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Code Refactoring

BEFORE
function calculateTotal(items) {
  let total = 0;
  for (let i = 0; i < items.length; i++) {
    total += items[i].price * items[i].quantity;
  }
  return total;
}
AFTER
const calculateTotal = (items) => {
  return items.reduce((total, item) => {
    return total + (item.price * item.quantity);
  }, 0);
};
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