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Why use Ruby's attr_accessor, attr_reader and attr_writer?
Ruby has this handy and convenient way to share instance variables by using keys like
5 Answers
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ls command: how can I get a recursive full-path listing, one line per file?
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can ls parameters like --sort=extension "redeemed" by this solution?
– n611x007
Sep 28 '12 at 19:19
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Why declare unicode by string in python?
...is a string', it tells the Python compiler that the string is Unicode, not bytes. This is handled mostly transparently by the interpreter; the most obvious difference is that you can now embed unicode characters in the string (that is, u'\u2665' is now legal). You can use from __future__ import un...
Google Chrome redirecting localhost to https
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I believe this is caused by HSTS - see http://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security
If you have (developed) any other localhost sites which send a HSTS header...
eg. Strict-Transport-Security: max-age=31536000; includeSubDomains; pre...
Coding Practices which enable the compiler/optimizer to make a faster program
...e arguments. This can help you avoid the dreaded load-hit-store (mentioned by Francis Boivin in this thread).
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SQL Joins Vs SQL Subqueries (Performance)?
...or, since SQL normally evaluates it as a series of WHERE clauses separated by "OR" (WHERE x=Y OR x=Z OR...).
As with ALL THINGS SQL though, your mileage may vary. The speed will depend a lot on indexes (do you have indexes on both ID columns? That will help a lot...) among other things.
The onl...
Is optimisation level -O3 dangerous in g++?
...ncountered a bug that would not have been there if I would have used -O2.
By popular demand, here an addition:
-O3 and especially additional flags like -funroll-loops (not enabled by -O3) can sometimes lead to more machine code being generated. Under certain circumstances (e.g. on a cpu with excep...
Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?
...or may be used to access a variable stored within the structure identified by the pointer.
In C++, structures and classes not only aggregate variables, but can also attach code to them. Using . to invoke a method will on a variable ask that method to act upon the contents of the variable itself; u...
Where should @Service annotation be kept? Interface or Implementation?
...ose of an interface is that it define a contract that can been implemented by several implementations. On the other side you have your injection point (@Autowired). Having just one interface and only one class that implement it, is (IMHO) useless, and violates YAGNI.
fact: When you put:
@Componen...
Dynamic type languages versus static type languages
... Typing When Needed: The End of the Cold War Between Programming Languages by Erik Meijer and Peter Drayton at Microsoft:
Advocates of static typing argue that
the advantages of static typing
include earlier detection of
programming mistakes (e.g. preventing
adding an integer to a boolea...