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# numberOfMatches(in:options:range:)

Returns the number of matches of the regular expression within the specified range of the string.

```
func numberOfMatches(in string: String, options: NSRegularExpression.MatchingOptions = [], range: NSRange) -> Int
```

## Parameters

`string`

The string to search.

`options`

The matching options to use. See [`NSRegularExpression.MatchingOptions`](/documentation/Foundation/NSRegularExpression/MatchingOptions) for possible values.

`range`

The range of the string to search.

## Return Value

The number of matches of the regular expression.

## Discussion

This is a convenience method that calls [`enumerateMatches(in:options:range:using:)`](/documentation/Foundation/NSRegularExpression/enumerateMatches(in:options:range:using:)).

---

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