Learn DOJO with Real Code Examples

Dojo allows developers to build UI components with a reactive, widget-based architecture.

It supports TypeScript out-of-the-box and encourages strong typing for maintainable applications.

Dojo focuses on high-performance rendering and modular design with minimal overhead.

Functional and class-based widgets

Reactive properties for automatic UI updates

JSX and templating support

Context API for state sharing

Routing and middleware support

Widgets as core UI components

Reactive properties trigger re-render

JSX/tsx templating for views

Context for shared state

Routing and middleware integration

src/widgets - reusable Dojo widgets

src/pages - application pages

src/main.ts - entry point

package.json - dependencies

dojo.config.js - optional CLI configuration

Create widget by extending Dojo Widget base

Define reactive properties

Render UI using JSX/tsx

Compose widgets hierarchically

Manage application state with context or stores

Beginner: simple button widget

Intermediate: interactive form widgets

Advanced: data visualization dashboards

Expert: full-scale enterprise applications

Community: optimizing widget reactivity

Stronger TypeScript integration than React

More modular than Angular

Better fine-grained reactivity than Preact

Smaller ecosystem than major frameworks

Optimized for enterprise applications

2004 – Original Dojo Toolkit released

2017 – Dojo 2+ modern framework introduced

2018 – TypeScript-first widgets and virtual DOM

2020 – Middleware and routing improvements

2025 – Continued performance and ecosystem enhancements

Widget: Core UI component

Reactive property: Data-bound property triggering updates

JSX/tsx: Templating syntax

Context: Shared state mechanism

Middleware: Functional hooks for state and routing