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Overlap an image over a QR code using Mogrify
Learn to overlap an image over QR code using Mogrify in Elixir
Switching an existing Phoenix app from Brunch to Webpack
Learn to switch an existing Phoenix app from Brunch to Webpack
Ruby 2.6 KeyError#initialize accepts message, receiver, and key as arguments
Learn about KeyError#initialize method which accepts :message, :receiver and :key as options to set message, receiver and key on KeyError object.
Ruby 2.5 adds KeyError#receiver and KeyError#key
Learn about KeyError#receiver which returns receiver associated with the KeyError object & KeyError#key returns the key which caused the exception
Ruby 2.6 added options to Exception#full_message
Learn about options which Expection#full_message accepts
Ruby 2.6 adds Matrix#antisymmetric?
Ruby 2.6.0-preview2 was recently [released][ruby_release]. A matrix according to [Wikipedia][matrix_wiki] is a rectangu...
Kernel#system now accepts exception flag as an argument
Ruby 2.6.0-preview1 was recently [released][ruby_release]. Using Kernel#system we can execute terminal commands. It ex...
Using Ruby 2.5's IO#close
Ruby 2.5 was recently [released][ruby_release]. IO class is the basis for all input and output. You can use the publ...
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