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What does `:_*` (colon underscore star) do in Scala?

...tes: MetaData, scope: NamespaceBinding, child: Node*) which is called as new Elem(prefix, label, attributes, scope, child1, child2, ... childN) but here there is only a sequence, not child1, child2, etc. so this allows the result sequence to be used as the input to the constru...
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SPA best practices for authentication and session management

...-considered-harmful/ To summarize: A man-in-the-middle attack can trivially replace your crypto code with <script> function hash_algorithm(password){ lol_nope_send_it_to_me_instead(password); }</script> A man-in-the-middle attack is trivial against a page that serves any resource ove...
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Guid is all 0's (zeros)?

... Use the static method Guid.NewGuid() instead of calling the default constructor. var responseObject = proxy.CallService(new RequestObject { Data = "misc. data", Guid = Guid.NewGuid() }); s...
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Entity Framework - Code First - Can't Store List

... This is the only really correct answer IMHO. All the others require you to change your model, and that violates the principle that domain models should be persistence ignorant. (It is fine if you are using separate persistence and domain model...
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Run a Python script from another Python script, passing in arguments [duplicate]

... I believe it's generally preferable to use subprocess.Popen over os.system: docs.python.org/library/subprocess.html#replacing-os-system. – Katriel Sep 23 '10 at 20:15 ...
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What is a good regular expression to match a URL? [duplicate]

... I changed your expression a bit so it will work in all cases i need, including uri with http:// or www "/([^\s\.]+\.[^\s]{2,}|www\.[^\s]+\.[^\s]{2,})/gi" – Ismael Jan 14 '15 at 11:08 ...
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Python 2.7: Print to File

... In Python 3.0+, print is a function, which you'd call with print(...). In earlier version, print is a statement, which you'd make with print .... To print to a file in Python earlier than 3.0, you'd do: print >> f, 'what ever %d', i The >> operator directs pr...
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Update multiple rows in same query using PostgreSQL

... This is wrong... You will update all rows, even if it is not '123' nor '345'. You should use WHERE column_b IN ('123','456')... – MatheusOl Sep 14 '13 at 3:54 ...
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Deleting all records in a database table

How do I delete all records in one of my database tables in a Ruby on Rails app? 7 Answers ...
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Cocoa: What's the difference between the frame and the bounds?

UIView and its subclasses all have the properties frame and bounds . What's the difference? 12 Answers ...