Sachin's DevLog
Back to Sachin's DevLog
Modern Web

Building a Custom Reactive State Manager in 50 Lines of Vanilla JS

Learn how modern reactive systems like SolidJS or Svelte Runes work. Create a lightweight, high-performance Signal reactive state manager in pure JS.

Sachin Sharma
Sachin SharmaCreator
May 31, 2026
4 min read
Building a Custom Reactive State Manager in 50 Lines of Vanilla JS
Featured Resource
Quick Overview

Learn how modern reactive systems like SolidJS or Svelte Runes work. Create a lightweight, high-performance Signal reactive state manager in pure JS.

ReactivitySignalsProxy APIVanilla JavascriptState ManagementPerformance
Sachin Sharma

Sachin Sharma

Software Developer

Building digital experiences at the intersection of design and code. Sharing weekly insights on engineering, productivity, and the future of tech.

Previous Article

Beyond WebGL: Real-Time Fluid Simulations Using WebGPU Compute Shaders

Step into the future of browser graphics: implementing high-performance, real-time particle fluid dynamics utilizing WebGPU compute shader pipelines.

Next Article

CSS Container Queries & :has() Selector: Advanced Layout Patterns

Discover how container queries and the :has() relational selector revolutionize modern component-driven styling and responsive web layouts.