diff options
Diffstat (limited to 'lib/library.rb')
| -rw-r--r-- | lib/library.rb | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/library.rb b/lib/library.rb index 4f1321a..f3765b5 100644 --- a/lib/library.rb +++ b/lib/library.rb @@ -8,4 +8,7 @@ class Library def contains(title) @books.find { |book| book.is_titled?(title) } != nil end + def find_all_matching(criteria) + @books.find_all {|book| criteria.is_satisfied_by book } + end end |