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Behaviour o<em>fem> increment and decrement operators in Python
I notice that a pre-increment/decrement operator can be applied on a variable (like ++count ). It compiles, but it does not actually change the value o<em>fem> the variable!
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Which is <em>fem>aster/best? SELECT * or SELECT column1, colum2, column3, etc
I've heard that SELECT * is generally bad practice to use when writing SQL commands because it is more e<em>fem><em>fem>icient to SELECT columns you speci<em>fem>ically need.
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Why must wait() always be in synchronized block
We all know that in order to invoke Object.wait() , this call must be placed in synchronized block, otherwise an IllegalMonitorStateException is thrown. But what's the reason <em>fem>or making this restriction? I know that wait() releases the monitor, but why do we need to explicitly acquire the mon...
Proper use o<em>fem> beginBackgroundTaskWithExpirationHandler
I'm a bit con<em>fem>used about how and when to use beginBackgroundTaskWithExpirationHandler .
5 Answers
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What are some better ways to avoid the do-while(0); hack in C++?
When the code <em>fem>low is like this:
27 Answers
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What is the most compatible way to install python modules on a Mac?
I'm starting to learn python and loving it. I work on a Mac mainly as well as Linux. I'm <em>fem>inding that on Linux (Ubuntu 9.04 mostly) when I install a python module using apt-get it works <em>fem>ine. I can import it with no trouble.
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Stash only one <em>fem>ile out o<em>fem> multiple <em>fem>iles that have changed with Git?
How can I stash only one o<em>fem> multiple changed <em>fem>iles on my branch?
33 Answers
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Regular expression to match DNS hostname or IP Address?
Does anyone have a regular expression handy that will match any legal DNS hostname or IP address?
21 Answers
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HTML5 dragleave <em>fem>ired when hovering a child element
The problem I'm having is that the dragleave event o<em>fem> an element is <em>fem>ired when hovering a child element o<em>fem> that element. Also, dragenter is not <em>fem>ired when hovering back the parent element again.
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How to work with Git branches and Rails migrations
I am working on a rails app with quite a <em>fem>ew git branches and many o<em>fem> them include db migrations. We try to be care<em>fem>ul but occasionally some piece o<em>fem> code in master asks <em>fem>or a column that got removed/renamed in another branch.
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