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# remove(at:)

Removes and returns the element at the specified position.

```
@discardableResult mutating func remove(at index: Int) -> Element
```

## Parameters

`index`

The position of the element to remove. `index` must be
a valid index of the array that is not equal to the end index.

## Return Value

The removed element.

## Discussion

All the elements following the specified position are moved to close the
gap.

> Complexity: O(`self.count`)

---

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