dim a(10)		// create a numeric array with 11 elements, from 0 to 10
				// Indexed at your preference (0 to 9 or 1 to 10)
print arraysize(a(), 1)	// this function return the element's higher number of an array

a(7) = 12.3		// access to an element of the array				
redim a(20)		// alias of 'dim'. Grouth size of array

// Yabasic not allow direct downsize an array, but ...

dim a$(20)		// create a textual array with 21 elements

print arraysize(a$(), 1)

void = token("1,2,3,4,5,6,7,8,9,10", a$(), ",")	// populate it. Begun with element 1 (not 0).

print arraysize(a$(), 1)	// hey! the size is down

print a$(5)		// show the content of an element of the array

void = token("", a$())	// "erase" the array content AND redim it to 0 size

print arraysize(a$(), 1)

redim a$(10)	// resize the array

print arraysize(a$(), 1)

print a$(5)		// show the content of an element of the array. Now is empty