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Dependency Injection

Dependency Injection (DI) ek design pattern hai jisme kisi class/module ko apni dependencies khud…

Overview

Dependency Injection — Quick Facts

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Property: Detail

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Name: Dependency Injection (DI)

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Category: Design Pattern, Software…

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Principle: Inversion of Control (IoC)

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Infobox

📚 | Property | Detail | |---|---| | Name | Dependency Injection (DI) | | Category | Design…

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Simple Explanation

💡 Real-Life Analogies | Analogy | Without DI | With DI | |---|---|---| | Restaurant Chef |…

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Without DI vs With DI

🎯 | Aspect | Without DI (Tight Coupling) | With DI (Loose Coupling) | |---|---|---| |…

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How DI Works — Mermaid Diagram

⭐ `mermaid flowchart TB subgraph CONTAINER["DI Container (IoC Container)"]…

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Types of Dependency Injection

🔑 | Type | How It Works | When to Use | Pros | Cons | |---|---|---|---|---| | Constructor…

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Inversion of Control (IoC)

✨ DI ek specific implementation hai IoC principle ki. | Concept | Traditional Flow |…

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DI Containers / Frameworks

🌟 | Language | DI Framework | Notes | |---|---|---| | Java | Spring Framework, Guice |…

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Benefits

🚀 | Benefit | Explanation | |---|---| | Testability | Mock objects inject karo — unit tests…

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Trade-offs

📚 | Trade-off | Detail | |---|---| | Learning curve | DI concept + container API seekhna…

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Best Practices

💡 1. Constructor injection prefer karo. Mandatory dependencies hamesha constructor me.…

Comparison

Without DI vs With DI

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Dependency creation: Class khud create…

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Flexibility: Database change karna =…

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Testing: Real database chahiye testing…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quiz — Question 1

Dependency Injection ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

Dependency Injection ka 'Name' kya hai?

Complete! 🎉

Dependency Injection Complete!

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