Module: Charty::Util

Defined in:
lib/charty/util.rb

Class Method Summary collapse

Class Method Details

.filter_map(enum, &block) ⇒ Object 



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# File 'lib/charty/util.rb', line 4

module_function def filter_map(enum, &block)
  enum.inject([]) do |acc, x|
    y = block.call(x)
    if y
      acc.push(y)
    else
      acc
    end
  end
end

.missing?(val) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/charty/util.rb', line 20

module_function def missing?(val)
  val.nil? || nan?(val)
end

.nan?(val) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/charty/util.rb', line 24

module_function def nan?(val)
  val.respond_to?(:nan?) && val.nan?
end