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Diffstat (limited to 'guides/source/active_support_core_extensions.md')
| -rw-r--r-- | guides/source/active_support_core_extensions.md | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/guides/source/active_support_core_extensions.md b/guides/source/active_support_core_extensions.md index 9b93a94cf1..401e6f0596 100644 --- a/guides/source/active_support_core_extensions.md +++ b/guides/source/active_support_core_extensions.md @@ -148,7 +148,9 @@ Active Support provides `duplicable?` to programmatically query an object about ```ruby "foo".duplicable? # => true +"".duplicable? # => true 0.0.duplicable? # => false +false.duplicable? # => false ``` By definition all objects are `duplicable?` except `nil`, `false`, `true`, symbols, numbers, class, and module objects. |