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#1 2013-04-05 13:10:16
Repeat Until - pretest vs post test
say [Hi] repeat until <[1] = [2]> say [Bye] endleaves "Bye" on the screen. That means that the test happens after the action block executes, not before.
In order to reflect this, shouldn't the repeat until C block have the until < > test on the lower leg rather than the upper arm of the C ?
Code:
--- repeat --- | | say [Bye] | --- until < [1] = [2] >
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#2 2013-04-05 13:17:37
Re: Repeat Until - pretest vs post test
The test is happening — your repeat block is looping forever!
The repeat until block loops until the boolean is true. As 1=2 is false, the block keeps looping forever. Try this:
say [Hi] repeat until <[1] = [2]> move (3) steps endSee how the cat keeps moving?
You probably meant something like this:
say [Hi!] repeat until <[1] = [1]> say [Bye!] end...which leaves "Bye!" on the screen, as 1=1 is true, so the mouth of "repeat until 1=1" doesn't execute.
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#4 2013-04-05 14:00:48
Re: Repeat Until - pretest vs post test
No problem!
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