[JavaScript] Working With Strings part 2

const airline = 'Korean Air';

console.log(airline.toLowerCase());
console.log(airline.toUpperCase());

// Fix capitalization in name
const passenger = 'jOnAS'; // Jonas
const passengerLower = passenger.toLowerCase();
const passengerCorrect =
  passengerLower[0].toUpperCase() + passengerLower.slice(1);
console.log(passengerCorrect);

const passenger01 = 'jAYdEn'; // Jayden
const passenger01Lower = passenger01.toLowerCase();
const passenger01Correct =
  passenger01Lower[0].toUpperCase() + passenger01Lower.slice(1);
console.log(passenger01Correct);

// Comparing email
const email = 'hello@jonas.io';
const loginEmail = '    Hello@jonas.Io \n';

// const lowerEmail = loginEmail.toLowerCase();
// const trimmedEmail = lowerEmail.trim();
// console.log(trimmedEmail);

const normalizedEmail = loginEmail.toLowerCase().trim();
console.log(normalizedEmail);
console.log(email === normalizedEmail);

// replacing
const priceGB = '288,97£';
const priceUS = priceGB.replace('£', '$').replace(',', '.');
console.log(priceUS);

const announcement =
  'All passengers come to boarding door 23, Boarding door 23!';

console.log(announcement.replace('door', 'gate'));
console.log(announcement.replaceAll('door', 'gate'));
console.log(announcement.replace(/door/g, 'gate'));

//Booleans
const plane = 'Airbus A320neo';
console.log(plane.includes('A320'));
console.log(plane.includes('Boeing'));
console.log(plane.startsWith('Air'));
console.log(plane.startsWith('Aib'));
console.log(plane.startsWith('Airb'));

if (plane.startsWith('Airbus') && plane.endsWith('neo')) {
  console.log('Part of the NEW Airbus family');
}

// Practice exercise
const checkBaggage = function (items) {
  const baggage = items.toLowerCase();
  if (baggage.includes('knife') || baggage.includes('gun')) {
    console.log('You are NOT allowed on board');
  } else {
    console.log('Welcome aboard!');
  }
};
checkBaggage('I have a laptop, some Food, and a pocket Knife');
checkBaggage('Socks and camera');
checkBaggage('Got some snacks and a gun for protection');