ruby eq strings

gistfile1.rb

require 'benchmark'

N = 10000

STRING = "cat"
DAT = "cat"

puts "#{STRING} vs #{DAT}"

Benchmark.bmbm do |x| 

  x.report("==") { N.times {
    "cat" == "cat"
  } } 

  x.report("== const") { N.times {
    DAT == STRING
  } } 

  x.report("regexp") { N.times {
    DAT =~ /^cat$/
  } } 

  x.report("match") { N.times {
    DAT.match STRING
  } } 

end

#               user     system      total        real
# ==         0.000000   0.000000   0.000000 (  0.002899)
# == const   0.010000   0.000000   0.010000 (  0.001940)
# regexp     0.000000   0.000000   0.000000 (  0.005289)
# match      0.020000   0.000000   0.020000 (  0.013405)