Hi @yogeshks , thank you for collaboration. Use javascript inside *.phtml file it's legacy code that we try to refactor according to Magento way.

For that we have <script type="text/x-magento-init" /> tag, where we declare path to JS file and pass paramets if they are needed.

Please make refactoring according to Magento way.
If you have some questions we will glad to help you.

Hi @VladimirZaets
Thank you for guidance, I really like to refactor JS code. Do I have to create a new JS component for that which a returns callback function?

Hi @yogeshks , yes, you should create new JS file/component with the callback function, as example and use <script type="text/x-magento-init" /> to call it, as example

Hi @VladimirZaets
I've added JS component, please verify updates

Hi @yogeshks. Updates look good, thanks. I took your PR into processing.

Hi @yogeshks. Thank you for your contribution.
Changes from your Pull Request will be available with the upcoming 2.2.5 release.