Webpack is a great bundler with a steep learning curve. There are so many options that starting to use it is daunting. If you are using this planning on using this yourself, I'd first consider finding a package that implements it for your use case, such as react. If you do end up using it be ready for a lot of reading to fully understand what webpack is doing.
Moment used to be the main library working with dates, but the current performance and best practice standards (immatability) have pushed it to the shadow. If you're maintaining a project with moment - leave it as is, as it's battle tested. If you're starting a new project - choose date-fns.
It does make developers lives easier when it comes to working with dates and times. It also has been a great example of documentation. It got too large for its boots though and there are now a number of alternatives that meets most of people's needs while are much more optimised in terms of bundle size of what users have to download. The other gotchya is that moment is mutable, meaning you need to be careful when trying to test it since if you change the date, it could have unintended consequences and change the date for a test you didn't mean it to. Overall, consider using other libraries (which you can find in their documentation), this should not be your go to date time library, you should look to use something like Luxon or date-fns which are immutable apis and also are more performant.
One area that can be a pain while spinning up a new web application is working with dates and times. moment has always done exactly what I needed when working with displaying and validating dates and times in my JavaScript projects. I originally used moment a few years back on a scheduling application and it was easy to get up and running with a quick script link. Managing different format styles was quick to track down in the reference material. Documentation was easy to follow even at the first introduction. The update to port moment to ES6 was a welcome one, and it was refreshing to see all features carried over with the upgrade. Using moment again on a recent project, it was simple to include in my React application. No fuss to re-learn date and time formatting and the parsing is taken care of for a clean, consistent front-end result. I have not encountered any dependency conflicts so far when using moment, and stability has not been an issue when new versions are published. The MIT license and open source code available on GitHub makes it easy to track upcoming features and known fixes in the pipeline as well.
Incredible package. Dealing with time and timezones is one of the biggest pain points and this makes it a breeze. (Un)fortunately, Temporal proposal should become a replacement for most, if not all, time packages in the near future.
This is great to use for quickly developing and adding amplify features to your project. This tool works great and has easy to use commands. I have seen issues in the past where the maintainers aren't upfront with the community about ongoing issues but I haven't seen that lately.
Great software with intuitive coding design for a great dev experience. The performance is great and scales well. Very easy to integrate with other libraries. Switching between APIs, static pages, and dynamic pages is easy. The coupling of file paths and routes is incredibly easy to use and saves having to manage another dependency.