Peter Leonov

JavaScript ninja.

[ClickHouse @ClickHouseDB]

We just shipped our official ADBC driver, in partnership with @columnar_tech.

https://t.co/vOsgIaxnTx

One command installs a signed binary, and it speaks Apache Arrow natively, so results move from ClickHouse into your app with zero conversion.

Ruby, R, and C get real ClickHouse access for the first time.

[ClickHouse @ClickHouseDB]

clickhouse/rowbinary is a Node.js reader and writer for ClickHouse's RowBinary format that doubles as an Agent Skill.

Instead of calling the library as a black box, a coding agent can read it as a reference implementation and forks it into a parser specialized for your exact query schema.

https://t.co/OHxQPTVPDE

[Peter Leonov @peterleonov]

Your very own public HTTPS tunnel ngrok alternative for local web development in 10 min https://t.co/iapt8SU2mE

[Peter Leonov @peterleonov]

@KentonVarda Hate to break it to you but there lots of such tools with many years of history. Here is mine https://t.co/Tts4jRqYe1

[Peter Leonov @peterleonov]

Check out the new type safe JSON API checker of mine: https://t.co/Tts4jRrw3z

[Peter Leonov @peterleonov]

Been hacking on the TypeScript compiler API to get a small but efficient type predicate generator. Should work in any current JS/TS dev environment and every runtime. It's just a code generator in the end 🙂https://t.co/5t8liXV8Pj

[Peter Leonov @peterleonov]

@mistydemeo Sad to have missed this. Anywhere I'd subscribe to keep myself updated on the streams?

[Peter Leonov @peterleonov]

…and my first SEGFAULT in years! How much I missed this feeling of being free from VM protection 😍

[Peter Leonov @peterleonov]

Having some fun with unsafe pointers in Rust. Yes, it's pure joy now, as the pain will come later… in production 😅

[Peter Leonov @peterleonov]

Six month later perseveringly continuing the Pico JS videos. This time it's just `eval(ast)` but spiced with exceptions (or just panics?) https://t.co/Uy0OY3nUp5

[Peter Leonov @peterleonov]

Even the unsafe Rust is as safe a it can possibly be with all that nice null-checks and sweet mutability restrictions in place. This is the level of care I really appreciate while shooting myself in the foot!

[Peter Leonov @peterleonov]

To feel the real need for using a lifetime in Rust, try this sweet hard Exercism: https://t.co/dV2XOebSc0

The need for use of an explicitly specified lifetime hits you halfway through the task and invites to do some research and rethink the solution design a bit 😯🤯😌🦀

[Nicholas Wilcox @redbluemonkey]

Another blog post since we're about to have a lot more ARM in our lives: Examining ARM vs X86 Memory Models with Rust https://t.co/Rn9GPB4IUx #rust #rustlang

[Peter Leonov @peterleonov]

@dcodeIO This is awesome! Can you please link to the final PR? Wanna see what was the last straw :)

[Peter Leonov @peterleonov]

Self-hosted AS, wow!

[dcode @dcodeIO]

The #AssemblyScript compiler compiled to #WebAssembly using the AssemblyScript compiler compiled to WebAssembly now produces the exact same binary as the AssemblyScript compiler compiled to WebAssembly using the AssemblyScript compiler compiled to #JavaScript. ☯️

[Peter Leonov @peterleonov]

JavaScript parser (magically) tells apart the whole variety of slashes: division, RegExp and comments. How? Let's implement just that: https://t.co/TH5H3zIxy9

[Peter Leonov @peterleonov]

Ollie and me had some fun teaching operator precedence (the functional way 🥰) to our pico JS parser. https://t.co/Ynm6bbWtYU

[Peter Leonov @peterleonov]

@trupill …wearing masks 😬☺️

[Peter Leonov @peterleonov]

@aral @koehr_in Not at all necessary on the other side of the world…

[Peter Leonov @peterleonov]

@renoirb @rauschma Nice one! Spent few intense minutes guessing, but then lazily thought “typescript will double check the combinations for me”. Too lazy?