"Extract" node update:
Changed default input/output to "numarray"
Changed "Mode" function

Added new functions :
"Swap": Replace biggest and smallest numbers
e.g. : [0,0,1,0] => [1,1,0,1] , [1,4,2,3,5] => [5,2,4,3,1]
"Duplicates": Outputs the duplicate numbers
"Make Unique": Removes the duplicate numbers (keeps one of them)
"Shuffle", "Reverse", "Sort Ascending", "Sort Descending", "Length"
"Volume", "Area", "Curve Length" (Object mode)

Address: "Basic/Extract"