Programming Groovy 2

6.7 Other Convenience Methods on ​Map​s

Let’s wrap up our discussion of collections by looking at a few convenience methods of ​Map​.

We saw how the ​find​ method is useful for fetching an element that satisfies a given condition. However, instead of getting the element, if we’re simply interested in determining whether any elements in the collection satisfy some condition, we can use the ​any​ method.

Let’s continue with the example of languages and authors from Section 6.6, ​Iterating Over Map​. We can use the ​any​ method to determine whether any language name has a nonalphabetic character:

print "Does any language name have a nonalphabetic character? "
println langs.any { language, author ...