Function
Description
This function is used to return a number of the array's element count.
Argument
Return value
Returns a Number value.
Examples
integer a[] = [1,1,1,1,1]; UBound(a)
UBound([$1, $2, $3.0, $4.5, $45, $67]).
UBound([$1, $2, $3.0, $4.5, $45, $67])