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React Hooks - Phase 2

Welcome back! You're on Phase 2 of your React learning plan. Let's pick up where we left off with custom hooks.

Yes! I want to understand when to extract logic into a custom hook.

Great question. A custom hook makes sense when you notice duplicated stateful logic across components. Let me show you a pattern.

+3 XP earned

Consider this: you have 3 components each with a similar useEffect for fetching data. What would you extract?

Adaptive question - Intermediate

Type your answer...

3 LC

Phase 2 Progress

62%

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Explain React hooks

React hooks are functions that let you use state and lifecycle features...

No skill tracking

No adaptive difficulty

No learning structure

No proof of learning

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Diagnostic

Let me assess your current understanding of hooks...

Adapting to Intermediate

Good! You know the basics. Let's work on custom hooks and patterns.

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Diagnostic·React Hooks

Intermediate

3of 10

What does useEffect return?

A cleanup function

A state value

A ref object

30%

Diagnostic assessment

The tutor starts by identifying your current level with targeted questions before building your plan.

Your Learning Path62%

Fundamentals8/8

Custom Hooks5/5

State Patterns3/7

Performance0/6

Overall mastery16/26

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A custom learning path is generated based on your gaps, goals, and preferred pace.

AI Tutor· React Hooks

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The cleanup runs after every render.

Almost! The cleanup runs before re-renders and on unmount – not after every render.

Think about when you need to clean up event listeners.

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Get instant, contextual feedback on every answer. The tutor explains why, not just what.

Skill Verified

React Hooks

SCI contribution

+18

Credibility72 / 100

12 questions passed

3 practice sessions

2 code reviews

Added to passport

Competency proof

Every completed module generates a verifiable evidence event that feeds into your SCI score.

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