It offers about 5 to 10 percent of all functionality of an IDE like IDEA. Much like devs on emacs and vim, most devs on VS Code have literally no idea what an IDE offers [1].
The things that worked in VS Code's favor:
- free. "All software must be free as in beer" is still a prevailing thought in IT, and people are loathe to pay for anything, even if that anything is extremely useful and very difficult to realise and support. On top of that IDEA still has a reputation of being expensive
- reasonably fast
- plugin system is decent and much easier to get into than IDEA, to keep IDEA as an example
- LSP is an overmarketed hype, but it worked in VSCode's immense favor. While it only covers a tiny sliver of things needed for a fully featured IDE, it covers enough of the important features, and is easy enough to implement. This way even languages that never had anything decent beyond broken syntax highlights in emacs and vim now enjoy at the very least an autocomplete
The things that worked in VS Code's favor:
- free. "All software must be free as in beer" is still a prevailing thought in IT, and people are loathe to pay for anything, even if that anything is extremely useful and very difficult to realise and support. On top of that IDEA still has a reputation of being expensive
- reasonably fast
- plugin system is decent and much easier to get into than IDEA, to keep IDEA as an example
- LSP is an overmarketed hype, but it worked in VSCode's immense favor. While it only covers a tiny sliver of things needed for a fully featured IDE, it covers enough of the important features, and is easy enough to implement. This way even languages that never had anything decent beyond broken syntax highlights in emacs and vim now enjoy at the very least an autocomplete
[1] Code refactoring alone is dozens of pages in IDEA docs https://www.jetbrains.com/help/idea/refactoring-source-code....