TIL you can use `@entity.Attributes.Lambda.Function` to group messages from multiple different log groups. Useful when you need to analyze cold starts from many Lambdas with a single cloudwatch query.

Here's Lambdalet.AI - an AI-powered bookmarking and read-it-later service. It saves any page you're reading into your own Notion database — full text, fully searchable, zero fuss. I built this for the AWS Lambda Hackathon!

✍️ New blog post by Chris Cook Flatten Array of Arrays using JSONata for AWS Step Functions #aws #programming #tutorial #javascript

Flatten Array of Arrays using JSONata for AWS Step Functions

The Map state of AWS Step Functions returns an array of arrays as a result. For further processing,...

dev.to

If your using JSONata instead of JSONPath for your AWS Step Function workflow, here's how you can flatten an array of arrays:

It would be nice if there was a way to pause Lambdas while waiting for a HTTP response. Like fire of a few requests, the Lambda goes into hibernate and automatically resumes when all requests have concluded.

Using a reasoning model for coding feels like driving a sports car in stop-and-go traffic

Long lived AWS IAM credentials for the management console would be nice

Glad it's open source github.com/gskinner/reg...

GitHub - gskinner/regexr: RegExr is a HTML/JS based tool for creating, testing, and learning about Regular Expressions.

RegExr is a HTML/JS based tool for creating, testing, and learning about Regular Expressions. - gskinner/regexr

github.com

Chris Cook@zirkelc.dev · last yr.

Looks like my favorite Regex testing site is down 😭 regexr.com

Looks like my favorite Regex testing site is down 😭 regexr.com

In 2011, there was an proposal to change the type of null `typeof null === null` Too bad it didn't get accepted web.archive.org/web/20160331...

Maybe soon we can use response streaming from AWS Lambda with @trpc.io 👀 github.com/trpc/trpc/pu...

Found this TODO in my codebase 😄 If I make a PR, will @vitest.dev accept it? 👀

I started a discussion for a new asymmetric matcher for @vitest.dev that checks if a property does not exist. Basically, the opposite of `expect.anything()`, could be named `expect.nothing()` Would love to get some feedback 🙏 github.com/vitest-dev/v...

Asymmetric matcher for property NOT exists (opposite of `anything`) · vitest-dev vitest · Discussion #7324

Hey, is there a way check if an object does not have a certain property? Basically, the opposite of expect.anything(): import { expect, test } from 'vitest' test('object has "apples" key', () => { ...

github.com

TIL `$*` captures all positional arguments into a space separated string You can abuse this for a Git alias to avoid typing the commit message in double quotes: `gc my commit message`

I can't emphasize enough how great this post about quantization is!

Maarten Grootendorst@maartengr.bsky.social · 2y ago

Next up, "A Visual Guide to Quantization"! Over 60 custom visuals explaining quantization of LLMs. Explore (a)symmetric quantization, dynamic/static quantization, post-training techniques (e.g., GPTQ and GGUF), quantization-aware training (e.g., BitNet 1.58b), and more! #llms #ai

It's funny, @sindresorhus.bsky.social has a package for literally everything I search for. I should probably prefix my Google searches with "site:github.com/sindresorhus/"

I wrote a follow up on this topic on @dev.to dev.to/zirkelc/type...

TypeScript CLI: Automate Build and Deploy Scripts

I would like to follow up on my previous post about TypeScript CLIs. Here's how I want to proceed: I...

dev.to

Chris Cook@zirkelc.dev · 2y ago

I like to build local CLIs for my monorepo to automate build and deploy tasks that require more than just a few commands executed as npm scripts. By combining pnpm, commander.js and tsx, I can create executable programs in Typescript: ./cli <command> All the magic is in the shebang.

Building and deploying a React app to a static hosting service like Amazon S3 and CloudFront is a good example for a CLI in TypeScript. Adding Listr2 and Execa to create an easily extensible CLI with `build` and `deploy` command. asciinema.org/a/DFlVSxmoWD...

untitled

Recorded by zirkelc

asciinema.org

Chris Cook@zirkelc.dev · 2y ago

I like to build local CLIs for my monorepo to automate build and deploy tasks that require more than just a few commands executed as npm scripts. By combining pnpm, commander.js and tsx, I can create executable programs in Typescript: ./cli <command> All the magic is in the shebang.

I always wondered how people create these beautiful terminal recordings. github.com/asciinema/as...

GitHub - asciinema/asciinema: Terminal session recorder 📹

Terminal session recorder 📹. Contribute to asciinema/asciinema development by creating an account on GitHub.

github.com

TIL Press the . key on any repository to switch github.dev github.com/github/dev

GitHub - github/dev: Press the . key on any repo

Press the . key on any repo. Contribute to github/dev development by creating an account on GitHub.

github.com

It's so funny how confident LLMs are when they make mistakes. The model generates invalid code. You specifically ask them about lines of code. The model confidently explains how it works. You give them the error. The model is like "Ah, you're absolutely right - I apologize for my mistake!"

What if `expect(obj).toMatchPrompt("...")` was a thing It's probably a stupid idea, but I couldn't resist and quickly implemented @vitest.dev custom matcher

I wish VSCode would accept S3 URLs Cmd+P, paste S3 URL, enter and it opens the file

I love how you can use TypeScripts' unique symbols as a parking spot for types 👀 Here's a simple query helper function to attach the result type to an object and infer it back later I've shared a complete example on @dev.to: dev.to/zirkelc/uniq...

Just found out about Microsofts' GenAIScript and not sure how to feel about it Anyone tried it yet? github.com/microsoft/ge...

GitHub - microsoft/genaiscript: Automatable GenAI Scripting

Automatable GenAI Scripting. Contribute to microsoft/genaiscript development by creating an account on GitHub.

github.com

Vitest v3 has just been released 👀 github.com/vitest-dev/v...

I noticed that Vercels' popular `ms` pkg for converting time units to milliseconds uses 365.25 as a multiplier for the days in a year. I know this is to account for leap years, but is that the right assumption to make here? Effectively this means that `ms(1y) != ms(365d)` without ppl knowing it

Here's @tkdodo.eu original post where I saw this pattern for the first time. It's also the first time that using TypeScripts' `unqiue symbol` has made any sense to me. tkdodo.eu/blog/the-que...

Chris Cook@zirkelc.dev · 2y ago

Inspired by React Query's `queryOptions()`, I made a little helper to add the type of the parameter and the return type to the query definition (yes, I know about ORM). The next step would be to use template literal types to parse the parameters and return type from the query string.

Inspired by React Query's `queryOptions()`, I made a little helper to add the type of the parameter and the return type to the query definition (yes, I know about ORM). The next step would be to use template literal types to parse the parameters and return type from the query string.

I just stumbled upon `unbuild` from @unjs.io Bundling for ESM and CJS is already super easy thanks to `tsup`, but `unbuild` looks even nicer! github.com/unjs/unbuild

GitHub - unjs/unbuild: 📦 A unified JavaScript build system

📦 A unified JavaScript build system. Contribute to unjs/unbuild development by creating an account on GitHub.

github.com