callMethod.js

function sayName(firstName, lastName) {
  console.log(`${firstName} ${lastName}`)
}

sayName('Akash', 'Rajvanshi') // Akash Rajvanshi

// We can also call the function through call.
// first Parameter passed into the function call replaces the this context.
// Other values passed into the functions behave as  normal agrguments 
sayName.call(null, 'Akash', 'Rajvanshi') // Akash Rajvanshi