1 2 3 4 5 6 7 8 9 10 | * define a tuple for int, double, string... not for object d:=[] * assignment d[ 0 ] := 'a string' * get tuple length, method 1 : leng:=|d| * get tuple length, method 2 : tuple_length(d,leng) * get length of object tuple count_obj (ContoursSplit, Number) |