# Code Review: MutableStringConcatPerf2

**URL:** <https://www.ruby-forum.com/t/code-review-mutablestringconcatperf2/183221>\
**Category:** IronRuby\
**Created:** [February 10, 2010, 5:35am UTC](https://www.ruby-forum.com/t/code-review-mutablestringconcatperf2/183221 "2010-02-10T05:35:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![grujildo](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/g/94ad74/32.png) [@grujildo](https://www.ruby-forum.com/u/grujildo)\
**Post date:** [February 10, 2010, 5:35am UTC](https://www.ruby-forum.com/t/code-review-mutablestringconcatperf2/183221/1 "2010-02-10T05:35:33Z")

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tfpt review “/shelveset:MutableStringConcatPerf2;REDMOND\tomat”  
Comment :  
Improves perf of String#+

Tomas