Persist data client-side in React with useLocalStorageState

Antonio Stoilkov Follow Antonio on Twitter built an excellent React hook for persisting state in local storage.

It's called useLocalStorageState and it works just like useState, but page navigations and refreshes won't reset it.

Let's look at a simple example of a form that needs a title and description.

These are both uncontrolled inputs, so we're using defaultValue to set the initial value.
We're also using onChange to track any updates in our state.

If the user refreshes the page before they submit the form, they won't lose any of their work.

jsx

import { useLocalStorageState } from "use-local-storage-state"
export default function Page() {
  const [title, setTitle] = useLocalStorageState("title", {
    defaultValue: "",
  })
  const [description, setDescription] =
    useLocalStorageState("description", {
      defaultValue: "",
    })
  return (
    <form
      method="POST"
      onSubmit={(event) => {
        setTitle()
        setDescription()
      }}
    >
      <label>
        Title
        <input
          type="text"
          defaultValue={title}
          onChange={(e) => setTitle(e.target.value)}
        />
      </label>
      <label>
        Description
        <input
          type="text"
          defaultValue={description}
          onChange={(e) => setDescription(e.target.value)}
        />
      </label>
      <button type="submit">Submit</button>
    </form>
  )
}