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-rw-r--r--railties/guides/source/active_support_core_extensions.textile2
1 files changed, 1 insertions, 1 deletions
diff --git a/railties/guides/source/active_support_core_extensions.textile b/railties/guides/source/active_support_core_extensions.textile
index 7959a88c5b..fbccff5005 100644
--- a/railties/guides/source/active_support_core_extensions.textile
+++ b/railties/guides/source/active_support_core_extensions.textile
@@ -1301,7 +1301,7 @@ NOTE: Defined in +active_support/core_ext/string/output_safety.rb+.
h5. Transformation
-As a rule of thumb, except perhaps for concatenation as explained above, any method that may change a string gives you an unsafe string. These are +donwcase+, +gsub+, +strip+, +chomp+, +underscore+, etc.
+As a rule of thumb, except perhaps for concatenation as explained above, any method that may change a string gives you an unsafe string. These are +downcase+, +gsub+, +strip+, +chomp+, +underscore+, etc.
In the case of in-place transformations like +gsub!+ the receiver itself becomes unsafe.