dave caruso @thepaperdave Twitter profile

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dave caruso

@thepaperdave

11 months

In the next version of Bun "vite dev" runs

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dave caruso

@thepaperdave

8 months

In the next version of Bun You can switch to 'bun install' from npm without upgrading dependencies.

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dave caruso

@thepaperdave

3 months

In the next version of Bun console.log formats large numbers with exponent notation.

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dave caruso

@thepaperdave

5 months

today, i got "bun run <npm package>" to work on windows ~800ms faster than npx. bun cowsay yooo: 79ms (11x faster) npx cowsay yooo: 925ms

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dave caruso

@thepaperdave

4 months

sharp works in bun for windows

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dave caruso

@thepaperdave

5 months

bun for windows gets initial ffi support

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dave caruso

@thepaperdave

1 year

In the next version of Bun Discord.js works

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dave caruso

@thepaperdave

6 months

got bored and started cleaning up some random error messages in bun. before on the left, after on the right.

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dave caruso

@thepaperdave

7 months

In the next version of Bun, You can pass -e to evaluate scripts. This also exposes node/bun builtins as top level variables.

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dave caruso

@thepaperdave

1 year

In the next version of Bun Hashing with "crypto" is 2.7x faster than Node.js on small input.

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dave caruso

@thepaperdave

9 months

In the next version of Bun 'server.requestIp(req)' returns the IP of the Request, as this isn't available on the web Request object.

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dave caruso

@thepaperdave

9 months

One reason Next.js does not work perfectly on Bun right now is that they override 'Module.prototype.require', aka the "require" function for all CommonJS modules.

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dave caruso

@thepaperdave

7 months

In the next version of Bun, You can run any file as a test file by passing it as a path.

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dave caruso

@thepaperdave

11 months

In the next release of Bun async_hook's AsyncLocalStorage works. This API lets you pass state through await & promises, like a request ID

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dave caruso

@thepaperdave

7 months

i very much enjoy making error messages better

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dave caruso

@thepaperdave

8 months

hold my chocolate while i build bun for windows.

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dave caruso

@thepaperdave

27 days

In the next version of Bun Sourcemaps 'just work' when you run the output of `bun build --target=bun --sourcemap`

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dave caruso

@thepaperdave

10 months

@jarredsumner progress on the app router: it can render one page, but then it breaks. we're definitely close.

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dave caruso

@thepaperdave

11 months

In the next version of bun test "bun test -t <pattern>" lets you filter tests to run via regex

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dave caruso

@thepaperdave

3 months

small thing coming to all platforms, "bun pm cache rm" deletes bunx cache

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dave caruso

@thepaperdave

7 months

Every macOS computer includes a JavaScript shell in terminal, run: /System/Library/Frameworks/JavaScriptCore.framework/Versions/Current/Helpers/jsc

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dave caruso

@thepaperdave

7 months

@thdxr i get 10ms-100ms on node, then <10ms on (upcoming) Bun.

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dave caruso

@thepaperdave

6 months

😭

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dave caruso

@thepaperdave

6 months

fun fact, all CommonJS modules support html comments.

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dave caruso

@thepaperdave

10 months

In the next version of Bun, Add custom formatters to objects with "Bun.inspect.custom" (compatible with Node's inspect)

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dave caruso

@thepaperdave

2 months

hi im 20

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dave caruso

@thepaperdave

7 months

i set github actions to upload core dump and .. o.. oh

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dave caruso

@thepaperdave

8 months

@tsoding @discord why are you on a two year old version of chromium

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dave caruso

@thepaperdave

1 month

i wish typescript checking was faster

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dave caruso

@thepaperdave

9 months

@thorstenball i like to think of it in frames. 16ms is one frame on a 60hz display. if you can do an action in under that time, it is quite literally instant.

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dave caruso

@thepaperdave

5 months

this is the stupidest thing in all of javasscript

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dave caruso

@thepaperdave

6 months

you can import "bun:test" in any file now. it lets you do some useful things but also you can be really silly. i wonder if setSystemTime has any non-test applications.

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dave caruso

@thepaperdave

7 months

Bun.spawnSync() on windows almost barely works.

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dave caruso

@thepaperdave

6 months

my phone passcode is the last 4 digits of pi

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dave caruso

@thepaperdave

6 months

@bunjavascript oh btw, huge internal changes to help the upcoming windows build. for example, youll notice that "node:path/win32" module actually works now. lot of other subtle things changed too but i think the rest arent too clearly visible

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dave caruso

@thepaperdave

9 months

i wasted 10 hours to find this fix:

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dave caruso

@thepaperdave

4 months

fixing up lot of bunx edge cases on windows. dont have a good screenshot that will wow anyone, but i will be able to say it works as expected. it has a lot of special paths to do things faster. alot of which are only doable on windows. some are because windows forces me.

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dave caruso

@thepaperdave

6 months

what i've been spending the past 6 months on in my free time:

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dave caruso

@thepaperdave

9 months

@imUnsmart @jarredsumner it's nearby a "fixes ..." comment and the issue i mention is related. the full line is "Does not fix #4660 but this probably lays out most of the work for it to work."

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dave caruso

@thepaperdave

3 months

was messing around

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dave caruso

@thepaperdave

6 months

this is what my workspace looks like when triaging issues/testing features for bun

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dave caruso

@thepaperdave

23 days

at some point you learn all programming is actually just instructions for how to move data around.

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dave caruso

@thepaperdave

1 month

insane

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dave caruso

@thepaperdave

11 days

busy

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dave caruso

@thepaperdave

7 months

I forgot to mention it supports typescript, top-level-await, and also JSX

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dave caruso

@thepaperdave

4 months

this is why i dont really trust LLMs at all anymore

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dave caruso

@thepaperdave

1 year

i started working on a really nice TS library to interface with @OpenAI 's new chat + functions api. the defined "weather" function gets called in order to respond, since the prompt is asking for it. also supports streaming with async iterators. will publish tomorrow or so

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dave caruso

@thepaperdave

7 months

windows environment variable keys can contain emojis

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dave caruso

@thepaperdave

8 months

this causes bun's ci to take one minute longer than it really needs to. lol.

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dave caruso

@thepaperdave

11 days

the more i use git submodules the less and less i enjoy them. at the start i thought they were great, now life is

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dave caruso

@thepaperdave

2 months

in my opinion this is a design flaw in the typescript language

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dave caruso

@thepaperdave

1 year

@Joshument @uwukko its a result of css modules or similar techniques that allows you to have per-component styles where the actual class names might be the same, but when compiled theyre mapped to something else to not conflict with each other (). its a better dev experience.

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dave caruso

@thepaperdave

7 months

pro tip: alias a bunch of file conversion command with opinionated default presets

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dave caruso

@thepaperdave

5 months

import { fileURLToPath } from 'url'; function isWindows() { try { fileURLToPath("file:///") } catch { return true; } return false; }

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dave caruso

@thepaperdave

4 months

reminder: the operating system is not responsible for clearing the temp folder. mac and linux usually do, but it is not guaranteed

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dave caruso

@thepaperdave

5 months

its both fun and pain to write this code. its very low level. not linking libc

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dave caruso

@thepaperdave

5 months

@bunjavascript hexdump of tsc.bunx

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dave caruso

@thepaperdave

9 months

also, it was not fun tracing this bug in Bun from a difference in how <Head /> renders lol

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dave caruso

@thepaperdave

6 months

and minifiers cannot remove the space in a less than not decement operation

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dave caruso

@thepaperdave

3 months

took one day to figure out this bug, added an assertion so future situations that run into this will instantly know why.

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dave caruso

@thepaperdave

3 months

taking more than one second to save a file (small, this one is 1586 bytes) should be considered an editor/tooling bug nowadays.

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dave caruso

@thepaperdave

2 months

switching web browsers again: arc -> safari

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dave caruso

@thepaperdave

5 months

@jarredsumner its always annoyed me that the process already recieves sigint -- meaning in almost every case answering no to "terminate batch job" still terminates the application.

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dave caruso

@thepaperdave

5 months

oh wait till i drop `direct_launch_with_bun_js` i think its going to get much faster

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dave caruso

@thepaperdave

3 months

the more software i see that claims it is fast *because of* the language it's written in, the more i want to never write any software ever again. the reason fast software is fast is because of technical decisions made along the way writing it.

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dave caruso

@thepaperdave

2 months

been doing some frontend stuff and for simple projects, i do not see the need to use anything complicated. this project is single page and i am going to fit the entire frontend under 10kb before gzip.

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dave caruso

@thepaperdave

7 months

you know how theres that one ai model that can separate singing from instrumental. can someone do that but to remove the laugh track from tv shows.

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dave caruso

@thepaperdave

11 months

@wojtekmaj91 @jarredsumner way earlier when i was testing this, i ran an http stress test benchmark on the dev server (not really a realistic thing) and it was something like twice as fast. (this is off memory so don't quote me)

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dave caruso

@thepaperdave

3 months

instead of using node version manager, i have a ten line shell script which re-downloads and installs such program. anything more complicated than this is silly.

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dave caruso

@thepaperdave

1 year

I'm making a web framework with #reactjs (server components support) and bun ( @oven_sh ). here's an HMR demo with the first build in 20ms, and client components reloading in ~5ms per change. very experimental

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dave caruso

@thepaperdave

7 months

i hate that the price to recover my data is quite literally an order of magnitude above the cost to buy cloud storage for the entire time i've been alive. this thing i'm going to pay for is the biggest waste of money in my life for the stupidest mistake ever: forgetting backups

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dave caruso

@thepaperdave

7 months

have not emptied trash since i got this macbook earlier this year. lol

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dave caruso

@thepaperdave

8 months

Fun Fact: powershell can copy directories without -r, but it will only copy the directory without the contents. On unix, trying to do this fails. Didn't realize till now that I pushed a build without headers.

