Skill Topic · Cinematic

📘 Angular — Signals Deep Dive

Angular ka naya reactive primitive — Zone.js ki dependency khatam! Socho signals ek WhatsApp Status…

Overview

📘 Angular — Signals Deep Dive — Quick Facts

📌

"value change": SIG["📡 Signal\n(value holder)"]

🎯

SIG -->: "reads"

⚡

SIG -->: "triggers"

🔑

COMP -->: "triggers"

Topic 1

📌 1. Signals Kya Hain?

💡

Zone.js (purana) = Group message:…

🔑

Signals (naya) = WhatsApp Status:…

Topic 2

📌 2. signal() — Writable Signal

🔗 🎯 Analogy — Whiteboard Signal = ek whiteboard jis par tum value likhte ho. Jab bhi value…

Topic 3

📌 3. set() vs update() — Kab Kya Use Karein?

💡

set() = AC ka temperature directly…

🔑

update() = Temperature 2 degree…

Topic 4

📌 4. computed() — Derived Signal

📊 🎯 Analogy — Excel Formula Jaise Excel me =A1*B1 formula daalte ho aur A1 ya B1 badalne…

Topic 5

📌 5. effect() — Side Effects

💡 🎯 Analogy — CCTV Camera Effect = ek CCTV camera jo signals ko watch karta hai. Jab bhi…

Topic 6

📌 6. effect() Advanced — Cleanup & untracked()

🎯 🎯 Analogy — Security Guard Shift Change Jab naya guard (effect re-run) aata hai, purana…

Topic 7

📌 7. Signal Inputs (Angular 17.1+)

🔮 🎯 Analogy — Smart Form Fields Purane @Input() = plain text field. Naye input() = smart…

Topic 8

📌 8. model() — Two-Way Binding Signal (17.2+)

🌐 🎯 Analogy — Walkie-Talkie model() = walkie-talkie. Dono taraf se baat ho sakti hai —…

Topic 9

📌 9. Signal Queries (Angular 17.2+)

🧠 🎯 Analogy — CCTV Dashboard viewChild() / viewChildren() = CCTV cameras jo template ke…

Topic 10

📌 10. toSignal() & toObservable() — Bridge

🔗 🎯 Analogy — Language Translator toSignal() = Observable ki language ko Signal me…

Topic 11

📌 11. Practical — Signals-Based Todo App

⚡ `typescript import { Component, signal, computed, effect } from '@angular/core';…

Topic 12

📌 12. Signals vs RxJS — Kab Kya Use Karein?

📊 `mermaid graph TD Q{"Kya chahiye?"} Q -->|"Simple state\n(counter, toggle, form)"| SIG["✅…

Topic 13

📌 13. Common Mistakes — Beginners Yeh Galtiyan Karte Hain

💡 | # | ❌ Galti | ✅ Solution | |---|---------|------------| | 1 | Template me count likha,…

Topic 14

✅ Summary

🎯 📌 Yaad Rakho: - signal() = reactive value holder (read with ()) - set() vs update() =…

Topic 15

🧪 Khud Try Karo!

🔮 Exercise 1: Shopping Cart (Signals) ` 1. ProductListComponent banao — products signal…

Comparison

📌 12. Signals vs RxJS — Kab Kya Use Karein?

⚖️

Component local state: ✅ Best

⚖️

Template binding: ✅ Direct ()

⚖️

Derived/computed values: ✅ computed()

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quick Quiz

Quiz — Question 1

📘 Angular — Signals Deep Dive ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

📘 Angular — Signals Deep Dive ka 'SIG -->' kya hai?

Complete! 🎉

📘 Angular — Signals Deep Dive Complete!

Aliens School · HIEN · Cinematic Knowledge

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