JavaScript

Functions

const calculateSum = (number1, number2) => {
  console.log("Calculating...");

  return number1 +  number2;

  console.log("Calculation complete");
}

const sum = calculateSum(23, 45);
console.log(sum);

const student1 = {
  name: "Sam Smith",
  nationality: "India",
};

const student2 = {
  name: "Oliver Smith",
  nationality: "USA",
};

const courseFee = 5000;

const getStudentFee = student => {
  if (student.nationality !== "India") {
    return courseFee;
  } else {
    const discountedFee = courseFee - courseFee * 0.1;
    return discountedFee;
  }
};

console.log(getStudentFee(student1));

console.log(getStudentFee(student2));

const student1 = {
  name: "Sam Smith",
  nationality: "India",
};

const student2 = {
  name: "Oliver Smith",
  nationality: "USA",
};

const courseFee = 5000;

const getStudentFee = student => {
  if (student.nationality !== "India")
    return courseFee;

  const discountedFee = courseFee - courseFee * 0.1;
  return discountedFee;
};

console.log(getStudentFee(student1));

console.log(getStudentFee(student2));

const user1 = {
  name: "Sam Smith",
  isAdmin: true,
};

const user2 = {
  isAdmin: false,
};

const displayGreeting = user => {
  if (!user.name) return;

  console.log(`Hello ${user.name}`);
};

displayGreeting(user1);

displayGreeting(user2);