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Fix out-of-bounds error on the page /learn/state-a-components-memory #8636

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Fix out-of-bounds error on the page /learn/state-a-components-memory #8636

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14 changes: 7 additions & 7 deletions src/content/learn/state-a-components-memory.md
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Original file line number Diff line number Diff line change
Expand Up @@ -190,11 +190,11 @@ const [index, setIndex] = useState(0);

> The `[` and `]` syntax here is called [array destructuring](https://javascript.info/destructuring-assignment) and it lets you read values from an array. The array returned by `useState` always has exactly two items.

This is how they work together in `handleClick`:
This is how they work together in `handleClick` (`% sculptureList.length` is used to return to the first item when the index exceeds the list index):

```js
function handleClick() {
setIndex(index + 1);
setIndex((index + 1) % sculptureList.length);
}
```

Expand All @@ -210,7 +210,7 @@ export default function Gallery() {
const [index, setIndex] = useState(0);

function handleClick() {
setIndex(index + 1);
setIndex((index + 1) % sculptureList.length);
}

let sculpture = sculptureList[index];
Expand Down Expand Up @@ -394,7 +394,7 @@ export default function Gallery() {
const [showMore, setShowMore] = useState(false);

function handleNextClick() {
setIndex(index + 1);
setIndex((index + 1) % sculptureList.length);
}

function handleMoreClick() {
Expand Down Expand Up @@ -759,7 +759,7 @@ export default function Gallery() {
const [showMore, setShowMore] = useState(false);

function handleNextClick() {
setIndex(index + 1);
setIndex((index + 1) % sculptureList.length);
}

function handleMoreClick() {
Expand Down Expand Up @@ -930,7 +930,7 @@ export default function Gallery() {
const [showMore, setShowMore] = useState(false);

function handleNextClick() {
setIndex(index + 1);
setIndex((index + 1) % sculptureList.length);
}

function handleMoreClick() {
Expand Down Expand Up @@ -1082,7 +1082,7 @@ export default function Gallery() {

function handleNextClick() {
if (hasNext) {
setIndex(index + 1);
setIndex((index + 1) % sculptureList.length);
}
}

Expand Down
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