lib/traject/macros/transformation.rb
# prepend argument to beginning of each value in accumulator.
prepend argument to beginning of each value in accumulator.
prepend argument to beginning of each value in accumulator .
def prepend(prefix)
        lambda do |rec, acc|
          acc.collect! { |v| prefix + v }
        end
      end
def prepend ( prefix ) lambda do | rec , acc | acc . collect! { | v | prefix + v } end end
prepend argument to beginning of each value in accumulator.
prepend argument to beginning of each value in accumulator .
prefix
<not_specific>