Closures are functions that remember the variables from where they were created - like functions with memory.
Stale closures happen when your function is using outdated values from its memory instead of current values.
Functional updates in React (setCount(count => count + 1)) ensure you're always working with the most current state.
Use functional updates when the new state depends on the previous state
Be especially careful with closures in async operations and event handlers
When in doubt, console.log your values to check for stale closures
React components use closures to remember their state and props
Stale closures can lead to bugs when state updates don't work as expected
Functional updates provide a reliable solution for working with the latest state
Remember: When updating state based on its previous value, prefer functional updates. It's like having a reliable assistant who always checks the current value before making changes, rather than working from memory!