大约有 12,000 项符合查询结果（耗时：0.0251秒） [XML]
Check number of arguments passed to a Bash script
...h GNU test. It also happens to work with FreeBSD test, but may not work on foo test. The only standard comparison is = (just FYI).
– Martin Tournoij
Jul 22 '14 at 8:31
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Any reason to write the “private” keyword in C#?
...re restrictive than the other:
// Public getter, public setter
public int Foo { get; set; }
// Public getter, private setter
public int Bar { get; private set; }
I used to go with defaults everywhere I could, but I've been convinced (partly by Eric Lippert) that making it clear that you've thoug...
How do I tar a directory of files and folders without including the directory itself?
...iles to be processed. Consider the following command: tar --create --file=foo.tar -C /etc passwd hosts -C /lib libc.a" apl.jhu.edu/Misc/Unix-info/tar/tar_65.html I always try tar -czvf my_directory.tar.gz * -C my_directory and that does not work. -C location is important! Damn tar...
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How to validate an e-mail address in swift?
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Same as Cullen SUN, foo@bar return true.
– Rémy Virin
Oct 15 '15 at 23:22
4
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What is Node.js? [closed]
...exically scoped variables across call chains. ;) Like this:
var myData = "foo";
database.connect( 'user:pass', function myCallback( result ) {
database.query("SELECT * from Foo where id = " + myData);
} );
// Note that doSomethingElse() executes _BEFORE_ "database.query" which is inside a callb...
Sell me on const correctness
... with a common error that const correctness can protect you against:
void foo(const int DEFCON)
{
if (DEFCON = 1) //< FLAGGED AS COMPILER ERROR! WORLD SAVED!
{
fire_missiles();
}
}
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Make a URL-encoded POST request using `http.NewRequest(…)`
...m"
resource := "/user/"
data := url.Values{}
data.Set("name", "foo")
data.Set("surname", "bar")
u, _ := url.ParseRequestURI(apiUrl)
u.Path = resource
urlStr := u.String() // "https://api.com/user/"
client := &http.Client{}
r, _ := http.NewRequest(http.Method...
How do you get assembler output from C/C++ source in gcc?
...u like to write in NASM syntax though. objdump -drwC -Mintel | less or gcc foo.c -O1 -fverbose-asm -masm=intel -S -o- | less are useful. (See also How to remove “noise” from GCC/clang assembly output?). -masm=intel works with clang, too.
– Peter Cordes
Se...
How do I split a string with multiple separators in javascript?
...pattern doesn't match:
>>> bits = "Hello awesome, world!".split(/foo/)
["Hello awesome, world!"]
>>> bits[bits.length - 1]
"Hello awesome, world!"
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Unnecessary curly braces in C++?
...mple 2:
namespace N1 { class A { }; }
namespace N2 { class A { }; }
void foo() {
{
using namespace N1;
A a; // N1::A.
// ...
}
{
using namespace N2;
A a; // N2::A.
// ...
}
}
Practical situations when this is useful are rare and ...