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Create singleton using GCD's dispatch_once in Objective-C
...ingleton is not a certainty of its immortality, but certainty that we have one instance. What if that singleton decrement a semaphore? You can't just arbitrary say that it will always exists.
– jacekmigacz
Jan 25 '13 at 13:40
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How do I check if a given Python string is a substring of another one? [duplicate]
...ed Feb 28 '11 at 15:14
Martin StoneMartin Stone
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Why would I want stage before committing in Git?
...your working changes into smaller, self-contained pieces." Why would someone want to break their changes into smaller ones? If your going to add and commit a single bug fix before fixing the code you originally intended to change why wouldn't you just commit that bug fix rather than adding it and...
How to kill a process running on particular port in Linux?
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You might want to add that one might need root privilegues to get process names via netstat.
– Jonas Schäfer
Jul 20 '12 at 16:46
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Is it better practice to use String.format over string Concatenation in Java?
... automatically only if you are not in a loop. If the concatenation is all done on a single line it's the same as using '+', but if you use myString += "morechars"; or myString += anotherString; on multiple lines you'll notice that more than one StringBuilder might be created, so using "+" is not alw...
How To: Best way to draw table in console app (C#)
...g.Format("|{0,5}|{1,5}|{2,5}|{3,5}|", arg0, arg1, arg2, arg3);
To create one formatted row.
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Coding Katas for practicing the refactoring of legacy code
...ested in coding katas in recent months. I believe they are a great way to hone my programming skills and improve the quality of the code I write on the job.
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How do you remove a specific revision in the git history?
...its" should hopefully give you enough of an idea to figure it out. (Or someone else might know).
From the git documentation:
Start it with the oldest commit you want to retain as-is:
git rebase -i <after-this-commit>
An editor will be fired up with all the commits in your current branch (...
Is the SQL WHERE clause short-circuit evaluated?
... Expr2 else Expr3 end = desiredResult
Expr1is always evaluated, but only one of Expr2 and Expr3 will be evaluated per row.
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How do I kill all the processes in Mysql “show processlist”?
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You need to kill them one by one, MySQL does not have any massive kill command. You can script it in any language, for example in PHP you can use something like:
$result = mysql_query("SHOW FULL PROCESSLIST");
while ($row=mysql_fetch_array($resul...