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Why em instead of px?
...s not adhering to an exact size. It would be typical for a site to have a mix of fixed-size and flexible-sized objects.
Fixed size elements often need to be incorporated into the page - such as advertising banners, logos or icons. This ensures you almost always need at least some px-based measure...
CROSS JOIN vs INNER JOIN in SQL
... the argument to a RIGHT, LEFT or FULL (OUTER) JOIN.
Re "Don't use comma" Mixing comma with explicit JOIN can mislead because comma has lower precedence. But given the role of the intermediate product in the meaning of CROSS JOIN, (INNER) JOIN and comma, arguments for the convention above of not us...
What is the difference between Google App Engine and Google Compute Engine?
...pp and virtual machines yourself.
Read more about Compute Engine
You can mix both App Engine and Compute Engine, if necessary. They both work well with the other parts of the Google Cloud Platform.
EDIT (May 2016):
One more important distinction: projects running on App Engine can scale down to ...
How do I iterate over an NSArray?
I'm looking for the standard idiom to iterate over an NSArray. My code needs to be suitable for OS X 10.4+.
8 Answers
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Difference between objectForKey and valueForKey?
...etween objectForKey and valueForKey ?
I looked both up in the documentation and they seemed the same to me.
5 Answers
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What is the difference between JSON and Object Literal Notation?
... @overexchange: "keys in object literal are always strings" You are mixing two things here, but I can't blame you because I also didn't draw a clear line here. You have to distinguish between an object literal and an object value. A literal is the character sequence you write in the source co...
Does use of final keyword in Java improve the performance?
...r the method has actually been overridden, and is able to perform optimizations such as inlining on the assumption that a method hasn't been overridden - until it loads a class which overrides the method, at which point it can undo (or partially undo) those optimizations.
(Of course, this is assumi...
Correct file permissions for WordPress [closed]
...had a look over here but didn't find any details on the best file permissions. I also took a look at some of WordPress's form's questions over here too but anybody that suggests 777 obviously needs a little lesson in security.
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What are fixtures in programming?
...m many times (in the context of programming) but couldn't find any explanation of what it meant. Any good articles or explanations?
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REST, HTTP DELETE and parameters
...can see this from a pure-service point of view, while others see it from a mixed application/service point of view. That is I believe where the real question about how to do the confirmation comes into play. @Chris: updated - thank you sir for a very interesting topic and discussion!
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