Executes a block a given number of times.
hello! hello! hello! >>
repeat is the same as loop, but it has an index that gets incremented each loop
1 2 3 >>
Executes a block as it moves forward in a series.
china japan korea usa japan korea usa korea usa usa >>
Executes a block for each element of the series.
china japan korea usa >>
Executes a block while a condition is true.
1 2 3 4 >>
Evaluates a block until the block returns a
5 4 3 2 1 0 >>
Forces an exit from the loop.
Forces the exit and sends a given value, like a code or a message, as a return value.
Creates a loop that never ends.