aboutsummaryrefslogtreecommitdiffstats
path: root/activesupport/lib/active_support/core_ext/blank.rb
diff options
context:
space:
mode:
Diffstat (limited to 'activesupport/lib/active_support/core_ext/blank.rb')
-rw-r--r--activesupport/lib/active_support/core_ext/blank.rb14
1 files changed, 10 insertions, 4 deletions
diff --git a/activesupport/lib/active_support/core_ext/blank.rb b/activesupport/lib/active_support/core_ext/blank.rb
index 80feaf5cc6..d2a940f5b9 100644
--- a/activesupport/lib/active_support/core_ext/blank.rb
+++ b/activesupport/lib/active_support/core_ext/blank.rb
@@ -1,6 +1,12 @@
-class Object
- # "", " ", nil, [], and {} are blank
- def blank? #:nodoc:
+class Object
+ # An object is blank if it's nil, empty, or a whitespace string.
+ # For example, "", " ", nil, [], and {} are blank.
+ #
+ # This simplifies
+ # if !address.nil? && !address.empty?
+ # to
+ # if !address.blank?
+ def blank?
if respond_to?(:empty?) && respond_to?(:strip)
empty? or strip.empty?
elsif respond_to?(:empty?)
@@ -47,4 +53,4 @@ class Numeric #:nodoc:
def blank?
false
end
-end \ No newline at end of file
+end