LBound(<array variable>)
LBound(<array variable>, <dimension>)


Returns the array lower bound of the given . If the is not specified, it defaults to 0. If the specified is 0, then total number of dimensions is returned.


DIM a(3 TO 5, 1 TO 8)
PRINT LBound(a, 2) : REM Prints 1
PRINT Lbound(a) : REM Prints 2, the number of dimensions

The result is always a 16bit integer value.

If <dimension> is 0 the number of dimensions in the array is returned (use it to guess the number of dimensions of an array):

DIM a(3 TO 5, 2 TO 8)
PRINT LBound(a, 0): REM Prints 2, since 'a' has 2 dimensions


  • This function does not exists in Sinclair BASIC.

See also