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Welcome to GlyphUI

GlyphUI is a lightweight JavaScript framework built from the ground up to demystify how popular frontend frameworks like React, Vue, and Svelte operate under the hood. By building a framework from scratch, we gain deep insights into core concepts like virtual DOM diffing, component lifecycle, state management, lazy loading, and more.

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What is GlyphUI?

GlyphUI is an educational framework that implements the fundamental concepts found in modern frontend frameworks. It’s designed to help developers understand:
  • How virtual DOM rendering and diffing algorithms work
  • Component lifecycle management and composition
  • State management patterns and global stores
  • Lazy loading and code splitting strategies
  • Event handling and cleanup mechanisms
GlyphUI is built for learning and exploration. While it implements production-ready patterns, it’s optimized for understanding rather than production use.

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Key Features

Virtual DOM

Efficient rendering with a lightweight virtual DOM and reconciliation algorithm

Components

Build UIs with class-based and functional components

Hooks

React-like hooks API for state and side effects

State Management

Zustand-inspired global state with createStore and connect

Lazy Loading

Code splitting with lazy() and Suspense components

Slots

Content projection for flexible component design

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Quick Example

Here’s a simple counter component to give you a taste of GlyphUI: 
import { Component, h } from "./packages/runtime/dist/glyphui.js";

class Counter extends Component {
  constructor() {
    super({}, { initialState: { count: 0 } });
  }

  increment() {
    this.setState({ count: this.state.count + 1 });
  }

  render(props, state) {
    return h("div", {}, [
      h("p", {}, [`Count: ${state.count}`]),
      h("button", { on: { click: () => this.increment() } }, ["Increment"]),
    ]);
  }
}

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Get Started

Installation

Set up GlyphUI in your project

Quickstart

Build your first GlyphUI application

Core Concepts

Understand the fundamentals

Examples

Explore real-world examples

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Why GlyphUI?

Modern frontend frameworks can feel like magic. GlyphUI removes the mystery by:
  • Teaching by doing: Learn by exploring a complete, working implementation
  • Clear code: Every feature is implemented with readability in mind
  • Progressive complexity: Start simple and dig deeper as you learn
  • Real patterns: Implements the same patterns used by React, Vue, and Svelte
Whether you’re preparing for technical interviews, building your own framework, or simply curious about how the tools you use every day actually work, GlyphUI provides a hands-on learning experience.

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What You’ll Learn

By exploring GlyphUI, you’ll understand:
  • Virtual DOM algorithms and diffing strategies
  • Component rendering lifecycle and optimization
  • Reconciliation and efficient DOM updates
  • State management architectures
  • Event delegation and cleanup patterns
  • Lazy loading and code splitting techniques
  • Hooks implementation and closure management
Ready to dive in? Start with Installation to set up your development environment.

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