Parameter
Last updated on
Jan 13, 2022
Description
Iterates over each item of the list and calls the closure to work on the item. This function will reduce the list to a single value from right to left and will return the value.
Returns
Any
Syntax
ListReduceRight(list, callback, initialValue, [delimiter, includeEmptyFields])
History
ColdFusion (2021 release): Added this function.
Parameters
|
|
Required/Optional |
Description |
|---|---|---|
|
array |
Required |
The input array. |
|
callback |
Required |
Closure or a function reference that will be called for each of the iteration. The arguments passed to the callback are
|
|
initialValue |
Optional |
Initial value which will be used for the reduce operation. The type is any. |
|
delimiter |
Optional |
The list delimiter. The type is string. |
|
includeEmptyFields |
Optional |
(Boolean) Include empty values. |
Example
<cfscript>
myList="2021, ColdFusion ";
closure=function(value1,value2){
return (value1&value2);
}
writeOutput(ListReduce(myList,closure,""));
writeoutput("<br>")
writeOutput(ListReduceRight(myList,closure,""));
</cfscript>
Output
2021 ColdFusion
ColdFusion 2021
Example- Member function
<cfscript>
myList="2021, ColdFusion ";
closure=function(value1,value2){
return (value1&value2);
}
writeOutput(myList.ReduceRight(closure,""));
</cfscript>
Output
noisuFdloC ,1202