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dave caruso

@thepaperdave

1 month

@umaar can you just make it custom so i can make it like 30000x slowdown and see my page work in slow motion

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dave caruso

@thepaperdave

11 months

reminder that synchronous js module formats like commonjs are faster than esm modules. but es import/export statements are nice

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dave caruso

@thepaperdave

7 months

im glad im not paying the ci bill

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dave caruso

@thepaperdave

9 months

@JLarky where is the cli? like "npx is-bun" / "bunx is-bun"

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dave caruso

@thepaperdave

3 years

orange

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dave caruso

@thepaperdave

4 months

to keep my password manager safe, i store it's password in a different password manager. i think i have 3 or 4 of them, storing each other's passwords.

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dave caruso

@thepaperdave

4 months

dear all developers. write more assertions please.

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dave caruso

@thepaperdave

8 months

migrating from yarn and pnpm will come later; most of the work for that is going to be on writing parsers for their lockfiles, and then reusing this 'package-lock.json' -> 'bun.lockb' code.

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dave caruso

@thepaperdave

9 months

They also override 'Module._resolveFilename' which is an observable node internal that is sort of the internal implementation of 'require.resolve'. I knew about this one for a while, but somehow I didn't see the require override until just now.

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dave caruso

@thepaperdave

6 months

added the warning for long lifecycle install scrip, but also slightly smarter printing of newlines vs current behavior.

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dave caruso

@thepaperdave

7 months

does anyone else on macos 14.1.1 have a bug where something overnight eats 700gb of storage. yesterday i cleaned up some space and i am once again out

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dave caruso

@thepaperdave

4 months

the ~ in shells can query any user's home directory

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dave caruso

@thepaperdave

7 months

I have downgraded to macOS 13. I will never update this laptop's operating system ever again.

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dave caruso

@thepaperdave

5 months

@uncentr yes it is technically how let works but this in the context of a repl: - always reporting undefined is often unhelpful - once you declare a let you can no longer put another let, which means you cant uparrow+enter a command you typed.

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dave caruso

@thepaperdave

4 months

today i found out how to control my own mind

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dave caruso

@thepaperdave

5 months

@jarredsumner ill fix bun repl after windows

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dave caruso

@thepaperdave

3 months

also i fixed the various % formatters so bun now matches the unintuitive spec :)

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dave caruso

@thepaperdave

7 months

Node.JS pop quiz: path.win32.resolve("/one", "D:two", "thre", "F:four", "five")

F:\four\five

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F:\one\two\thre\four\five

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dave caruso

@thepaperdave

7 months

been kinda on a spiral of being mad because people say that LLMs do way more than they really do. every use case seems to be a demo, but applying it into larger tasks falls apart in subtle or explosive ways. probably gonna cancel chatgpt+, humans can create better art

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dave caruso

@thepaperdave

11 months

it's a fun nightmare adding a new bytecode operation type to JavaScriptCore (done as a way to implement bun's AsyncLocalStorage faster)

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dave caruso

@thepaperdave

8 months

do you ever write code that feels "too simple to be the correct solution"

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dave caruso

@thepaperdave

11 months

@iddar @jarredsumner I'm going to be spending most of my time tomorrow before the release trying as many vite plugins and configurations to make sure everything works. i know there is one bug still preventing sveltekit but it's being worked on already.

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dave caruso

@thepaperdave

4 months

@jarredsumner can be fixed by uninstalling coreutils i don't think we should be using them in our windows tests, especially considering we implement almost all of the apis exposed there within bun.exe

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dave caruso

@thepaperdave

6 months

javascript code: Array.prototype.reverse .call({ 0: 'a', 1: 'b', 2: 'c', 3: 'untouched', length: 3 })

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dave caruso

@thepaperdave

19 days

it would be funny if typescript autocomplete had a list of every function from every npm package so you could just autocomplete any package, like if you typed `init`, you would get like a million completions for every function named `init()`

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dave caruso

@thepaperdave

9 months

These issues aren't hard to fix, but they cause slowdowns considering our module resolver is entirely in native code. It's also funny to see the ways that people hack into node internals (footnote: in node you can override 'fs.readFileSync' to alter how require loads source code)

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dave caruso

@thepaperdave

3 months

@thorstenball still waiting for better zig support, the `gq` vim binding to reflow text, auto-save, and maybe some more light themes. currently it's at the point that in non-zig programs i flip between vscode and zed depending on the action.

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