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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Ruby - where one statement ends and the next begins

In Ruby, you can end your statements with a ;, but it's more usual to simply let them end at the end of a line. Ruby can usually identify where a statement ends and if it clearly doesn't end on one line, it carries on to the next.

Just occasionally, this can be little bit of a trap. Look at this code with teo apparently identicsl statements giving different results. Why?

  a = 5
  b = a
    + 6
  puts b
  b = a +
    6
  puts b
  
  __END__
  
  trainee@kingston:~/lrp$ ruby ld
  5
  11
  trainee@kingston:~/lrp$


The answer is that Ruby has split the first "statement" into two - whereas the second example clearly continued from one line to the next and was treated as a single statement.

It's great to be teaching Ruby this week - see our Ruby Courses ... and I'll be going on to Cucumber and Gherkin over the next couple of days.
(written 2015-05-26, updated 2015-05-27)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
R101 - Ruby - Introduction
  [550] 2006 - Making business a pleasure - (2006-01-01)
  [664] Ruby course - oops - it's not happening - (2006-04-01)
  [1027] Cue the music, I'm happy. - (2007-01-09)
  [1041] Learnt in London - Ruby, Martini, Coral and the Core - (2007-01-17)
  [1302] Ruby, Ruby, Ruby. Rails, Rails, Rails. - (2007-08-13)
  [1375] Python v Ruby - (2007-10-02)
  [1887] Ruby Programming Course - Saturday and Sunday - (2008-11-16)
  [2286] New to programming? It is natural (but needless) for you to be nervous - (2009-07-14)
  [2287] Learning to program in Ruby - examples of the programming basics - (2009-07-15)
  [2607] Answers on Ruby on Rails - (2010-01-30)
  [4369] Ruby - the second rung of learning the language - (2014-12-28)


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Significant work - beyond helloworld in Ruby
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Reading and parsing a JSON object in Ruby
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Significant work - beyond helloworld in Ruby
Ruby - where one statement ends and the next begins
Around the world from Melksham
Sunday train times - 17th May to 6th September 2015
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Forgotten / lost MySQL root password
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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