Angular 21 Signals Deep Dive | Update, Set & Computed Methods
🚀 Learn Angular 21 Signals from scratch in this complete full course
by OctAcademy!
Whether you're coming from RxJS and Reactive Forms or just starting
with Angular, this course walks you through everything you need to
master the Signals API in Angular 21 — with live coding, real examples,
and beginner-friendly explanations.
✅ What you'll learn:
What Signals are and why Angular moved to them
signal(), computed(), and effect() — the core building blocks
set() vs update() — when and why to use each
Immutable updates with objects and arrays
Sharing signals across components using Services
Read-only signals for clean state management
Performance benefits over traditional change detection
Naming conventions, best practices & common mistakes
📌 Beginner-friendly but packed with real-world patterns used in
production Angular apps.
🔔 Subscribe to OctAcademy for more Angular courses, React tutorials,
and web dev content every week!
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⏱️ Chapters:
00:00 – What Are Angular Signals? (Old Way vs New Way Explained)
09:32 – How Signals Boost Performance Over Traditional Change Detection
13:18 – Sharing Signals Between Components Using Angular Services
24:36 – Working With Object Data in Signals (Immutable Updates)
33:27 – Working With Arrays in Signals (Add & Remove Immutably)
40:09 – set() vs update() – When to Use Each Method
51:25 – computed() – Creating Reactive Derived Values
59:43 – computed() vs Traditional Angular Change Detection
1:03:55 – effect() – Running Side Effects on Signal Changes
1:08:29 – Naming Conventions, Best Practices & Performance Tips
1:23:30 – Read-Only Signals for Encapsulation & State Management
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🛠️ Built With:
Angular 21
TypeScript
VS Code
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#Angular #Angular21 #AngularSignals #OctAcademy #WebDevelopment
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