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Checking for empty arrays: count vs empty
...eople might say empty is faster (e.g. http://jamessocol.com/projects/count_vs_empty.php) while others might say count is better since it was originally made for arrays. empty is more general and can be applied to other types.
php.net gives the following warning for count though :
count() may re...
jQuery map vs. each
...nd each both have a selector-version, and a util-version. $.map and $.each vs $("").map and $("").each.
– Magnar
Apr 14 '09 at 20:10
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Clojure: reduce vs. apply
I understand the conceptual difference between reduce and apply :
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Float vs Decimal in ActiveRecord
...ost-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f8514167%2ffloat-vs-decimal-in-activerecord%23new-answer', 'question_page');
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MySQL: @variable vs. variable. What's the difference?
... Another question for a newcomer. When is it recommended to use @ vs not?
– pixelfreak
Nov 27 '12 at 0:46
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WebRTC vs Websockets: If WebRTC can do Video, Audio, and Data, why do I need Websockets? [closed]
So I'm looking to build a chat app that will allow video, audio, and text. I spent some time researching into Websockets and WebRTC to decide which to use. Since there are plenty of video and audio apps with WebRTC, this sounds like a reasonable choice, but are there other things I should consider? ...
When to use static vs instantiated classes
...ing language. I can't quite wrap my head around when to use static classes vs instantiated objects.
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JRuby on Rails vs. Ruby on Rails, what's difference?
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vs. . Which to use?
When looking at most sites (including SO), most of them use:
15 Answers
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Java: Static vs inner class [duplicate]
What is the difference between static and non-static nested class?
8 Answers
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