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How can I delete all Git branches which have been merged?
...
This produces an error fatal: branch name required if you have no branches that should be deleted. To avoid that you can pass -r to xargs so it won't run git branch -d if the stdin is empty. (This a GNU xargs extension, according to the man...
Validate that a string is a positive integer
...(expect === undefined ? "" : !!expect === !!result ? " <= OK" : " <= ERROR ***")
);
}
gid("btn").addEventListener(
"click",
function() {
test(gid("text").value);
},
false
);
test("1", true);
test("1.23", false);
test("1234567890123", true);
test("123456...
What are free monads?
...ome time, but everyone just seems to use/discuss them without giving an explanation of what they are. So: what are free monads? (I'd say I'm familiar with monads and the Haskell basics, but have only a very rough knowledge of category theory.)
...
Edit and Continue: “Changes are not allowed when…”
... a clean WinForms project, Edit and Continue doesn't work and gives me the error:
36 Answers
...
AES Encryption for an NSString on the iPhone
... aside from the extra comma in each call to CCCrypt() which caused compile errors.
A later comment on that post includes this adapted code, which works for me, and seems a bit more straightforward. If you include their code for the NSData category, you can write something like this: (Note: The prin...
ReSharper warns: “Static field in generic type”
...jority of cases, having a static field in a generic type
is a sign of an error. The reason for this is that a static field in a
generic type will not be shared among instances of different close
constructed types. This means that for a generic class C<T> which
has a static field X, the...
PHP exec() vs system() vs passthru()
...n status"). Zero usually means it was successful, other values are usually error codes.
Other misc things to be aware of:
The shell_exec() and the backticks operator do the same thing.
There are also proc_open() and popen() which allow you to interactively read/write streams with an executing co...
Effects of the extern keyword on C functions
...fine a file scope variable. For example,
extern int i = 4;
will give an error or warning, depending on the compiler.
Usage of extern is useful if you explicitly want to avoid definition of a variable.
Let me explain:
Let's say the file a.c contains:
#include "a.h"
int i = 2;
int f() { i++; ...
Real escape string and PDO [duplicate]
... Piskvor, thanks. I'm already using them just not where I'm getting the errors. I just was wondering if prepare really stops injection attacks. I've heard to the contrary and there seems to be a a lot of debate over it.
– John
Sep 15 '10 at 9:43
...
Why are #ifndef and #define used in C++ header files?
...ulate a form which was opened by the form to manipulate. It gaveme lots of errors and I didn't know what to do. I gave up =)
– user142019
Oct 31 '09 at 10:58
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