an object that contains those values.

function doAllTheMath(x, y) {
  const sum = x + y;
  const difference = x - y;
  const product = x * y;
  const quotient = x / y;
  return {
    sum,
    difference,
    product,
    quotient,
  };
}

const results = doAllTheMath(10, 5);
console.log(results.sum);
// 15
console.log(results.difference);
// 5
console.log(results.product);
// 50
console.log(results.quotient);
// 2

Assignment

Fix the bug with the calculateCampaignMetrics so that it returns all the defined metrics correctly.