Performance testing of a javascript RegExp matching

regexp_performance.js

function strip1(name){
  return name.replace(/^(\/*)|(\/*)$/g, '')
}

function strip2(name){
  return name.replace(/^(\/+)|(\/+)$/g, '')
}

let str = "///packages/comm/packa/packages/packages/commocomm/packages/"

function measure(fn) {
  var tag = "Time of " + fn.name + ":"
  console.time(tag)
  for (let i = 0; i < 1000000; i++) {
    fn(str)
  }
  console.timeEnd(tag)
}

console.log('\nStrip with wildcard matching\n')
measure(strip1)

console.log('\nStrip with minimal matching\n')
measure(strip2)