Arrow Function ES6

// Arrow function with two arguments 
const sum = (firstParam, secondParam) => { 
  return firstParam + secondParam; 
}; 
console.log(sum(2,5)); // Prints: 7 
 
// Arrow function with no arguments 
const printHello = () => { 
  console.log('hello'); 
}; 
printHello(); // Prints: hello
 
// Arrow functions with a single argument 
const checkWeight = weight => { 
  console.log(`Baggage weight : ${weight} kilograms.`); 
}; 
checkWeight(25); // Prints: Baggage weight : 25 kilograms.