javascript / beginner
Snippet
Adding Items to Arrays (Spread)
To update an array in React state, you must create a new array. The spread operator (...) copies the old items into a new list alongside the new item.
snippet.js
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const [list, setList] = useState(['Apple']);const addFruit = (newFruit) => {setList([...list, newFruit]);};
react
Breakdown
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...list
The spread operator 'unpacks' the existing items from the original array.
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[...list, newFruit]
Creates a completely new array containing all old items plus the new one.