This is good opportunity to update the comment, because contains: states
to evaluate the block with all elements, but it simply doesn't.
Thanks,
Steffen Märcker
anySatisfy: aBlock
"Answer true if aBlock answers true for any element of the receiver.
An empty collection answers false."
contains: aBlock
"Evaluate aBlock with each of the receiver's elements as the argument.
Answer true if aBlock ever evaluates to true, otherwise answer false."
self detect: aBlock ifNone: [^false].
^true
On Tue, 27 May 2008 21:04:20 +0200, Roger Whitney <
[hidden email]>
wrote:
> They also convey different intent to the reader. At times I will
> create a new method that calls another method to better communicate to
> the reader what I am doing.
>
> Roger whitney
> Via iPhone
>
> On May 27, 2008, at 10:25 AM, "Adriaan van Os" <
[hidden email]> wrote:
>
>> #anySatisfy: is part of the ANSI Smalltalk specifications.
>> #contains: is what already existed in many Smalltalk dialects.
>>
>> hth,
>> Adriaan.
>>
>>> I wonder whether there is a difference in behaviour between the
>>> methods
>>>
>>> Collection >> anySatisfy: aBlock and
>>> Collection >> contains: aBlock
>>>
>>> As far as I see they break the iteration and return true if the block
>> evaluates to true and false if it never does (including the case of an
>> empty collection). Am I mistaken?
>>>
>>> Steffen
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>>
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