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Looping through A to Z in ColdFusion

By on July 27, 2012

There are always more than single methods to accomplish the same job in programming language. To loop through the letters from A to Z in ColdFusion there are also more than one way, but I personally found out the following 2 methods are simpler and strain forward.

 

Hardcode the A to Z into a list and just loop over it

<cfloop

index=”strLetter”

list=”A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z”

delimiters=”,”>

 

<cfdump var=”#strLetter#”>

 

</cfloop>

 

 

The other way to loop through the letters is using the ASCII value from A to Z. We first convert the A and Z to ASCII, than just use the number to loop through the rest and convert it back to char to get back our result.

 

<cfloop

index=”intLetter”

from=”#Asc( ‘A’ )#”

to=”#Asc( ‘Z’ )#”

step=”1″>

 

<!— Get character of the given ascii value. —>

<cfset strLetter = Chr( intLetter ) />

 

<cfdump var=”#strLetter#”>

 

</cfloop>

 

Please feel free to share the way you usually use or you may found out any other better way to do the job.

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