Kelvin

Kelvin has asked 34 questions and find answers to 74 problems.

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About

My highest quality (though not most highly upvoted) answer: https://stackoverflow.com/a/21296598
Took a lot of sleuthing but it was satisfying to figure it out.

Kelvin questions

Is unary minus supposed to have higher precedence for numeric literals?
In vim, how do I copy the regular expression pattern?
Ruby: Why does equals sign in literal regexp cause parsing error?
Ruby ActiveRecord and sql tuple support
ruby 1.9 - what is easiest inverse of `string.codepoints.to_a`?
Ruby: Automatically set instance variable as method argument?
In bash, how do I open a writable file descriptor that's externally redirectable?
Ruby: Limiting a UTF-8 string by byte-length
Understanding struct-field mutation
How do I get the class of a BasicObject instance?

Kelvin answers

Which approach is better in terms of performance to modify a hash, is it `Hash#merge` or double splat operator?
Netbeans: Apply HTML code on highlighted text
Undefined method `all' for ActiveSupport in Rails 4.0.0 app
rbenv: no such command `init'
Error upgrading ruby version: undefined method `yaml_as'
Ruby Gem - LoadError
Rspec: access to instance inside Klass.any_instance.stub block
How do I install ruby gem libxml without 'extconf failure: need libxml2'
Dynamically set local variables in Ruby [duplicate]
Ruby equivalent to grep -v