Daniel P. Clark | Daniel P. Clark

May 29, 2016 by Daniel P. Clark

How to Build the Ultimate Remote Pair Programming Environment

There are a handful of desktop sharing apps out there and there are plenty of shell/editor sharing setups. But the biggest problem with these is you are opening up your own personal computer to not only the person(s) you’re connecting with, but also the potentially vulnerable or malicious technology you choose to use. A proper…

April 21, 2016 by Daniel P. Clark

Use Ruby’s Refinements Anywhere With An Anonymous Class

For a long time I’ve been looking for a way to use Ruby’s refinements without building a class & method setup and then instantiating an instance of the class just to use it. And now I’ve finally found a solution. module Moo refine Fixnum do def to_s “moo” end end end # begin/end blocks allow…

March 22, 2016 by Daniel P. Clark

Rails: Has One Through Polymorphic Relation

As I’ve described in my blog post “Rails Polymorphic Associations” I’ve stated that polymorphic relations in Rails are best for scenarios where a model may “belong to” one of many other kinds of model. So a Comment model with the polymorphic commentable relationship can belong to any other record in your Rails app. This is…

March 7, 2016 by Daniel P. Clark

Make the Impossible Possible

[Don’t Listen to the Naysayers.] How many times have you heard that you can’t do this and you can’t do that and it’s never been done before? I love it when someone says that no one has ever done this before, because then when I do it that means that I’m the first one that has…

February 2, 2016 by Daniel P. Clark

Ruby: Bindings Across Inheritance

One thing you will find yourself needing to do is work across different scopes and in different ways. I would like to show one way of modifying local variables by passing a Binding object. Let’s say you’re going to write encryption classes and you’ll have different ways of encrypting and decrypting. For these you will have…

January 13, 2016 by Daniel P. Clark

101 Ruby Code Factoids

0) ‘methods’ method Since almost everything in Ruby is an Object you can type dot methods on it to see what methods are available. 4.methods – Object.methods # => [:-@, :+, :-, :*, :/, :div, :%, :modulo, :divmod, :fdiv, :**, :abs, :magnitude, :~, :&, :|, :^, :[], :<<, :>>, :to_f, :size, :bit_length, :zero?, :odd?, :even?,…

December 12, 2015 by Daniel P. Clark

Ruby: Arrays by Example

Arrays are Ruby’s most used collection type. I will use very little description as I give examples for the many different ways to work with Arrays. Different ways to create an empty Array [] Array.new Array[] # same as :new Array(nil) # tries converting to an Array first and insures an Array result %w^^ #…

November 27, 2015 by Daniel P. Clark

Iterative Evaluation

In computer programming, an iterator is an object that enables a programmer to traverse a container, particularly lists. [1][2][3] -Wikipedia Gatcomb, Joshua. “Understanding and Using Iterators”. Perl.com. Archived fromthe original on 2005-06-16. Retrieved 2012-08-08. A user-defined iterator usually takes the form of a code reference that, when executed, calculates the next item in a list…

November 13, 2015 by Daniel P. Clark

Implement a Lazy Hash in Ruby

I use the term Lazy Hash in the same way you would call an Enumerator a lazy iterator. That being; the values don’t get evaluated until they are needed. In a Hash this is also utilizing memoization, where the value gets assigned the first time it’s used. E.G. @variable ||= :value Let’s say you own…

November 13, 2015 by Daniel P. Clark

Rails Rumble – the Experience

Rails Rumble is a yearly programming challenge. Each team is given 48 hours to complete and publish a website written in Ruby. You are permitted solo entry or up to 4 people as a team. You can do no coding of the project beforehand, but you can draw up and discuss plans as much as…

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