大约有 12,000 项符合查询结果（耗时：0.0392秒） [XML]
Why use prefixes on member variables in C++ classes
...g underscore before a capital letter in a word is reserved.
For example:
_Foo
_L
are all reserved words while
_foo
_l
are not. There are other situations where leading underscores before lowercase letters are not allowed. In my specific case, I found the _L happened to be reserved by Visual ...
Sorting an IList in C#
...
You can use LINQ:
using System.Linq;
IList<Foo> list = new List<Foo>();
IEnumerable<Foo> sortedEnum = list.OrderBy(f=>f.Bar);
IList<Foo> sortedList = sortedEnum.ToList();
...
What is meant by immutable?
...y, there are no locking issues with objects that never change
e.g.
class Foo
{
private final String myvar;
public Foo(final String initialValue)
{
this.myvar = initialValue;
}
public String getValue()
{
return this.myvar;
}
}
Foo doesn't hav...
What's the cleanest way of applying map() to a dictionary in Swift?
... problem.
#1. Using Dictionary mapValues(_:) method
let dictionary = ["foo": 1, "bar": 2, "baz": 5]
let newDictionary = dictionary.mapValues { value in
return value + 1
}
//let newDictionary = dictionary.mapValues { $0 + 1 } // also works
print(newDictionary) // prints: ["baz": 6, "foo": 2...
Best way to require all files from a directory in ruby?
... .rb extension is optional. Technically it changes the meaning: "require 'foo.rb'" requires foo.rb, whereas "require 'foo'" might require foo.rb, foo.so or foo.dll.
– Sam Stokes
Apr 9 '09 at 17:46
...
What does jQuery.fn mean?
... structure that resembles the architecture of jQuery:
(function() {
var foo = function(arg) { // core constructor
// ensure to use the `new` operator
if (!(this instanceof foo))
return new foo(arg);
// store an argument for this example
this.myArg = arg;
//..
};
// ...
Git copy file preserving history [duplicate]
...(using git log) for both files.
Suppose you want to create a copy of file foo called bar. In that case the workflow you'd use would look like this:
git mv foo bar
git commit
SAVED=`git rev-parse HEAD`
git reset --hard HEAD^
git mv foo copy
git commit
git merge $SAVED # This will generate con...
How to run test cases in a specified file?
...o name the specific file, containing the tests you want to run:
$ go test foo_test.go
But there's a catch. This works well if:
foo.go is in package foo.
foo_test.go is in package foo_test and imports 'foo'.
If foo_test.go and foo.go are the same package (a common case) then you must name all ...
How different is Objective-C from C++? [closed]
...esn't allow implicit method overloading, but C++ does. That is, in C++ int foo (void) and int foo (int) define an implicit overload of the method foo, but to achieve the same in Objective-C requires the explicit overloads - (int) foo and - (int) foo:(int) intParam. This is due to Objective-C's named...
How to add a new method to a php object on the fly?
...
You can harness __call for this:
class Foo
{
public function __call($method, $args)
{
if (isset($this->$method)) {
$func = $this->$method;
return call_user_func_array($func, $args);
}
}
}
$foo = new Foo();...