Jeff,
Take advantage of CF sitting on top of Java. Convert the lists to arrays using
listToArray. Then use the containsAll() method of java list to see if all the
elements of one array are present in another array. Using your example,
<cfset list1 = listToArray("700,300,400,1100,2200") />
<cfset list2 = listToArray("300,400") />
<cfset foo = list1.containsAll(list2) />
<!--- reset dump variable in request scope --->
<cfset request.cfdumpinited = false />
<cfdump expand="true" label="foo" var="#foo#" />
<cfabort />
hth,
larry
> Hi folks,
>
> I'm not 100% sure on all the "list" functions in CF.. so I'm hoping
> this group can give me a little guidance.
>
> Ideally, I'm looking for a UDF that takes in two LISTS and returns a
> BOOLEAN. True if ANY element in list 2 is in list 1. False if NO
> element in list 2 is in list 1.
>
> I tried to search cflib.org and also looked at the avail functions for
> lists. It needs to be optimized, so ideally breaking out of the UDF
> once the first match is found.
>
> EXAMPLES:
> list1 = 5,8,2,20
> list2 = 4,6
> result = FALSE
>
> list1 = 700,300,400,1100,2200
> list2 = 300,400
> result = TRUE, but breaking out of comparisions after first find
> (300)
>
> list1 = 1
> list2 = 3,4,6,1,2,11,100,101,102,103,104
> result = TRUE, but breaking out of comparisions after element 4 = (1)
>
>
> appreciate any guidance!
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