Conditional Hook Issue

Learn about practical applications of conditional hooks and understand scenarios where they might not be the optimal solution.

We'll cover the following

Conditional hook I
- Updated application I
Conditional hook II
- Updated application II
Code explanation

React relies on the order of hooks to serve as keys, eliminating the need for explicit key usage. This means that if hook A is called first and hook B is called second, the order of states is appropriately marked. While this design is convenient, it comes with a caveat: the calling order is determined at runtime, not during code compilation. This runtime variability is a potential concern, but with awareness and careful coding practices, this design remains highly functional. To give an example, we can set up a case using an if statement.

Conditional hook I

Let's say we have the following Title component with two usages of hooks:

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Prologue

Introducing the Function Component

Crafting States in Functions

Hooking into React

Use State to Jumpstart Components

Use Effect to Handle Side Effects

Use Memo to Boost Performance

Use Context to Cover an Area

Use Ref to Hide Stuff

Use Custom Hooks to Reuse Logic

Conclusion

Appendix: Exploring JavaScript and React

Conditional Hook Issue

Conditional hook I