From the course: Build Modern Web Apps with React, Hooks, State Management, and APIs Using Vite or Next.js
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Custom hook introduction
From the course: Build Modern Web Apps with React, Hooks, State Management, and APIs Using Vite or Next.js
Custom hook introduction
Hello and welcome to lesson number 10. In this lesson, we'll understand what custom hooks are and how we can do the reusable logic while building them. Custom hooks are like a simple JavaScript function that start with a use keyword and allow you to reuse stateful logic across the components. I want you to remember and think of the functional way of doing programming. If you remember while coding in JavaScript, you should remember that at times you have a single function or the main function which has become fatty and you have a lot of logic inside that function. So when told to make it look optimized and some reusability inside the code, we usually do multiple functions and distribute the logic that is needed for the single each function. For example, you have a function to calculate something. Then all the calculation logic can go to that one function and inside your main function, you can just call the calculate function. And then you have a print logic and then you can change that…
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Contents
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Introduction to hooks wrapper hell5m 56s
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Complex lifecycle logic5m 11s
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This keyword confusion3m 55s
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useState hook6m 3s
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Lazy initialization3m 58s
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Managing objects8m 33s
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Managing arrays: Summary4m 7s
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useEffect hook: Introduction4m 6s
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useEffect problem9m 24s
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useEffect API calling5m 50s
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useEffect dependency arrays10m 34s
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useEffect cleanup function and summary5m 18s
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useContext introduction3m 50s
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Theme context: Implementing the provider9m 36s
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Theme switcher and header component6m 26s
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Use cases: Summary4m 52s
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useRef introduction: DOM elements6m 47s
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useRef timer example: Mutable values3m 55s
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useRef common cases and comparison with useState2m 26s
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useReducer introduction and syntax4m 46s
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useReducer vs useState: Basic example5m 59s
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useReducer status manager example14m 50s
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useReducer vs Redux: Summary4m 39s
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useMemo introduction6m 38s
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useMemo real-world example13m 58s
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useMemo dos and don'ts: Summary6m 13s
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useCallback introduction3m 41s
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useCallback example and understanding10m 41s
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useCallback summary and pitfalls3m 17s
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useImperativeHandle introduction4m 8s
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useImperative example and uses5m 25s
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useImperative common use case and summary4m 14s
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Custom hook introduction4m 54s
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Custom hook example and usage4m 55s
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Custom hook design principles4m 9s
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Custom hook pitfalls and summary4m 9s
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