React Context Best Practices

React Context provides component-tree-wide state sharing. Here's how to use it effectively.

Creating Context#

Splitting State and Dispatch#

Memoizing Context Value#

Composing Multiple Providers#

Context with Initialization#

Context with Selectors#

Testing Context#

Context with Persistence#

Common Pitfalls#

Best Practices#

Conclusion#

React Context is powerful for sharing state across components. Split contexts by update frequency, memoize values and callbacks, and always create custom hooks for consuming context. For high-frequency updates or complex state, consider dedicated state management libraries.