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.
Nice
Not getting enough leads for Freestyle Developments? Check out this video to see our AI traffic solution in action: https://www.youtube.com/watch?v=0vQRdhaE2j8
Facing grow your website traffic? Our AI technology attracts custom visitors using keywords and place-based precision from countries to local spots.
Desiring increased revenue, engaged users, or a broader online reach?
We shape it to align with your vision. Enjoy a 7-day free trial period with no contract. Join here:
https://ow.ly/OBZU50WrgTU
Needing to enhance your website traffic reach? Our AI technology pulls tailored website traffic through keywords and location targeting from countries to local areas.
Desiring higher profits, active pages, or greater digital reach?
We tailor it to your goals. Enjoy a 7-day free trial period with no contract. Begin here:
https://ow.ly/xwB250Wrj3z
Struggling with low website leads for Freestyle Developments? This short video shows how our AI can boost your traffic: https://www.youtube.com/watch?v=0vQRdhaE2j8
Grow your site’s audience with our AI-driven traffic service, significantly cheaper than paid ad platforms. Contact us to explore the benefits.
https://ow.ly/oEc450WtZiF
Eager to boost your website’s growth? Our AI-powered tool brings precise visitors through keywords with regional filters from continents to local areas.
Seeking increased profits, engaged visitors, or an expanded digital presence?
We customize it to fit your strategy. Enjoy a 7-day free trial period with no contract. Start here:
https://ow.ly/8JJh50Wvgxf
Attract high-intent, keyword and location-targeted traffic to your site with our AI-optimized solution, far more affordable than traditional paid ads. Start scaling now.
https://ow.ly/u1Pk50Wvgw1
Why overspend on paid ads? Our AI-powered service drives targeted website traffic at a significantly lower cost, boosting your ROI.
https://ow.ly/9cOV50WvgBH
Boost your Freestyle Developments website’s traffic with AI! Watch this to learn more: https://www.youtube.com/shorts/A8YPkXQq4EY
Save big with our AI-optimized service, driving location-specific visitors to your website for less than paid ad campaigns. Start now to see the impact.
https://ow.ly/Jngn50Wzt68
Eager to ignite your website presence? Our smart AI platform brings targeted website traffic via keywords or place-based filters from countries to neighborhoods.
Aiming at higher profits, livelier website traffic, or expanded online impact?
We adjust it to fit your goals. Enjoy a 7-day free trial period with no contract. Dive in here:
https://ow.ly/UMP750WvErR
Needing to grow your website audience? Our smart platform attracts targeted visitors via keywords with location data from countries to neighborhoods.
Wanting higher sales, vibrant engagement, or a stronger digital footprint?
We fine-tune it to suit your plan. Enjoy a 7-day free trial period with no contract. Join here:
https://ow.ly/VzZ550WAbbs
Want more targeted traffic to your Freestyle Developments Co Uk website? See how our AI-powered solution can help in this quick video: https://www.youtube.com/shorts/A8YPkXQq4EY
Our AI-powered service delivers high-intent visitors to your website, saving you money compared to traditional paid ads. Ready to enhance your online presence?
https://ow.ly/ERoz50WGHxI
Aiming to supercharge your website’s reach? Our intelligent AI tool channels ideal visitors via keywords or geographic filters from continents to towns.
Hoping for higher revenue, vibrant engagement, or an expanded digital presence?
We customize it to match your strategy. Enjoy a 7-day free trial period with no contract. Start now:
https://ow.ly/8JYy50WGHAz
Use AI to build a website by just entering a few lines of text for free. Our AI powered system will then build an entire website in just a few minutes. Try it free here: https://ow.ly/kNlP50VqFCI