This may just be me misunderstanding the way it&#39;s supposed to work, but I was exploring the method�<div><br><div>combinations: kk atATimeDo: aBlock�defined in SequenceableCollection</div><div><div><br></div><div><div>&#39;abcde&#39; combinations: 2 atATimeDo: [:each | Transcript cr; show: each printString].�</div>
<div>produces the expected result:</div><div>#($a $b)</div><div>#($a $c)</div><div>#($a $d)</div><div>#($a $e)</div><div>#($b $c)</div><div>#($b $d)</div><div>#($b $e)</div><div>#($c $d)</div><div>#($c $e)</div><div>#($d $e)</div>
<div><br></div><div>but, if you add :each to a collection instead of printing, you get something different. The following code:</div><div>res := OrderedCollection new.�</div><div>�&#39;abcde&#39; combinations: 2 atATimeDo: [:each | res add: each].�</div>
<div>Transcript show: res.</div><div>produces:</div><div>an OrderedCollection(#($e $e) #($e $e) #($e $e) #($e $e) #($e $e) #($e $e) #($e $e) #($e $e) #($e $e) #($e $e))</div></div></div></div><div><br></div><div>Thanks again.</div>