es6

// math.js - Named exports
export const PI = 3.14159;
export const E = 2.71828;

export function add(a, b) {
  return a + b;

// Array destructuring
const numbers = [1, 2, 3, 4, 5];
const [first, second] = numbers;
console.log(first, second); // 1 2

// Skip elements

// ES6 Class syntax
class Person {
  constructor(name, age) {
    this.name = name;
    this.age = age;
  }