Javascript-common module splicing html, css, img, and js

Most of the projects I have recently worked on are similar. I want to put some separate modules, such as Module A (which may include img, css, html, and js) and module B (which may contain css, html). to create a backend, click or combine the independent modules to copy the AB... module to a page, can... most of the projects I have recently worked on are similar. I want to put some separate modules, such as Module A (which may include img, css, html, and js) and module B (which may contain css, html). to create a backend, click or combine the independent modules to copy the AB... the module is added to a page to preview and download the page. It is easy to use for some simple theme live pages and can be quickly thrown to the backend kids boots!
I don't know how to do it now. could you please use the recommended tools or convenient materials? Want to know how to splice and how to manage these modules?
This is the general process and function that you want to do for the time being.

Module

> Generate AB .html> Preview> Download (static resource package)

Module B

Reply content:

Most of the projects I have recently worked on are similar. I want to put some separate modules, such as Module A (which may include img, css, html, and js) and module B (which may contain css, html). to create a backend, click or combine the independent modules to copy the AB... the module is added to a page to preview and download the page. It is easy to use for some simple theme live pages and can be quickly thrown to the backend kids boots!
I don't know how to do it now. could you please use the recommended tools or convenient materials? Want to know how to splice and how to manage these modules?
This is the general process and function that you want to do for the time being.

Module

> Generate AB .html> Preview> Download (static resource package)

Module B