FunctionCallOrder.ts

let msn = 'First';

// Without auto invocation
const write = (): string => {
  console.log('Second');
  return '...';
};

// With auto invocation
const message = write();

// Without auto invocation
const isFunction = function () {
  console.log('Third');
};

console.log(msn);
isFunction();

// Second
// First
// Third