React HooksLesson 54Free preview

React Custom Hooks

This lesson is part of React · All levels

Summary

Custom Hook is a common JavaScript function that calls other Hooks in, so that repeating logic can be reused in many components. A custom hook can return multiple values at once in the form of an array or object. Because it's a function, the states in it stay separate for each caller.

Key points

The name must be prefixed to use to enforce Hooks' rules.
You can call the other Hooks in.
Returns the state or function required by the caller
Logic is tested and reusable between components.

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