Module: Enumerable

Defined in:
lib/gci-class-extensions.rb

Overview

Get the counts in an enumerable based on various criteria ex. ‘[1, 2, 3].count_by(&:even?)` should return `=> 1, false => 2`

Instance Method Summary collapse

Instance Method Details

#count_by(&block) ⇒ Object 



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# File 'lib/gci-class-extensions.rb', line 35

def count_by(&block)
  counts = {}
  grouped = group_by(&block)
  grouped.each do |key, vals|
    counts[key] = vals.size
  end
  
  counts
end