Почему оно не работает?

Question

fapchat @fapchat

JavaScript

Почему оно не работает?

Почему это

function compareSold(num1, num2) {
  return num1.sold - num2.sold;
 }

здесь

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title></title>
    <script type="text/javascript">
      var products = [ { name: "Grapefruit", calories: 170, color: "red", sold: 8200 },
 { name: "Orange", calories: 160, color: "orange", sold: 12101 },
 { name: "Cola", calories: 210, color: "caramel", sold: 25412 },
 { name: "Diet Cola", calories: 0, color: "caramel", sold: 43922 },
 { name: "Lemon", calories: 200, color: "clear", sold: 14983 },
 { name: "Raspberry", calories: 180, color: "pink", sold: 9427 },
 { name: "Root Beer", calories: 200, color: "caramel", sold: 9909 },
 { name: "Water", calories: 0, color: "clear", sold: 62123 }
 ];
 function compareSold(num1, num2) {
  return num1.sold - num2.sold;
 }
function printProducts(products) {
 for (var i = 0; i < products.length; i++) {
 console.log("Name: " + products[i].name +
 ", Calories: " + products[i].calories +
 ", Color: " + products[i].color +
 ", Sold: " + products[i].sold);
 }
}
products.sort(compareSold);
printProducts(products);
    </script>
  </head>
  <body>

  </body>
</html>

работает нормально, а здесь

<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8">
    <title></title>
    <script type="text/javascript">
      var products = [ { name: "Grapefruit", calories: 170, color: "red", sold: 8200 },
 { name: "Orange", calories: 160, color: "orange", sold: 12101 },
 { name: "Cola", calories: 210, color: "caramel", sold: 25412 },
 { name: "Diet Cola", calories: 0, color: "caramel", sold: 43922 },
 { name: "Lemon", calories: 200, color: "clear", sold: 14983 },
 { name: "Raspberry", calories: 180, color: "pink", sold: 9427 },
 { name: "Root Beer", calories: 200, color: "caramel", sold: 9909 },
 { name: "Water", calories: 0, color: "clear", sold: 62123 }
 ];

function compareName(num1, num2) {
  return num1.name - num2.name;
}
function compareCalories(colaA, colaB) {
  if (colaA.calories > colaB.calories) {
  return 1;
  } else if (colaA.calories === colaB.calories) {
  return 0;
  } else {
  return -1;
  }
}
function compareColor(colaA, colaB) {
  if (colaA.color > colaB.color) {
  return 1;
  } else if (colaA.color === colaB.color) {
  return 0;
  } else {
  return -1;
  }
}


function printProducts(products) {
 for (var i = 0; i < products.length; i++) {
 console.log("Name: " + products[i].name +
 ", Calories: " + products[i].calories +
 ", Color: " + products[i].color +
 ", Sold: " + products[i].sold);
 }
}

products.sort(compareName);
console.log("Products sorted by name:");
printProducts(products);

 products.sort(compareCalories);
console.log("Products sorted by calories:");
printProducts(products);

  products.sort(compareColor);
console.log("Products sorted by color:");
printProducts(products);
    </script>
  </head>
  <body>

  </body>
</html>

Я даже всякие консол логи удалял, лишь бы всё заработало...