ruby Archives - Page 8 of 19

Running pod setup gives me “bad interpreter: No such file or directory” error

Recently I tried to do pod setup and I get this error: -bash: /usr/local/bin/pod: /usr/local/opt/ruby/bin/ruby: bad interpreter: No such file or directory I ...

May 21, 2022
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How to execute a Ruby script in Terminal?

I’ve set everything up that I need on my Mac (Ruby, Rails, Homebrew, Git, etc), and I’ve even written a small program. Now, ...

May 21, 2022
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How can I output leading zeros in Ruby?

I’m outputting a set of numbered files from a Ruby script. The numbers come from incrementing a counter, but to make them sort ...

May 21, 2022
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Ruby: Easiest Way to Filter Hash Keys?

I have a hash that looks something like this: params = { :irrelevant => "A String", :choice1 => "Oh look, another one", :choice2 ...

May 21, 2022
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sqlite3-ruby install error on Ubuntu

I have the following error during sqlite3-ruby install: Building native extensions. This could take a while... ERROR: Error installing sqlite3-ruby: ERROR: Failed to ...

May 21, 2022
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What does the “map” method do in Ruby?

I’m new to programming. Can someone explain what .map would do in: params = (0...param_count).map 8 Answers 8

May 20, 2022
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Rspec: “array.should == another_array” but without concern for order

I often want to compare arrays and make sure that they contain the same elements, in any order. Is there a concise way ...

May 20, 2022
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What is the colon operator in Ruby?

When I say { :bla => 1, :bloop => 2 }, what exactly does the : do? I read somewhere about how it’s ...

May 20, 2022
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Read binary file as string in Ruby

I need an easy way to take a tar file and convert it into a string (and vice versa). Is there a way ...

May 20, 2022
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How to read lines of a file in Ruby

I was trying to use the following code to read lines from a file. But when reading a file, the contents are all ...

May 20, 2022
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