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Why is it Valid to Concatenate Null Strings but not to Call “null.ToString()”?
...ng, but it does not convert the value of the original null string.
More information on the + binary operator:
The binary + operator performs string concatenation when one or both operands are of type string.
If an operand of string concatenation is null, an empty string is substituted. Otherwise, ...
How to use greater than operator with date?
... It bears noting that MySQL seems a bit picky about the date format; while either 2019/02/08 21:04:07 or 2019-02-08 21:04:07 produces the expected outcome, 02-08-2019 21:04:07, using the US date format, casts a much wider net.
– David A. Gray
Feb ...
Java “params” in method signature?
...xchange.using('gps', function() { StackExchange.gps.track('embedded_signup_form.view', { location: 'question_page' }); });
$window.unbind('scroll', onScroll);
}
};
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Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?
...ot faster.
If you really care, compile with assembler output for your platform and look to see.
It doesn't matter. This never matters. Write your infinite loops however you like.
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MySQL Select all columns from one table and some from another table
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I need more information really but it will be along the lines of..
SELECT table1.*, table2.col1, table2.col3 FROM table1 JOIN table2 USING(id)
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What does the exclamation mark do before the function?
...gly concatenated with a file that doesn't end with a ;. If you have the () form, it would consider it a function call of whatever was defined in the previous file. Tip of the hat to a co-worker of mine.
– Jure Triglav
Nov 13 '12 at 20:31
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entity object cannot be referenced by multiple instances of IEntityChangeTracker. while adding relat
...the way you figured it out even if answer didn't include some background information.
– Daniel Kmak
Jul 12 '14 at 13:43
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How does OpenID authentication work?
...heir blog, photostream, profile page, etc. With OpenID you can easily transform one of these existing URIs into an account which can be used at sites which support OpenID logins.
OpenID
Difference between OpenID and conventional authentification form?
The difference is that the identification will ...
Is there a built-in function to print all the current properties and values of an object?
... 'meta_path', 'modules', 'path', 'path_hooks', 'path_importer_
ache', 'platform', 'prefix', 'ps1', 'ps2', 'setcheckinterval', 'setprofile', 'setrecursionlimit
, 'settrace', 'stderr', 'stdin', 'stdout', 'subversion', 'version', 'version_info', 'warnoption
', 'winver']
>>>
Another useful fe...
Incompatible implicit declaration of built-in function ‘malloc’
... necessarily, which is precisely the reason for the warning. Ex: a x64 platform with 64-bit data pointers and 32-bit int values will puke goat feces, while a x86 32bit-data-pointer/32bit-int can seemingly work correctly. Neither are correct, as in neither case is the compiler aware of what malloc ac...