> Think node.js but fast
replyColor me extremely sceptical. Surely if you could make javascript fast google would have tried a decade ago....
Bun uses JSC (JavaScriptCore) instead of V8. From what I understand, whereas Node/V8 has a higher tier 4 "top speed", JSC is more optimized for memory and is faster to tier up early/less overhead. Good for serverless. Great for agents -> Anthropic purchase.
reply> Good for serverless. Great for agents -> Anthropic purchase.
replySurely nobody would use javascript for either yea? The weaknesses of the language are amplified in constrained environments: low certainty, high memory pressure, high startup costs.
I think Bun helps with the memory pressure, granted this is relative to V8. I'd pushback on the certainty with the reality that TS provides a significant drop in entropy while benefiting from what is a sweet spot between massive corpus size and low barrier for typical problem/use-case complexity. You'll never have the fastest product with JS, but you will always have good speed to market and be able to move quickly.
replyClaude CLI is based on bun. The dependency is so complete that Bun have now joined Anthropic.
replyClaude CLI is not exactly a reference of usable software
replyIt's plenty usable. Most of the problems with the claude TUI stem from it being a TUI (no way to query the terminal emulator's displayed character grid), so you have to maintain your own state and try to keep them in sync, which more than a few TUIs will fail at at least sometimes, hence the popularity of conventions like Ctrl+L to redraw.
reply> Surely nobody would use javascript for either yea?
replyIt's probably the most popular language for serverless.
I can't vouch for this behavior but obviously you can have a better serverless experience than writing lisp with the shittiest syntax invented by man
replyOnly because the likes of Vercel and Netlify barely offer anything else on their free tiers.
replyWhen people go AWS, Azure, GCP,... other languages take the reigns.
Do you have any stats on the latter?
replyThe actual JS code is in the same ballpark as nodejs. They get fast by specializing to each platform's fastest APIs instead of using generic ones, reimplementing JS libraries in Zig (for example npm or jest) and using faster libraries (for example they use the oniguruma regex engine). Also you don't need an extra transpiling step when using TypeScript.
replythey have, v8 is a pretty fast engine and an engineering marvel. bun is faster at cost of having worse jit and less correctness
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