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Powering UI with Lit Web Components
Jan 10, 2025 Open Source

Powering UI with Lit Web Components

Discover how Sakai leverages Lit’s lightweight, standards-based web components to build a scalable, maintainable, and high-performance LMS interface for universities and enterprises.

Introduction

As Sakai continues to evolve as a leading open-source learning management system, its front-end stack must juggle complexity, performance, and consistency. By embracing Lit web components, the Sakai community gains modularity, encapsulation, and ease of collaboration—critical for a project that serves dozens of institutions worldwide.

Why Lit Shines

  • Tiny Bundles & Fast Rendering
    Lit compiles templates into efficient JavaScript, keeping component payloads minimal and UI updates lightning-fast.
  • Reactive Properties
    Declare properties with decorators and let Lit handle update cycles—no manual DOM diffing.
  • Familiar Syntax
    Built on standard ES modules and tagged template literals, teams learn Lit in hours, not weeks.
import { LitElement, html, css } from 'lit';

class SakaiButton extends LitElement {
  static styles = css`button { padding: 0.5em 1em; }`;
  static properties = { label: { type: String } };

  constructor() {
    super();
    this.label = 'Click me';
  }

  render() {
    return html`<button @click=${() => this.dispatchEvent(new Event('activate'))}>
      ${this.label}
    </button>`;
  }
}

customElements.define('sakai-button', SakaiButton);

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