Module: DaruLite::ArrayHelper

Defined in:
lib/daru_lite/helpers/array.rb

Class Method Summary collapse

Class Method Details

.array_of?(array, match) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/daru_lite/helpers/array.rb', line 34

def array_of?(array, match)
  array.is_a?(Array) &&
    !array.empty? &&
    array.all? { |el| match === el } # rubocop:disable Style/CaseEquality,Performance/RedundantEqualityComparisonBlock
end

.recode_repeated(array) ⇒ Object

Recode repeated values on an array, adding the number of repetition at the end Example:

a=%w{a b c c d d d e}
a.recode_repeated
=> ["a","b","c_1","c_2","d_1","d_2","d_3","e"]



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# File 'lib/daru_lite/helpers/array.rb', line 11

def recode_repeated(array)
  return array if array.size == array.uniq.size

  # create hash of { <name> => 0}
  # for all names which are more than one time in array
  counter = array
            .group_by(&:itself)
            .select { |_, g| g.size > 1 }
            .keys
            .to_h { |n| [n, 0] }

  # ...and use this hash for actual recode
  array.collect do |n|
    if counter.key?(n)
      counter[n] += 1
      new_n = format('%<index>s_%<counter>d', index: n, counter: counter[n])
      n.is_a?(Symbol) ? new_n.to_sym : new_n
    else
      n
    end
  end
end

.sort_composite_data(array) ⇒ Object 



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# File 'lib/daru_lite/helpers/array.rb', line 40

def sort_composite_data(array)
  array.sort
rescue ArgumentError, TypeError => e
  case e.to_s
  when /comparison of Symbol with String failed/,
    /comparison of Symbol with \d+ failed/,
    /comparison of String with :.* failed/,
    /comparison of Integer with :.* failed/,
    /no implicit conversion from nil to integer/
    array.sort_by(&:to_s)
  end
end