大约有 7,000 项符合查询结果（耗时：0.0302秒） [XML]
Why does an NSInteger variable have to be cast to long when used as a format argument?
...nd all the casts and choosing the right string format specifier.
NSNumber foo = @9000;
NSLog(@"foo: %@", foo);
NSInteger bar = 9001;
NSLog(@"bar: %@", @(bar));
It also works for NSUIntegers without having to worry about that.
See answer to NSInteger and NSUInteger in a mixed 64bit / 32bit enviro...
Comparing two collections for equality irrespective of the order of items in them
...collections for equality.
/// </summary>
/// <param name="foo">The first collection.</param>
/// <param name="bar">The second collection.</param>
/// <returns>True if both collections have the same content, false otherwise.</returns>
publ...
Is it possible to dynamically compile and execute C# code fragments?
...ers = new CompilerParameters(new[] { "mscorlib.dll", "System.Core.dll" }, "foo.exe", true);
parameters.GenerateExecutable = true;
CompilerResults results = csc.CompileAssemblyFromSource(parameters,
@"using System.Linq;
class Program {
public static v...
When do you use the “this” keyword? [closed]
... 8. To invoke an extension method on the current instance (this.Foo(); will work, but Foo() will not)
– Marc Gravell♦
Nov 17 '11 at 13:20
4
...
How do I get an HttpContext object from HttpContextBase in ASP.NET MVC 1?
...mple illustrates how you can do this. It supposes you have a method called Foo that accepts context as HttpContextBase but then needs to call a method in a third-party assembly (that you may not have the good fortune to modify) that is expecting the context to be typed as HttpContext.
void Foo(Http...
Why use the params keyword?
... allows you to call the method with a single argument.
private static int Foo(params int[] args) {
int retVal = 0;
Array.ForEach(args, (i) => retVal += i);
return retVal;
}
i.e. Foo(1); instead of Foo(new int[] { 1 });. Can be useful for shorthand in scenarios where you might need ...
String strip() for JavaScript? [duplicate]
...ri 5.x), although IE 8 and older do not support it. Usage is simple:
" foo\n\t ".trim() => "foo"
See also:
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/Trim
http://msdn.microsoft.com/en-us/library/windows/apps/ff679971%28v=vs.94%29.aspx
...
Linking to other Wiki pages on GitHub? [closed]
... whether Markdown or MediaWiki syntax. For example, ``` [[Description of foo|Foo]] ``` will render the (code-formatted) source markup, not the intended link. If anyone knows a way around this, please let me know.
– Jeff Dickey
Mar 2 '19 at 6:19
...
What is getattr() exactly and how do I use it?
...ethod name.
For example, you cannot do this:
obj = MyObject()
for x in ['foo', 'bar']:
obj.x()
because x is not of the type builtin, but str. However, you CAN do this:
obj = MyObject()
for x in ['foo', 'bar']:
getattr(obj, x)()
It allows you to dynamically connect with objects based o...
SVN - Checksum mismatch while updating
...
Note that you can "svn update --set-depth exclude file.foo" and "svn update file.foo" to operate on one file only, not a whole folder.
– Sinus Mackowaty
Dec 20 '19 at 17:28
...