# BEGIN used in HTree

**URL:** <https://www.ruby-forum.com/t/begin-used-in-htree/159905>\
**Category:** IronRuby\
**Created:** [February 9, 2009, 11:08pm UTC](https://www.ruby-forum.com/t/begin-used-in-htree/159905 "2009-02-09T23:08:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Shri\_B](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/898d66/32.png) [@Shri\_B](https://www.ruby-forum.com/u/Shri_B)\
**Post date:** [February 9, 2009, 11:08pm UTC](https://www.ruby-forum.com/t/begin-used-in-htree/159905/1 "2009-02-09T23:08:50Z")

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IronRuby does not currently support BEGIN/END. HTree uses BEGIN like  
this to syntax check if code\_to\_syntax\_check contains valid Ruby code.  
eval(“BEGIN { return true }\n#{code\_to\_syntax\_check}”)

Is there any difference to just using this?  
eval(“return true\n#{code\_to\_syntax\_check}”)

I thought we had added BEGIN/END to  
[http://www.ironruby.net/About/Roadmap](http://www.ironruby.net/About/Roadmap). I don’t see it though. Will add  
it.

Thanks,  
Shri