Ruby closure scope and other ideas


In Ruby you can have closures with a Block, a Proc or a Lambda. They are very similar and have subtle differences.
I've found this article very clear to me: Understanding Ruby Blocks, Procs and Lambdas


In short, for what I understood, Blocks cannot have parameters and ( http://pastie.org/3107157 ) cannot be stored while Procs can like Lambdas.
Blocks cannot execute a return statement, Procs can and the calling method will return, Lambdas can too and simply return the value to the calling method.



Here are the scope examples


For me this has been the year of Social Complexity, C# 4.0, some Functional programming and testing, JavaScript, Ajax, Smalltalk and now Ruby.
For the new year I see coming Sinatra, Mac, Linux, Lean-Startup, more Agile Coaching, Mentoring and more management.
Let's see what it comes


See also: JavaScript: closure scope  and other ideas


Print | posted @ Saturday, December 31, 2011 6:40 AM

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