String#split with block.rb

# Ruby 2.6 introduced String#split that allows it to take a block instead of just returning an array
# https://twitter.com/schneems/status/1078848803694882817

require 'benchmark/ips'

STRANG = "hello/there/hi/how/are/you/today".freeze

Benchmark.ips do |x|
  x.report("normal") { first_strang = STRANG.split("/".freeze).first }
  x.report("new   ") {
    first_strang = nil
    STRANG.split("/".freeze) { |x| first_strang = x; break }
  }

  x.compare!
end
# Warming up --------------------------------------
#               normal    95.432k i/100ms
#               new      196.820k i/100ms
# Calculating -------------------------------------
#               normal      1.204M (± 4.1%) i/s -      6.108M in   5.079671s
#               new         3.241M (± 3.8%) i/s -     16.336M in   5.047544s

# Comparison:
#               new   :  3241306.0 i/s
#               normal:  1204474.2 i/s - 2.69x  slower