State Management · Junior · Question 52 of 75

When should two pieces of state be combined into one object?

✓Correct answer: When they always change together (e.g. x and y of a pointer position)
2Always - one state variable per component is the rule
3Never - objects in state are forbidden

Explanation

Grouping related values avoids forgetting to update one of them. Unrelated values are simpler as separate useState calls.

Further reading

react.dev: Choosing the State Structure ↗

Test yourself

Take the State Management · Junior quiz: questions and options are shuffled, and you get a review of your mistakes at the end.