Angular

Angular is built entirely on TypeScript, so you need comfort with types and decorators first.

The component is Angular's core building block — every UI is a tree of components.

Data binding connects class and template, and the new control flow drives rendering clearly.

Directives change element behavior, and pipes transform data right in the template.

Dependency injection is Angular's heart — it makes code testable and reusable.

Signals are Angular's modern reactivity model, making change detection precise and fast.

The Router turns your app into a single page with multiple routes and smooth navigation.

Most apps talk to APIs, and HttpClient gives you a clean way to fetch and send data.

Angular is built on RxJS, and understanding Observables lets you handle async streams confidently.

Reactive forms give full control over input and validation, the backbone of data-entry apps.

As apps grow, structured state management prevents chaos and makes data flow traceable.

Server-side rendering improves first-load speed and SEO, and hydration makes the page interactive fast.

Tests give you confidence your changes didn't break anything, especially in large apps.

A fast app retains users, and understanding change detection and bundles makes a big difference.

Eventually your app must reach users, and understanding build and deploy completes the picture.