Mithril-Signals

A tiny (~1KB) reactive signal system for Mithril.js.

Inspired by usignal by Andrea Giammarchi, this library provides fine-grained reactivity and automatic dependency tracking, while hooking directly into Mithril's m.redraw() cycle.

Features

• Automatic Redraws: Signal updates trigger batched requestAnimationFrame redraws.
• Memory Safe: Effects automatically unsubscribe from signals when re-run or disposed.
• Recursion Guard: Built-in re-entrancy protection and .peek() method to prevent infinite loops.
• Glitch-free: Computeds only re-evaluate when dependencies truly change.

API

• signal(value): Create reactive state.
• signal.peek(): Read value without subscribing.
• computed(fn): Derive state with automatic caching.
• effect(fn): Create side effects.
• batch(fn): Group multiple updates into one redraw.

Installation

npm install
npm run dev