diff options
| -rw-r--r-- | lib/set.rb | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/set.rb b/lib/set.rb index c86578c716..a5d4a7730a 100644 --- a/lib/set.rb +++ b/lib/set.rb @@ -212,7 +212,8 @@ class Set end end - # Deletes the given object from the set and returns self. + # Deletes the given object from the set and returns self. Use +subtract+ to + # delete several items at once. def delete(o) @hash.delete(o) self @@ -282,7 +283,7 @@ class Set alias union | ## # Returns a new set built by duplicating the set, removing every - # element that appear in the given enumerable object. + # element that appears in the given enumerable object. def -(enum) enum.is_a?(Enumerable) or raise ArgumentError, "value must be enumerable" dup.subtract(enum) |