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How do I check (at runtime) if one class is a subclass of another?
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If there's one thing that's a constant on Stack Overflow, it is that any questions with an answer that implies isinstance or issubclass will also be accompanied with lectures about duck typing!
– B Robst...
Why do we need entity objects? [closed]
...ted the "logic" of the application is, and where you have implemented it. If all your logic is in stored procedures, and all your application does is call those procedures and display the results, then developing entity objects is indeed a waste of time. But for an application where the objects ha...
I need an unordered list without any bullets
...ype: none;
}
You might also want to add padding: 0 and margin: 0 to that if you want to remove indentation as well.
See Listutorial for a great walkthrough of list formatting techniques.
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How do I lock the orientation to portrait mode in a iPhone Web Application?
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You can specify CSS styles based on viewport orientation:
Target the browser with body[orient="landscape"] or body[orient="portrait"]
http://www.evotech.net/blog/2007/07/web-development-for-the-iphone/
However...
Apple's approach to t...
What is a stream?
...skip bytes from the stream (this is like read, but you ignore the data. Or if you prefer it's like seek but can only go forwards.)
push back bytes into an input stream (this is like "undo" for read - you shove a few bytes back up the stream, so that next time you read that's what you'll see. It's oc...
difference between iframe, embed and object elements
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<iframe>
The iframe element represents a nested browsing context. HTML 5 standard - "The <iframe> element"
Primarily used to include resources from other domains or subdomains but can be used to include content from...
How can I see the size of files and directories in linux? [closed]
How can I see the size of files and directories in Linux? If use df -m , then it shows the size of all the directory at the top level, but, for the directories and files inside the directory, how do I check the size?
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Difference between java.exe and javaw.exe
...hat some applications are running on javaw (not in java ). What is the difference between them and how can I run my Swing application on javaw ?
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Can we set a Git default to fetch all tags during a remote pull?
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The --force option is useful for refreshing the local tags. Mainly if you have floating tags:
git fetch --tags --force
The git pull option has also the --force options, and the description is the same:
When git fetch is used with <rbranch>:<lbranch> refspec, it refuses to
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What kind of virtual machine is BEAM (the Erlang VM)?
...ng VM and have no connection to either OS processes or OS threads. So even if you are running an Erlang system of over one million processes it is still only one OS process and one thread per core. So in this sense the Erlang VM is a "process virtual machine" while the Erlang system itself very much...