How to use a setState Updater Function with a Reducer Pattern

In this lesson we'll show how to create an updater function. We'll also dive into how to separate your state management logic into a separate reducer function much like how Redux operates. It will receive an action with a type, and any data and update state accordingly.

Liked this content?

Get notified more about React!

No Spam! We Promise!

Related Content

Create a useMousePosition Hook with useEffect and useState in React

In this lesson we'll explore how to combine useEffect with useState to create a reusable hook. It will listen add a window listener for mousemove and update state with each movement.

Create a componentDidMount useEffect hook in React

In this lesson we'll explore how to create useEffect call, and listen to the window for mouse movement. We'll learn about cleaning up our effects, and how to pass an empty array into the second argument of our effect to create a componentDidMount like effect. Finally we'll trigger a mount/unmount to show effects getting cleaned up correctly.

Create a useMousePosition Hook with useEffect and useState in React

In this lesson we'll explore how to combine useEffect with useState to create a reusable hook. It will listen add a window listener for mousemove and update state with each movement.

Create a componentDidMount useEffect hook in React

In this lesson we'll explore how to create useEffect call, and listen to the window for mouse movement. We'll learn about cleaning up our effects, and how to pass an empty array into the second argument of our effect to create a componentDidMount like effect. Finally we'll trigger a mount/unmount to show effects getting cleaned up correctly.