Java 9 and IntelliJ IDEA

No, because I did not exprect my project to become as big as it is now. Also, I am using a lot of third party libraries, and I am not sure if they would work seamlessly with another language that compiles to Javascript.

It is kind of surreal to look at a source file and not immediately know if it's Scala or Scala.js (like, oh wait, this is the front end).

Just finished porting a legacy 5K Coffeescript front end over to Scala.js. Having a typed front end with all the power of Scala completely transforms the browser development experience. Great stuff.

Only major drawback is generated js binaries incur a 160KB "tax", primarily due to size of Scala collections. Though, FWIW, the front end weighs in at 232KB non-gzip'd, and was able to scrap jQuery + DataTables + Modal window and Validation plugin dependencies -- shaved off about 200KB compared to previous front end.

Those things are nice, but how would I work with third party libraries like Paper.js? I feel that the difficulties would outnumber the benefits in my case.

> Have you tried Kotlin's javascript backend?

Generates large js binaries, poor js interop; it's well behind the curve compared to Scala.js and Clojurescript on the JVM.

Think they're putting all their developer eggs into the Native basket, which makes sense, iOS + Android would be huge for the language's adoption.

I’m learning it as well. Was pretty blown away when I created a reagent SPA app skeleton with one lein command.

Been doing imperative / oo for years so this is quite different but I’m persevering because I’ve bought into the reactive UI for web apps and JS just seemed like a total mismatch

I used to love Webstorm. It works great for a simple layout and the code inspections and suggestions really speed things up. But a modern setup with ES6, Vue and Webpack almost completely render the IDE unusable for me -- everything slows down to an unbearable speed and most of the inspections either don't work at all or trip over themselves. With that, I've switched to Sublime Text almost exclusively. Any pointers on how to adjust Webstorm, apart from using TypeScript?

Eclipse also had one (strangely called "Display"), though as with most things I found IntelliJ's a bit more user-friendly.

You will probably see better performance if you write your own string deduplication.

https://shipilev.net/jvm-anatomy-park/10-string-intern/

> In almost every project we were taking care of, removing String.intern() from the hotpaths, or optionally replacing it with a handrolled deduplicator, was the very profitable performance optimization. Do not use String.intern() without thinking very hard about it, okay?

That's not going to help my current situation, but either way, thanks, that's really good to know.

They're really different issues. Deduplication reduces the memory consumption of duplicate strings. Compact strings reduce the memory consumption of ascii strings, regardless of whether they're unique or mostly duplicates.

So depending on your situation, you could want either, both, or neither. There is some overlap, however. If you have a lot of ascii strings but also a high level of duplication, either approach will save some memory, but if deduplication by itself saves x bytes, and compact strings saves y, using both will save a lot less than x + y bytes.

And, like the later poster says, don't use String.intern() for deduplication.

thanks to jshell, i can now practice streaming without looking like a fool

How does it relate to OSGi? Also, if just one library uses modules, does it force modularization of everything else or can these two coexist in a reliable fashion?