keys-2
Use keys-2 as a keyset predicate function to determine if there are at least two keys that match the keys defined in a keyset.
Basic syntax
To check whether there are at least two keys that match the keys defined in a keyset, use the following syntax:
keys-2 count matched
Arguments
Use the following arguments to specify the count of keys in the keyset and the number of matched keys using the keys-2 Pact function.
| Argument | Type | Description |
|---|---|---|
count | integer | Specifies the total count of keys defined in the keyset. |
matched | integer | Specifies the number of matched keys. |
Return value
The keys-2 function returns a boolean value indicating whether there are at least two keys that match the keys defined in the keyset.
Examples
The following example demonstrates how to use the keys-2 to check if at least two keys are matched in a keyset where the total number of keys defined in a keyset is three and only one key is matched:
pact> (keys-2 3 1)
false
The function returns false because the condition of having at least two keys matched is not met.