Rosetta Code:Village Pump/Suggest a programming task: Difference between revisions
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(→Unsorted: delete-if-not filter! Array#select!) |
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:This is an Anti-pattern. Why code it? --[[User:Paddy3118|Paddy3118]] 19:57, 5 April 2011 (UTC) |
:This is an Anti-pattern. Why code it? --[[User:Paddy3118|Paddy3118]] 19:57, 5 April 2011 (UTC) |
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:: Perhaps the original commenter overspecified. Make it less specific? Call it [[Set filter]]. --[[User:Short Circuit|Michael Mol]] 20:16, 5 April 2011 (UTC) |
:: Perhaps the original commenter overspecified. Make it less specific? Call it [[Set filter]]. --[[User:Short Circuit|Michael Mol]] 20:16, 5 April 2011 (UTC) |
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::: Some languages provide this operation, exactly as the original commenter specified. Common Lisp has ''delete-if-not'', Factor has ''filter!'', and Ruby has ''Array#select!''. Java hackers might implement this with [http://download.java.net/jdk7/docs/api/java/util/Iterator.html#remove() java.util.Iterator.remove()] from [http://download.java.net/jdk7/docs/api/ Java API]. I added this task as an option to [[Filter]], along with code for Factor and Ruby. (The page already had Common Lisp.) --[[User:Kernigh|Kernigh]] 01:55, 6 April 2011 (UTC) |
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==Insufficient information== |
==Insufficient information== |
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