2gb, I think. Might be 4. It runs fine, though. A text editor, even with lots of features, is less load than a browser session for a complex website. Likewise, local node.js servers aren't very expensive.
Visual Studio Code is a browser session for a complex website. I've had the OOM killer kick in on moderate C compilation loads -- well below what I subject my Linux daily driver to. I've even seen OOM when running Emacs for a long enough time on Termux on my cellphone.
In general, any long-running environment that can generate a lot of garbage presents a risk of triggering the OOM killer, especially when you have to share your development environment with effectively a whole 'nother OS. Enabling swap helps mitigate that risk.
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