Utility method reduceCollection($1) accepts a collection as a parameter and returns a reduced collection.

// reduceCollection($1)

#DECLARE($coll : Collection)->$result : Collection If (Count parameters=1)   $result:=$coll.reduce(Formula(Flatten)) End If

// Flatten method

#DECLARE($formula_o : Object) If ($formula_o.accumulator=Null)   $formula_o.accumulator:=New collection End if $formula_o.accumulator.combine($formula_o.value)

// Example

var $coll1; $coll2; $coll3; $newColl1; $newColl2; $newColl3: Collection $coll1:=New collection $coll1.push(New collection(0;1)) $coll1.push(New collection(2;3)) $coll1.push(New collection(4;5)) $coll2:=New collection $coll2.push(New collection("text1"; "text2")) $coll2.push(New collection("text3"; "text4")) $coll3:=New collection $coll3.push(New collection("name1"; New collection("name2"; "text"))) $coll3.push(New collection("name3"; New collection("name4"; "text"))) // [0,1,2,3,4,5] $newColl1:=reduceCollection($coll1) // ["text1", "text2", "text3", "text4"] $newColl2:=reduceCollection($coll2) // ["name1",["name2","text"],"name3",["name4","text"]] $newColl3:=reduceCollection($coll3)

Notice with $newColl1 and $newColl2 the Collections being passed to the utility method contain several collection elements and those collection elements are returned in a single Collection.

The Collection $coll3 is reduced and the result is stored in $newColl3