timethis (count, code[, title[, style]])
Runs a chunk of code several times. Always exported.
Takes the following arguments:
- count
The number of times to run the loop.
- code
The code to run, specified as either a code reference or a string.
- title
The title of the result; default is "timethis COUNT".
- style
Determines the format of the output. See timestr for
the possible values of style.