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snippets/react-use-state-with-label.md

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+---
+title: "Tip: Label your useState values in React developer tools"
+shortTitle: Labelling useState values
+type: tip
+tags: [react,hooks]
+author: chalarangelo
+cover: bunny-poster
+excerpt: When working with multiple `useState` hooks in React, things can get a bit complicated while debugging. Luckily, there's an easy way to label these values.
+dateModified: 2021-11-07T16:34:37+03:00
+---
+
+When working with multiple `useState()` hooks in React, things can get a bit complicated while debugging. Luckily, there's an easy way to label these values, using the `useDebugValue()` hook to create a custom `useStateWithLabel` hook:
+
+```jsx
+const useStateWithLabel = (initialValue, label) => {
+  const [value, setValue] = useState(initialValue);
+  useDebugValue(`${label}: ${value}`);
+  return [value, setValue];
+};
+
+const Counter = () => {
+  const [value, setValue] = useStateWithLabel(0, 'counter');
+  return (
+    <p>{value}</p>
+  );
+};
+
+ReactDOM.createRoot(document.getElementById('root')).render(
+  <Counter />
+);
+// Inspecting `Counter` in React developer tools will display:
+//  StateWithLabel: "counter: 0"
+```
+
+This hook is obviously meant mainly for development, but it can also be useful when creating React component or hook libraries. Additionally, you can easily abstract it in a way that the label is ignored in production builds. An example would be exporting a hook that defaults back to `useState()` when building for a production environment.