Below is a useful method for comparing two collections. The method will return a boolean, stating whether the first collection contains the same data as the second collection.

// ---------------------------------------------------- // Method: compareCollection // Description: Compares the contents of 2 collections and returns True if they contain the same data; returns False otherwise. // Parameters: $1 & $2 - Collections to compare // NOTE: Order matters (i.e. ["1";"2"] is not equal to ["2";"1"]) // ---------------------------------------------------- C_BOOLEAN($0) C_COLLECTION($1;$2) If (Count parameters>=2)       C_TEXT($container_t)    C_OBJECT($container_o)       $container_o:=New object("content";$1)    $container_t:=JSON Stringify($container_o)    $digest1_t:=Generate digest($container_t;4D digest)       $container_o:=New object("content";$2)    $container_t:=JSON Stringify($container_o)    $digest2_t:=Generate digest($container_t;4D digest)       $0:=($digest1_t=$digest2_t)    End if

For example, say that we have the 2 collections below:

$a:=New collection("hello";"world";1;2;3) $b:=New collection("hello";"world";1;2;3)

Passing the collections into compareCollection will return True. Note that order matters, so if the collections were the following instead, the method would return False:

$a:=New collection("world";"hello";1;2;3) $b:=New collection("hello";"world";1;2;3)