// Adults example: Get the names of all adults in a list of people
const people = [
  { name: "Alice", age: 30 },
  { name: "Bob", age: 15 },
  { name: "Charlie", age: 35 },
  { name: "David", age: 21 },
  { name: "Eve", age: 12 }
];

//With Map and Filter
let adults = people.filter((p) => p.age >= 18).map((p) => p.name);
console.log("MapFilter:", adults);

//With For each
adults = [];
for (p of people) {
  if (p.age >= 18) adults.push(p.name);
}
console.log("ForEach", adults);

//With lambda and return keyword
adults = people.reduce((listOfAdults, p) => {
  if (p.age >= 18) listOfAdults.push(p.name);
  return listOfAdults;
}, []);
console.log("Reduce:", adults);

// #######################################################################
// Intro example

const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];

//With Regular Functions
let sum = numbers.reduce(function (total, n) {
  return total + n;
}, 0);
// console.log(sum);

//With lambda and return keyword
sum = numbers.reduce((total, n) => {
  return total + n;
}, 0);
// console.log(sum);

//With lambda and without return keyword
sum = numbers.reduce((total, n) => total + n, 0);
// console.log(sum);