strformat_speed

import strutils, strformat, sequtils, times

template times(repetitions: int, code2repeat: untyped): untyped =
  let start_time = cpuTime()
  for i in 0..repetitions:
    code2repeat
  echo cpuTime() - start_time

100.times:
  discard """Lorem""" & """ipsum""" & """dolor""" & """sit""" & """a""" & """amet,""" & """de""" & """consectetur""" & """adipiscing""" & """elit."""

100.times:
  discard fmt"""{"Lorem"}{"ipsum"}{"dolor"}{"sit"}{"a"}{"amet,"}{"de"}{"consectetur"}{"adipiscing"}{"elit."}"""

100.times:
  discard """$1$2$3$4$5$6$7$8$9$10""".format(
    "Lorem", "ipsum", "dolor", "sit", "a", "amet,", "de", "consectetur", "adipiscing", "elit.")

100.times:
  discard ["Lorem", "ipsum", "dolor", "sit", "a", "amet,", "de", "consectetur", "adipiscing", "elit."].join