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Why does Convert.ToString(null) return a different value if you cast null?
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Following on from JaredPar's excellent overload resolution answer - the question remains "why does Convert.ToString(string) return null, but Convert.ToString(object) return string.Empty"?
And the answer to that is...because the docs say s...
What does the line “#!/bin/sh” mean in a UNIX shell script?
...t. Also, pay attention to proper formatting. Commands that would be issued from the command-line, like ps, and code excerpts like #!/bin/sh should be formatted.
– the Tin Man
Jan 5 '16 at 20:54
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How to define servlet filter order of execution using annotations in WAR
... JBoss EAP 6.1 - it overrides the @WebFilter value and prevents the filter from running at all.
– seanf
Oct 21 '13 at 5:11
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JavaScript plus sign in front of function expression
...e (+function() { ... })() notation can never execute without errors (apart from the fact that this doesn't answer the question).
– whitequark
Nov 15 '12 at 21:21
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Use of 'use utf8;' gives me 'Wide character in print'
...single byte characters. There are four bytes in your string as you can see from this:
$ perl -E 'say join ":", map { ord } split //, "鸡\n";'
233:184:161:10
The first three bytes make up your character, the last one is the line-feed.
The call to print sends these four characters to STDOUT. Your...
HTTP Content-Type Header and JSON
...he browser doesn't care what it is. The browser just returns you the data from the AJAX call. If you want to parse it as JSON, you need to do that on your own.
The header is there so your app can detect what data was returned and how it should handle it. You need to look at the header, and if it...
Can we have multiple in same ?
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Yes. From the DTD
<!ELEMENT table
(caption?, (col*|colgroup*), thead?, tfoot?, (tbody+|tr+))>
So it expects one or more. It then goes on to say
Use multiple tbody sections when rules
are needed between groups o...
How to read the mode field of git-ls-tree's output
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From the Git index-format.txt file, regarding the mode:
32-bit mode, split into (high to low bits)
4-bit object type
valid values in binary are 1000 (regular file), 1010 (symbolic link)
and 1110 (gitlink)
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What is the best way to implement constants in Java? [closed]
...shorthand isn't worth the possible confusion as to where the constant came from, when reading long code, MaxSeconds.MAX_SECONDS may be easier to follow then going up and looking at the imports.
– MetroidFan2002
Sep 15 '08 at 20:35
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How to properly check if std::function is empty in C++11?
...eaning to the phrase "implicit conversion", and it is distinctly different from "contextual conversion to bool," which also has a very specific meaning. There is no "Is-a" relationship here. I understand that beginners probably don't need to know the difference between implicit/explicit/contextual...