Parameter
Ultimo aggiornamento il
11 gen 2022
Description
Iterates over every entry of the array and calls the closure to work on the elements of the array. This function will reduce the array to a single value from the right to the left and will return the value.
Returns
Any
Syntax
ArrayReduceRight(array, function(result, item, [,index, array])[, initialValue])
ArrayReduceRight(array, function(result, item, [,index, array])[, initialValue])
ArrayReduceRight(array, function(result, item, [,index, array])[, initialValue])
History
ColdFusion (2021 release): Added this function.
Parameters
|
|
Required/Optional |
Description |
|---|---|---|
|
array |
Required |
The input array. |
|
function |
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. |
Example 1
<cfscript>
data = ['1','2','3','4','5','6'];
stringConcat = ArrayReduceRight(data,function(previous,next) {
return previous & next;
},"");
writeOutput(stringConcat)
</cfscript>
<cfscript>
data = ['1','2','3','4','5','6'];
stringConcat = ArrayReduceRight(data,function(previous,next) {
return previous & next;
},"");
writeOutput(stringConcat)
</cfscript>
<cfscript>
data = ['1','2','3','4','5','6'];
stringConcat = ArrayReduceRight(data,function(previous,next) {
return previous & next;
},"");
writeOutput(stringConcat)
</cfscript>
Output
654321
Example 2
<cfscript>
data=[3,5,7,9,11]
result=ArrayReduceRight(data,function(previous,next){
return previous & next
},"")
writeDump(result)
</cfscript>
<cfscript>
data=[3,5,7,9,11]
result=ArrayReduceRight(data,function(previous,next){
return previous & next
},"")
writeDump(result)
</cfscript>
<cfscript>
data=[3,5,7,9,11]
result=ArrayReduceRight(data,function(previous,next){
return previous & next
},"")
writeDump(result)
</cfscript>
Output
119753
Example 3- member function
<cfscript>
data=[3,5,7,9,11]
result=data.ReduceRight(function(previous,next){
return previous & next
},"")
writeDump(result)
</cfscript>
<cfscript>
data=[3,5,7,9,11]
result=data.ReduceRight(function(previous,next){
return previous & next
},"")
writeDump(result)
</cfscript>
<cfscript>
data=[3,5,7,9,11]
result=data.ReduceRight(function(previous,next){
return previous & next
},"")
writeDump(result)
</cfscript>
Output
119753
