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A Complete Program // Richard Mavis dot info

A Complete Program // Richard Mavis dot info I can’t remember who said it but there’s a saying about writing that goes something like “One does not complete a book, one abandons it.” Writing programs can sometimes feel similar—you might always think of parts of the interface you could improv...

Timeseries in Redis with Streams

Timeseries in Redis with Streams Redis Streams represent an append-only timeseries of key-value pairs.Any number of clients can write to a Stream and each time they do they receive a unique ascending ID of the item that was inserted into the timeseries.Clients reading data can bl...

Run.rb - Jason Charnes

Run.rb - Jason Charnes I’m proud to be involved in the Ruby community.I want to do what I can to help other developers discover Ruby. Whether that’s seasoned non-Ruby developers or people like me who stumble into programming, I want to help.As part of that, I’ve recentl...

How to keep your ActiveRecord migrations clean

How to keep your ActiveRecord migrations clean Keeping all of the changes histories may be not worth it, you really don’t need to know about every change made by your colleague who did a dozen of migrations because he could not find the best name for one of the fields in some model or switched...

Understanding the Eigenclass in less than 5 minutes

Understanding the Eigenclass in less than 5 minutes So, how a class makes the difference between class-level and object-level methods, variables .

Lambda composition in ruby 2.6

Lambda composition in ruby 2.6 The new proc composition operators: << and >> - a small feature that can easily be overlooked.We recently updated a sizeable application to ruby 2.5, which opened up some nice features for us, such as the yield_self feature.But I also wanted to ha...

Rails 6 adds ActiveRecord::Relation pick

Rails 6 adds ActiveRecord::Relation pick Before Rails 6, selecting only the first value for a column from a set of records was cumbersome. Let’s say we want only the first name from all the posts with category “Rails 6”.

Ruby 2.6 Ubuntu packages

Ruby 2.6 Ubuntu packages Each year, on the 25th of December, the Ruby community receives the gift of a new release of Ruby. 2018 was no exception, and Ruby 2.6.0 arrived as promised.And like every other release, we’ve packaged it for Ubuntu and released it to our Ruby Ubu...

Ruby 2.6 changes - Ruby Changes

Ruby 2.6 changes - Ruby Changes Note: As already explained in Introduction, this site is dedicated to changes in the language, not the implementation, therefore the list below lacks mentions of lots of important optimization introduced in 2.6, including the whole JIT big thing. ...

Why is Ruby on Rails A Pitch Perfect Back End Technology?

Why is Ruby on Rails A Pitch Perfect Back End Technology? Clients asks why we choose to use Ruby on Rails to develop web applications instead of all the other frameworks and languages. There are many reasons, but before I start the discussion about the advantages and disadvantages of Ruby on Rails, I sho...

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