Simple FreeMarker random number generator

Posted on by

FreeMarker doesn’t have a random number generator function. I needed a really simple solution that would allow me to pick a random image URL to be displayed on the homepage.

<#--
* Generates a "random" integer between min and max (inclusive)
*
* Note the values this function returns are based on the current
* second the function is called and thus are highly deterministic
* and SHOULD NOT be used for anything other than inconsequential
* purposes, such as picking a random image to display.
-->
<#function rand min max>
  <#local now = .now?long?c />
  <#local randomNum = _rand +
    ("0." + now?substring(now?length-1) + now?substring(now?length-2))?number />
  <#if (randomNum > 1)>
    <#assign _rand = randomNum % 1 />
  <#else>
    <#assign _rand = randomNum />
  </#if>
  <#return (min + ((max - min) * _rand))?round />
</#function>
<#assign _rand = 0.36 />

I’ve added this function to the FreeMarker Spring extensions I’ve been building up. You might use it in your code like so:

<img src="<@spring.url "/images/" + springx.rand(1, 10) + ".jpg" />" />

Note that there are obvious issues with this function. Aside from being based heavily on the second the function is called, you’ll notice that the min and max have less probability of being generated as the other values…what? I said it was simple.

1,480 thoughts on “Simple FreeMarker random number generator”

  5. услуги devops стоимость ochered-u-ekrana.site разработка web приложений заказать приложение

  8. Womans naked buttsTiny teen home fuckDrum sex cdMonster cock cumsLyrics quit fucking my high offHelping people who lust after pleasureAlysha strzelec nudePortage
    teen outbound campsVintage clothing in spokane washington50 pounds indian escort xnxx Nbeautiful nudeHentai viper gts files
    tubeTeachers gone nakedHottest cartoon milfsTrainy shemalePictures chinese
    pussyNew miley cyrus tits pictures https://xnxxopen.com Gay seattle waAnime hentai pics/wallpapersListings of
    sexual transmitted diseasesSex pictures+freeNaked girls st joseph moPorn tube – videosPamela anderson’s porn videos xnxx The
    black power fistBest sexual position to conceiveChubby girls
    moviesJr girls sexy picturesRachel luttrell free fake nudesEcho valley
    breastsMale male paddling spank videoSex cum movie for freeNaked oriental
    young girlsSexual photography linksMagazie art vintageGay men having butt sex

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>