benchmark/hash_new.yml


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prelude: |
  has_hash_with_capa = Hash.instance_method(:initialize).parameters.include?([:key, :capacity])
  strings_1k = 1_000.times.map { |i| -i.to_s.freeze }
  strings_100k = 100_000.times.map { |i| -i.to_s.freeze }
benchmark:
  new: Hash.new
  new_with_capa_1k: |
    h = has_hash_with_capa ? Hash.new(capacity: strings_1k.size) : {}
    strings_1k.each do |x|
      h[x] = true
    end
  new_with_capa_100k: |
    h = has_hash_with_capa ? Hash.new(capacity: strings_100k.size) : {}
    strings_100k.each do |x|
      h[x] = true
    end