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Difference between == and ===
... You can also override isEqual: in Swift: override func isEqual(_ object: Any?) -> Bool {}
– Thomas Elliot
Sep 16 '17 at 1:33
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DataContractSerializer doesn't call my constructor?
... when a DataContractSerializer creates it.
Interlocked.CompareExchange(ref _sync, new object(), null);
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How do I change selected value of select2 dropdown with JqGrid?
... be called redundantly upon triggered change().
– van_folmert
Feb 22 '16 at 10:37
If this doesn't work correctly add a...
Properties file in python (similar to Java Properties)
...just set your properties in a python file, and use valid python (e.g: MEDIA_ROOT='/foo') ...
– danbgray
May 11 '12 at 21:19
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Removing the fragment identifier from AngularJS urls (# symbol)
...nditions logicalGrouping="MatchAll">
<add input="{REQUEST_FILENAME}" matchType="IsFile" negate="true" />
<add input="{REQUEST_FILENAME}" matchType="IsDirectory" negate="true" />
<add input="{REQUEST_URI}" pattern="^/(api)" negate="true" />
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HTML5 Canvas 100% Width Height of Viewport?
...es the text. You unfortunately have to use JS.
– i336_
May 10 '16 at 1:56
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PostgreSQL naming conventions
...valent convention is:
SQL keywords: UPPER CASE
names (identifiers): lower_case_with_underscores
For example:
UPDATE my_table SET name = 5;
This is not written in stone, but the bit about identifiers in lower case is highly recommended, IMO. Postgresql treats identifiers case insensitively whe...
Remove non-utf8 characters from string
... times
)
| . # anything else
/x
END;
preg_replace($regex, '$1', $text);
It searches for UTF-8 sequences, and captures those into group 1. It also matches single bytes that could not be identified as part of a UTF-8 sequence, but does not capture those. Replacement...
String comparison in Python: is vs. == [duplicate]
...ython allows anything to be used as a boolean expression. If you have bool_a == 3 and bool_b == 4, then bool_a != bool_b, but bool_a xor bool_b is false (because both terms are true).
– dan04
Jun 7 '10 at 12:57
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C/C++ NaN constant (literal)?
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In C, NAN is declared in <math.h>.
In C++, std::numeric_limits<double>::quiet_NaN() is declared in <limits>.
But for checking whether a value is NaN, you can't compare it with another NaN value. Instead use isnan() from <math.h> in C, or std::isnan() from <c...