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# init(keyOptions:valueOptions:capacity:)

Returns a map table, initialized with the given options.

```
init(keyOptions: NSPointerFunctions.Options = [], valueOptions: NSPointerFunctions.Options = [], capacity initialCapacity: Int)
```

## Parameters

`keyOptions`

A bit field that specifies the options for the keys in the map table. For possible values, see [`NSMapTableOptions`](/documentation/Foundation/NSMapTableOptions).

`valueOptions`

A bit field that specifies the options for the values in the map table. For possible values, see [`NSMapTableOptions`](/documentation/Foundation/NSMapTableOptions).

`initialCapacity`

The initial capacity of the map table. This is just a hint; the map table may subsequently grow and shrink as required.

## Return Value

A map table initialized using the given options.

## Discussion

`values` must contain entries at all the indexes specified in `keys`.

## See Also

  [Collections Programming Topics](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Collections/Collections.html#//apple_ref/doc/uid/10000034i)


---

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