Statement: exit
The exit statement simply stops execution of the script.
| Example Script |
|---|
| write "So far so good." nl; exit; write "We never get here!" nl; |
Output:-So far so good. |
Usage in Functions and Commands
If the exit statement is used in a function or command, then it ends the function or command and the script continues running from the calling point.
| Example Script |
|---|
| function must_be_positive(x) { if x <= 0 { result = @error("Value must be positive."); exit; }; result = x; }; write @must_be_positive(5) nl; write @must_be_positive(-3) nl; |
Output:-5
Value must be positive. |
Usage in Do Loops
If the exit statement is used in a do loop, then it ends the loop and the script continues running from the point after the loop.
| Example Script |
|---|
| do i in 1..10 { write i,; if i = 5 { exit; }; }; write "Done" nl; |
Output:-1, 2, 3, 4, 5, Done |
