ruby Archives - Page 12 of 19

Ruby: What does the comment “frozen_string_literal: true” do?

This is the rspec binstub in my project directory. #!/usr/bin/env ruby begin load File.expand_path("../spring", __FILE__) rescue LoadError end # frozen_string_literal: true # # ...

May 14, 2022
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Ruby ampersand colon shortcut [duplicate]

This question already has answers here: Closed 9 years ago. Possible Duplicate: What does map(&:name) mean in Ruby? In Ruby, I know that ...

May 13, 2022
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Getting output of system() calls in Ruby

If I call a command using Kernel#system in Ruby, how do I get its output? system("ls") 16 Answers 16

May 13, 2022
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When to use lambda, when to use Proc.new?

In Ruby 1.8, there are subtle differences between proc/lambda on the one hand, and Proc.new on the other. What are those differences? Can ...

May 12, 2022
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rbenv not changing ruby version

I installed rbenv according to the github directions. I am running OSX but I have tried this on a Ubuntu 12.04 VM and ...

May 12, 2022
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How to implement Enums in Ruby?

What’s the best way to implement the enum idiom in Ruby? I’m looking for something which I can use (almost) like the Java/C# ...

May 12, 2022
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Difference between “and” and && in Ruby?

What is the difference between the && and and operators in Ruby? 8 Answers 8

May 12, 2022
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In Ruby, how do I skip a loop in a .each loop, similar to ‘continue’ [duplicate]

This question already has answers here: Equivalent of “continue” in Ruby (7 answers) Closed 5 years ago. In Ruby, how do I skip ...

May 11, 2022
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How can I install a local gem?

If I download a .gem file to a folder in my computer, can I install it later using gem install? 9 Answers 9

May 11, 2022
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Should I use alias or alias_method?

I found a blog post on alias vs. alias_method. As shown in the example given in that blog post, I simply want to ...

May 11, 2022
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