# "abc".tr\_s!("x", "y") returns "abc"

**URL:** <https://www.ruby-forum.com/t/abc-tr-s-x-y-returns-abc/137227>\
**Category:** Development\
**Created:** [May 10, 2008, 11:56am UTC](https://www.ruby-forum.com/t/abc-tr-s-x-y-returns-abc/137227 "2008-05-10T11:56:48Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [May 10, 2008, 11:56am UTC](https://www.ruby-forum.com/t/abc-tr-s-x-y-returns-abc/137227/1 "2008-05-10T11:56:48Z")

</div>

“abc”.tr\_s!(“x”, “y”) e$B$,e(B “abc” e$B$rJV$7$^$9!#e(B

% ./ruby -ve ‘p “abc”.tr\_s!(“x”, “y”)’  
ruby 1.9.0 (2008-05-10 revision 16345) [i686-linux]  
“abc”

1.8 e$B$G$Oe(B nil e$B$G$9!#e(B

% ruby-1.8 -ve ‘p “abc”.tr\_s!(“x”, “y”)’  
ruby 1.8.7 (2008-05-07 patchlevel 5000) [i686-linux]  
nil