Day 2: Function Expressions & Arrow Functions

Daily Objective

Master function expressions and the modern ES6 arrow function syntax (=>).

1. Arrow Functions

// Traditional Declaration
function add(a, b) {
  return a + b;
}

// Arrow Function
const addArrow = (a, b) => a + b; // implicit return

const square = x => x * x; // single parameter needs no parentheses
console.log(square(5)); // 25

Daily Hands-on Practice (70%)

1. Convert 3 traditional functions into one-line arrow functions.
2. Log results to verify behavior.