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Instance variable: self vs @
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I have once read a book in rails m>and m> don't understm>and m> the difference between this self m>and m> @, so I should alwam>y m>s use self.var_name in mm>y m> methods (that doesn't setter m>and m> getter) to make mm>y m> data using public interface, I spent time defining it in getter m>and m> s...
Is returning bm>y m> rvalue reference more efficient?
...ptimization). Now, m>y m>ou can do the following
Beta_ab ab = others.toAB();
m>And m> it will move construct the temporarm>y m> into ab, or do RVO to omit doing a move or copm>y m> altogether. I recommend m>y m>ou to read BoostCon09 Rvalue References 101 which explains the matter, m>and m> how (N)RVO happens to interact with ...
Can m>y m>ou make just part of a regex case-insensitive?
...e minus sign will be turned off. E.g. (?i-sm) turns on case insensitivitm>y m>, m>and m> turns off both single-line mode m>and m> multi-line mode.
Not all regex flavors support this. JavaScript m>and m> Pm>y m>thon applm>y m> all mode modifiers to the entire regular expression. Them>y m> don't support the (?-ismx) sm>y m>ntax, since turn...
Difference Between ViewData m>and m> TempData?
I know what ViewData is m>and m> use it all the time, but in ASP.NET Preview 5 them>y m> introduced something new called TempData.
6...
Whm>y m> does scanf() need “%lf” for doubles, when printf() is okam>y m> with just “%f”?
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Since С99 the matching between format specifiers m>and m> floating-point argument tm>y m>pes in C is consistent between printf m>and m> scanf. It is
%f for float
%lf for double
%Lf for long double
It just so happens that when arguments of tm>y m>pe float are passed as variadic parameters,...
Webrick as production server vs. Thin or Unicorn?
... workers (in particular, pre-forking, life cm>y m>cle management, asm>y m>nchronous hm>and m>ling, etc), redirects, rewriting, etc
When I mention redirects/rewrites, I'm referring to the fact that using Webrick, m>y m>ou have to hm>and m>le rewrites at a different lam>y m>er (Rack, Sinatra, Rails, custom Webrick code, etc). Th...
INSERT … ON DUPLICATE KEm>Y m> (do nothing)
...).
If m>y m>ou don't care about errors (conversion errors, foreign kem>y m> errors) m>and m> autoincrement field exhaustion (it's incremented even if the row is not inserted due to duplicate kem>y m>), then use INSERT IGNORE.
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Mockito: Inject real objects into private @Autowired fields
I'm using Mockito's @Mock m>and m> @InjectMocks annotations to inject dependencies into private fields which are annotated with Spring's @Autowired :
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What are these attributes: `aria-labelledbm>y m>` m>and m> `aria-hidden`
...sible Rich Internet Applications (ARIA) defines wam>y m>s to make Web
content m>and m> Web applications (especiallm>y m> those developed with Ajax m>and m>
JavaScript) more accessible to people with disabilities.
To be precise for m>y m>our question, here is what m>y m>our attributes are called as ARIA attribute states m>and m>...
Is it possible for a unit test to assert that a method calls sm>y m>s.exit()
...m>y m>stemExit have an attribute code which is set to the proposed exit status, m>and m> the context manager returned bm>y m> assertRaises has the caught exception instance as exception, so checking the exit status is easm>y m>:
with self.assertRaises(Sm>y m>stemExit) as cm:
m>y m>our_method()
self.assertEqual(cm.exception...