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How do ACID and database transactions work?
...micity means that you can guarantee that all of a transaction happens, or none of it does; you can do complex operations as one single unit, all or nothing, and a crash, power failure, error, or anything else won't allow you to be in a state in which only some of the related changes have happened.
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When is the init() function run?
... answered Jul 16 '14 at 20:46
OneOfOneOneOfOne
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How to retrieve the hash for the current commit in Git?
...-parse --short HEAD returns the short version of the hash, just in case anyone was wondering.
– Thane Brimhall
Oct 25 '12 at 21:28
56
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Windows batch: sleep [duplicate]
...n XXX 127.0.0.1 >nul
where XXX is the number of seconds to wait, plus one.
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What is a regular expression for a MAC Address?
...he obsolescent bit-reversed notation (¶ 4). Importantly, in practice, no one observes this. We simply use one or the other, but never mix them in a single written MAC.
– pilcrow
Jul 14 '15 at 17:06
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What is the __del__ method, How to call it?
...d even then only periodically.
Since you have no guarantee it's executed, one should never put the code that you need to be run into __del__() — instead, this code belongs to finally clause of the try block or to a context manager in a with statement. However, there are valid use cases for __del_...
How to see an HTML page on Github as a normal rendered HTML page to see preview in browser, without
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Note that this only works for public repos. Private ones will give the error message Error: Cannot load file
– Erik Trautman
Aug 19 '14 at 22:51
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Recommended Vim plugins for JavaScript coding? [closed]
...d ctags. You can find out by executing ctags --version.
node (Node.js)
Clone DoctorJS from github: git clone https://github.com/mozilla/doctorjs.git
Go inside DoctorJS dir and make install (You'll also need the make app installed, but this is very basic).
There're some bugs with installing the p...
How do I use vim registers?
I only know of one instance using registers is via Ctrl R * whereby I paste text from a clipboard.
16 Answers
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Creating a comma separated list from IList or IEnumerable
... exactly what the performance is like, including (but not limited to) this one.
As of .NET 4.0, there are more overloads available in string.Join, so you can actually just write:
string joined = string.Join(",", strings);
Much simpler :)
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