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Show HN: Dagger.js – A buildless, runtime-only JavaScript micro-framework

(daggerjs.org)
77 points TonyPeakman | 2 comments | 15 Sep 25 01:28 UTC | HN request time: 0s | source

TL;DR: dagger.js is a buildless, runtime-only micro-framework that plays nicely with native Web Components. It uses HTML-first directives (e.g. +click, +load) so you can ship a page by dropping a single <script> from a CDN—no bundlers, no compile step.

Why I built it Modern stacks are powerful but often heavy: bundlers, compile steps, framework DSLs, local CLIs. For internal tools, small apps, and edge/serverless deployments, I wanted something you can view-source, paste into a page, and ship.

What it is:

Runtime-only: no build or VDOM compile; hydrate behaviors directly on HTML. HTML directives: e.g. +click, lifecycle +load / +loaded / +unload / +unloaded. Zero APIs: dagger.js works in pure declarative mode, modules and directives provide everything you need to build your application. Web-Components-first: works alongside Custom Elements; keep concerns local. Distributed modules: load small, focused script modules via CDN. Progressive enhancement: the page renders without a build step.

Use cases:

Admin panels & dashboards that don’t warrant a full toolchain Embed widgets, docs-sites with interactive bits Edge/serverless apps where cold start and simplicity matter

Links

GitHub: https://github.com/dagger8224/dagger.js Docs/Guide: https://daggerjs.org Examples: https://codepen.io/dagger8224/pens

I’d love feedback on edge-cases, and where it breaks. Happy to answer tough questions here.

Show context
wffurr ◴[15 Sep 25 03:12 UTC] No.45245724[source]▶
Seems like it’s been a while since a new JS framework landed on the front page.
replies(2): >>45246039 #>>45247984 #
ivape ◴[15 Sep 25 04:12 UTC] No.45246039[source]▶
The last decade gave us enough JavaScript for a lifetime.
replies(1): >>45246483 #
1. Nickersf ◴[15 Sep 25 05:47 UTC] No.45246483[source]▶
Exactly, we also have to think about support and maintenance when building and shipping products. It's always nice to play with new things to keep the learning fresh and see what people are up to. I started with php and .NET Framework ASP and in the early-mid 2010's when the reactive JS frameworks started coming around I just never found my jive with them and just started working at C#/.NET shops and am using Blazor Server now. For my domain of web application development the .NET web application ecosystem works great. Looking at the dagger.js docs and examples found myself thinking, this is more Java(SCRIPT) development. It's going to inherit the same issues as JavaScript (weak typing, no runtime reflection, no binary build output, locked into vendor interpreters with mixed feature support), and that's not mentioning all the oddities with the way object prototypes are implemented and interact with each other. I think the ambition and result of the project are amiable. The author did good work, but it's good work on a thing we need less of in my opinion.
replies(1): >>45247831 #
2. TonyPeakman ◴[15 Sep 25 09:37 UTC] No.45247831[source]▶
Really appreciate you taking the time to look through the docs and write such a thoughtful comment. You’re right — JavaScript carries a lot of quirks and limitations that aren’t going away, and if you’re building full-scale business apps in the .NET ecosystem, Blazor is a very natural fit.

dagger.js isn’t trying to compete with that class of frameworks. The goal is much narrower: keep a build-free, HTML-first option around for cases where shipping something lightweight, inspectable, and easy to embed is more important than squeezing out type safety or runtime guarantees.

I completely agree that we don’t need everybody moving deeper into JS just for the sake of it. But I do think there’s value in keeping a spectrum of tools alive — from strongly-typed/.NET style systems to small runtime-only JS libraries — so developers can pick the right trade-off for their domain.

Thanks again for the honest feedback; it helps clarify where this approach makes sense (and where it doesn’t).