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# init(capacity:)

Returns an initialized mutable ordered set with a given initial capacity.

```
init(capacity numItems: Int)
```

## Parameters

`numItems`

The initial capacity of the new ordered set.

## Return Value

An initialized mutable ordered set with initial capacity to hold `numItems` members.

## Discussion

Mutable ordered sets allocate additional memory as needed, so `numItems` simply establishes the set’s initial capacity.

This method is a designated initializer of `NSMutableOrderedSet`.

## See Also

[`+  orderedSetWithCapacity:`](/documentation/Foundation/NSMutableOrderedSet/orderedSetWithCapacity:)

Creates and returns an mutable ordered set with a given initial capacity.


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