Bun

Bun is a fast, all-in-one toolkit for installing, bundling, running and testing JavaScript & TypeScript. To install: `npm i -g bun`

[Bun @bunjavascript]

Bun is joining Anthropic!

https://t.co/06NlXDZhNE

[Bun @bunjavascript]

1.5 is going to be bigger than 1.4

[Bun @bunjavascript]

this excludes single file binaries that use Bun

[Bun @bunjavascript]

Last month, Bun crossed 50 million monthly downloads

[Bun @bunjavascript]

many people saying this

[SaltyAom @saltyAom]

Bun AOT means "Attack on Titan" mode

[Bun @bunjavascript]

In the next version of Bun

import.meta.glob

[Bun @bunjavascript]

Also: test.extend, vi.hoisted, importOriginal, vi.importActual, vi.doMock, vi.stubEnv, vi.stubGlobal, vi.waitFor, vi.mocked, vi.resetModules, expect.poll, expect.soft, test.for, test.fails, onTestFinished, toMatchFileSnapshot

[Bun @bunjavascript]

In the next version of Bun

bun test gets improved Vitest compatibility, including: DOM environments, automocking, vi.mock hoisting, and async fake timers

[Jarred Sumner @jarredsumner]

Bun AoT in an Express node:sqlite REST API

40% less memory
14% lower cpu
No JIT warmup

[Bun @bunjavascript]

Security incidents across open-source aren't showing signs of slowing down

The Bun team is dedicating a higher % of our time to security work for the foreseeable future

[Trigger.dev @triggerdotdev]

We upgraded our Bun runtime to Bun 1.4 and took Node.js out of the image entirely.

Memory per container dropped 41%, cold starts are 18% faster and the image is 25% smaller.

@jarredsumner and the @bunjavascript team are still cooking.

https://t.co/Y6ZfBEFgDU

[Bun @bunjavascript]

@heyskylo Bun

[Bun @bunjavascript]

@danfq_dev 🫶

[Guillermo Rauch @rauchg]

$ 𝚊𝚕𝚒𝚊𝚜 𝚗𝚘𝚠=𝚟𝚎𝚛𝚌𝚎𝚕
$ 𝚌𝚊𝚝 >𝙳𝚘𝚌𝚔𝚎𝚛𝚏𝚒𝚕𝚎 <<'𝙴𝙾𝙵'
𝙵𝚁𝙾𝙼 𝚘𝚟𝚎𝚗/𝚋𝚞𝚗:𝚊𝚕𝚙𝚒𝚗𝚎
𝙲𝙼𝙳 ["𝚋𝚞𝚗","-𝚎","𝙱𝚞𝚗.𝚜𝚎𝚛𝚟𝚎({𝚙𝚘𝚛𝚝:𝟾𝟶,𝚏𝚎𝚝𝚌𝚑:()=>𝚗𝚎𝚠 𝚁𝚎𝚜𝚙𝚘𝚗𝚜𝚎('𝚠𝚎 𝚊𝚛𝚎 𝚜𝚘 𝚋𝚊𝚌𝚔')})"]
𝙴𝙾𝙵
$ 𝚗𝚘𝚠
> Ready: https://t.co/tOqwRwGUa2

[Bun @bunjavascript]

https://t.co/NcFVicrnQ9 switched from oxfmt to bun fmt

Formatting in CI got 1.7x faster

[Bun @bunjavascript]

https://t.co/NcFVicrnQ9 switched from `oxlint` to `bun lint`

ci got 22s faster

[Bun @bunjavascript]

We expect to replace more, excluding WebKit/JavaScriptCore, BoringSSL, and lsquic.

There’s still: turbojpeg, libpng, zlib-ng, libdeflate, brotli, zstd, and several more.

[Bun @bunjavascript]

Last week, we published 3 security advisories including Brotli, tls certificates, and quic

As future hardening, we will replace most of Bun’s C/C++ dependencies with our own safe Rust implementation.

Starting with libarchive

https://t.co/RvK8vFPUmT

[Bun @bunjavascript]

HdrHistogram is another

https://t.co/3kaq4ixWzd

[Bun @bunjavascript]

and uses 5x less memory

[Bun @bunjavascript]

https://t.co/NcFVicrnQ9 switched from TypeScript 7 to `bun check`

type-checking got 69s faster