Control Functions.while

Executes a loop with a pre-condition.

Arguments

is a callable to evaluate the loop pre-condition. The condition will be checked before each iteration. The loop will continue if and only if the condition evaluates to TRUE. It has the following stack notation:

( -- condition )

is the callable to execute.

Return values

None

Example

"sl/control" useFile

i: 0;

[i 5 < ] [

i print

i 1 + !i

] while

Try it
Output: