Arrays

Arrays are variables with indexes. In Toy Basic, these indexes must be placed inside square brackets. You can use numeric or string values as indexes, and you can also use variables or expressions as indexes. Examples:

x[1] = 5
CarOwner["73TB37"] = "Jim Pendleton"
monthNum = 12
month[monthNum] = "December"
month[monthNum-1] = "November"
month[x[1]] = "May"

If you try to use an array element that has not been set, its value will be null. Example:

for i=1 to 10
	x[i] = "Line #" & i
next

i=1
while x[i] <> null
	DrawText (10, 10 + 20 * i, x[i])
wend

Arrays can be multidimensional. Example:

for i=1 to 10
	for j=1 to 10
		x[i][j] = "Column #" & i & ", Row #" & j
	next
next

If you assign a new value to an array element, the variable itself does not change:

x = 5
x[1] = 10 ' x[1] is 10, but x is still 5

if you assign a new value to a variable with array, all it's elements will be gone:

x[1] = 10
x = 5 ' Now x[1] is null