I am trying to modernize some code, and could use some help. How can I change this code to cfscript? The code below is processing a form, which is not shown, because it's just a basic form. Thanks in advanced for any help!

<cfif #form.conversionType# is "CtoF">   <cfinvoke component="convertTemp" method="ctof" returnvariable="newtemp" temp=#form.temperature#>
        <cfoutput>#form.temperature# degrees Celsius is #newtemp# degrees Farenheit.</cfoutput>
    <cfelseif #form.conversionType# is "FtoC">
        <cfinvoke component="convertTemp" method="ftoc" returnvariable="newtemp" temp=#form.temperature#>
    <cfoutput>#form.temperature# degrees Fahrenheit is #newtemp# degrees Celsius.</cfoutput>
</cfif>

Which part is giving you problems? What have you tried? How did it not work?

It would indeed be helpful to know what you already tried and what is not working. In general, I would recommend putting most of the logic into the CFC . Then you can just make sure the form values exist and call a CFC method. So the code in the CFM could be something like this:

// if conversionType exists, the form was sent. Make sure temperature is a numeric value
    if( structKeyExists( form, 'conversionType') && isNumeric( form.temperature ) ) {
        conversionResult = new convertTemp.convert( direction=form.conversionType, temperature=form.temperature )

        writeOutput( '#form.temperature# degrees #conversionResult.from# is #conversionResult.newTemp# #<http://conversionResult.to#|conversionResult.to#>.' );
    }

In the example above, the CFC method would return a struct with the output values. In case you don't need the values later in the request, you could just as well have it return a complete output string.

If modernizing it; convert it to jquery or something all handled on the UI side. https://www.codementor.io/blog/temperature-converter-cpcfuc9e14

@johnbarrett this is a good resource as well. https://modern-cfml.ortusbooks.com/

I checked John's code on cfscript.me, and it probably made it worse if anything.

As a simple mockup I faked the CFC into just an object with functions, but it would work the same way. https://trycf.com/gist/62f83a419668a6acecb327bf9874b79f/acf2016?theme=monokai