State mutation in setState

Code reviewAlgorithms & data structuresMid–Senior~18 min

Review this React TypeScript component.

What a strong answer looks like

Separate real bugs from style. Rank issues by severity, point at the root cause rather than the symptom, and suggest a concrete fix, specific and kind.

0:00 of about 18 min

Mark a line and say what kind of problem it is.0 findings

1function Cart() {

2 const [items, setItems] = useState<Item[]>([]);

4 const addItem = (item: Item) => {

5 items.push(item);

6 setItems(items);

7 };

9 return <button onClick={() => addItem(newItem())}>Add ({items.length})</button>;

10}

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