Use JavaScript latest features

[AlbertoPdRF]

Is your feature request related to a problem? Please describe.

It's not really a problem, but making this change would make the code cleaner.

Describe the solution you'd like

Implement JavaScript's latest features to make the code cleaner. Examples include using the optional chaining operator (?.), async/await, etc.

Describe alternatives you've considered

Leave the code as is.

Additional context

Check for JavaScript latest features!

[Niaz-Ul-Haque]

can I get assigned to this? Thank you!