Tenno is a web app that lets you create Markdown documents that can include computational cells.
You can think of it as a mix of Word and Excel, some sort of &quot;literate programming&quot; environment.This is still an early version but I wanted to get some feedback from HN on what could be nice features to add.Check out the Docs and examples page, it has a ton
of (in my humble opinion) cool stuff!Why did I build this?
I was building some estimation for cloud costs in Google Sheets and I quickly ended up with a mess. I realized that if I wanted to analyze how a certain thing changes wrt to multiple variables by plotting it, I had to create a bunch of copies of data and copy my formulas everywhere... a SWE nightmare!Tenno simplifies this because you can essentially define a function you are interested in, and only the analyzing it using plots that explore various dimensions.BTW, you can also use Tenno to build dashboards by pulling data from APIs, checkout the weather data example.

Show HN: Tenno – Markdown and JavaScript = a hybrid of Word and Excel

I originally built a QR code generator as a resume project using Rust and I realized a web interface would make customization way easier.This still generates the &quot;data&quot; using that rust library via wasm, but the rendering is all editable javascript to make an SVG or paint on an HTML canvas.I was especially inspired by <a href="https:&#x2F;&#x2F;qrbtf.com" rel="nofollow">https:&#x2F;&#x2F;qrbtf.com</a> which had some unique style options I had never seen before, which I ended up copying, and then I made some more.

Show HN: qrframe – generate beautiful qr codes with javascript code

We shrunk our Javascript monorepo git size

I&#x27;ve open sourced a JavaScript to WASM compiler. It&#x27;s an experimental tool, but given the semantics I already implemented, I&#x27;m fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.

Show HN: Jaws – a JavaScript to WASM ahead-of-time compiler

We&#x27;re building a different kind of JavaScript engine, based on data-oriented design and willingness to try something quite out of left field. This is most concretely visible in our major architectural choices:1. All data allocated on the JavaScript heap is placed into a type-specific vector. Numbers go into the numbers vector, strings into the strings vector, and so on.2. All heap references are type-discriminated indexes: A heap number is identified by its discriminant value and the index to which it points to in the numbers vector.3. Objects are also split up into object kind -specific vectors. Ordinary objects go into one vector, Arrays go into another, DataViews into yet another, and so on.4. Unordinary objects&#x27; heap data does not contain ordinary object data but instead they contain an optional index to the ordinary objects vector.5. Objects are aggressively split into parts to avoid common use-cases having to reading parts that are known to be unused.If this sounds interesting, I&#x27;ve written a few blog posts on the internals of Nova over in our blog, you can jump into that here: <a href="https:&#x2F;&#x2F;trynova.dev&#x2F;blog&#x2F;what-is-the-nova-javascript-engine" rel="nofollow">https:&#x2F;&#x2F;trynova.dev&#x2F;blog&#x2F;what-is-the-nova-javascript-engine</a>

Show HN: Nova JavaScript Engine

Proposal: JavaScript Structs

Notes on the new Claude analysis JavaScript code execution tool

Skeptical of rewriting JavaScript tools in "faster" languages

Should JavaScript be split into two languages?

A React Renderer for Gnome JavaScript

Hacking cars in JavaScript (Replay attacks in the browser with the HackRF)

We built JavaScript natively into a spreadsheet as a cell language. Use JS to analyze and work with data in a high-performance spreadsheet built on Rust and WASM. Quadratic also supports SQL, Python, and formulas.The goal with Quadratic is to build a modern, high-performance, source-available spreadsheet for everyone. From technical developers to users who have never written code.Sharing our JS launch with everyone today to see what you build in Quadratic.

Show HN: Quadratic – native JavaScript support in a spreadsheet

TinyJS – Shorten JavaScript QuerySelect with $ and $$

I always had a sweet tooth for how easy it is to use google&#x2F;benchmark, but when working with js, current libraries didn&#x27;t feel right and some were not even accurate enough, so I decided to create my own library to make JavaScript benchmarking tooling better.With more free time, I finally implemented all features I wished for in 1.0.0 and made a lightweight C++ single-header version for moments when google&#x2F;benchmark is too much.Hope this library helps you as much as it does me.

Show HN: Mitata – Benchmarking tooling for JavaScript

JavaScript dos and donts Mu-An Chiou

Show HN: I made a Sonic runner game in JavaScript

Math4devs.com: List of mathematical symbols with their JavaScript equivalent

Python dethrones JavaScript as the most-used language on GitHub

I&#x27;ve developed a Tamagotchi-like virtual characters drawn in JavaScript. These characters can be manually controlled or interact dynamically with AI assistants, adding a visual identity and fun to AI.Imagine having an AI character that responds to user requests with different states, making interactions playful and engaging.Demo: 
<a href="https:&#x2F;&#x2F;barqawiz.github.io&#x2F;Tamagotchi&#x2F;" rel="nofollow">https:&#x2F;&#x2F;barqawiz.github.io&#x2F;Tamagotchi&#x2F;</a>Code:
<a href="https:&#x2F;&#x2F;github.com&#x2F;Barqawiz&#x2F;Tamagotchi">https:&#x2F;&#x2F;github.com&#x2F;Barqawiz&#x2F;Tamagotchi</a>

Show HN: Tamagotchi-like characters for AI assistants in JavaScript

Nginx/njs: A subset of JavaScript language to use in Nginx

JavaScript powers the web - it's **the** most important programming language you need to know as a web developer.

## Exempel 1

For example, We have an array of different objects that can weigh the same or different and are spaced apart from us.
The customer wants the lightest and closest object.

```js
object.sort((a,b)=>a.weigh - b.weigh)

 const lightest=(object[0].weigh);
 let sortDistance=(object[0].distance); 

 for (let i = 0; i< object.length; i++) { 
 if (lightest === object[i].weigh && sortDistance > object[i].distance){
 sortDistance = object[i].distance;
 sortObject.unshift(object[i]);
 }else{
 sortObject.push(object[i]);
 }
 }
```

... more comming soon

JavaScript News

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