The daily ledger

Kākāpō Party

Tool: Kākāpō Party I presented a closing keynote for the WeAreDevelopers World Congress North America yesterday. As a STAR moment I decided to weave in references to the record breaking kākāpō breeding season we had in…

Stream::unfold vs direct channel filtering

I have a struct where, you can call a function to get a sender or receiver channel, and a spawn function, the spawn spawns a proxy so you when you ask for the receiver it will give you an unbounded receiver, only by…

Pre-RFC: Compile-time conditional branching on trait implementations

Pre-RFC: Compile-time conditional branching on trait implementations I'd like to propose a way for generic Rust code to conditionally compile branches depending on whether a type implements a trait. The idea is…

How ownership is transferring in same vars?

let s = String::from("hello"); let tuple = (s, s.len()); // i am confused how ownership is moving b/w same vars i.e from first s to tuple s if all s are same ,how it's working??? 3 posts - 3 participants Read full topic

Awaiting async code in Drop

I currently have this struct in my code: /// auto flushes on drop struct Flusher<'a, W: AsyncWriteExt + Unpin>(&'a mut W); which I want to use to automatically flush my async file stream instead of manually calling…

How to specify that two generic type parameters are the same type but have different lifetimes

I am trying to use phf to create a compile time made hashmap, but this requires that the generic type has a static lifetime. I need to compare against the output of this hashmap, but it isn't working because (in my…

Is it possible to quasiquote a concrete version of a generic type inside a proc macro?

I believe I've already found a workaround by just matching against the finite number of concrete types and passing the syn::type struct into the function manually, but it would be nice not to have to do that. I was…

JEP targeted to JDK 28: 539: Strict Field Initialization in the JVM (Preview)

The following JEP is targeted to JDK 28: 539: Strict Field Initialization in the JVM (Preview)

The Python documentation is now available in German

You can now read the Python documentation online in German!

Cheap Yellow Display Dreams of PDA

Everybody loves the Cheap Yellow Display (CYD) ESP32 dev boards, so why not treat yours to a little PDA? That’s right: turn it into a Portable Digital Assistant and relive …read more

Extending react-grid-layout: Cross-Instance Drag & Drop + Multi-Level Nesting

react-grid-layout is great for single-grid drag & drop, but it doesn't support: Moving items between separate grid instances Nesting grids inside grids with independent layout state Here's how I extended it to handle…

what i learned about referrers building a cookieless analytics tool

i'm om yaduvanshi. i'm 18, an applied ai developer, and i built cloudline, a cookieless google analytics alternative. one script tag, under 2 KB, no cookies, no stored ips. what a pageview stores four things: page,…

Privacy-Preserving Client-Side Processing: Rethinking Where Web Applications Handle User Data

Privacy-Preserving Client-Side Processing: Rethinking Where Web Applications Handle User Data Modern web applications have made it remarkably easy to upload a document, image, dataset, or other file and have a remote…

How to get access to DOM from Service Worker?

When working on Fake Linux Terminal and then Hacking Cafe, I've created an abstraction of a Linux process in the form of a web worker. Those executable scripts lived in Filesystem and needed an access to DOM (in my case…

I built FreshDeploy to verify web deployments after release

I've been working on FreshDeploy, a small open-source tool for checking web deployments. It verifies deployed files, detects changes and provides an optional widget for monitoring. Here's a quick test where I modified a…

I Missed @Service in Node.js, So I Built It with Express

Let the browser console create the files At first, the browser console was only a debugging tool. I wrote the same create, read, update, and delete code several times. The console already knew about controllers,…

Insurers claim AI is already increasing healthcare costs

Blue Cross Blue Shield says hospital use of AI tools led to an additional $942M in healthcare spending over a two-year period.

😸 DEEP DIVE: An AI Agent Lied to a Person to Get Its Way

From HTML to JavaScript: My Learning Journey

Every developer starts somewhere. This is the story of how I began learning HTML, CSS, and JavaScript, and the lessons I've learned along the way Introduction Technology has always fascinated me, especially websites and…

Authentication vs Authorization: Reaching an Admin Panel Without the Password

Authentication vs Authorization: Reaching an Admin Panel Without the Password TL;DR: The login worked the entire time. The button that led to the admin panel didn't render for my role, the route behind it still…