JavaScript

Understanding JavaScript Internals - Call Stack, Execution Context, and Closures

const login = (email, password) => {
  const user = {
    email: "adam@example.com",
    password: "123456",
  }

  const authenticate = () => {
  }

  return authenticate();
}

const message = login("adam@example.com", "password");
console.log(message);

const login = (email, password) => {
  const user = {
    email: "adam@example.com",
    password: "123456",
  }

  const authenticate = () => {
    if (email === user.email && password === user.password)
      return "Login Successful.";

    return "Invalid Credentials.";
  }

  return authenticate();
}

const message = login("adam@example.com", "password");
console.log(message);