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Should I initialize variable within constructor or outside constructor [duplicate]
...r)
{
this.arr=arr;
}
}
So depending on the situation sometime you will have to initialize in the top and sometimes in a constructor.
FYI other option's for initialization without using a constructor :
class Foo
{
int i;
static int k;
//instance initializer block
...
how to customize `show processlist` in mysql?
I want to order by Time,but seems no way to do that ?
6 Answers
6
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Javascript - Track mouse position
... page. (Tested on IE8, IE11, Firefox 30, Chrome 38.)
If you really need a timer-based solution, you combine this with some state variables:
(function() {
var mousePos;
document.onmousemove = handleMouseMove;
setInterval(getMousePosition, 100); // setInterval repeats every X ms
fu...
Can't specify the 'async' modifier on the 'Main' method of a console app
...bs = new Bootstrapper();
var list = await bs.GetList();
}
At compile time, the async entry point method will be translated to call GetAwaitor().GetResult().
Details: https://blogs.msdn.microsoft.com/mazhou/2017/05/30/c-7-series-part-2-async-main
EDIT:
To enable C# 7.1 language features, you...
Codesign error: Provisioning profile cannot be found after deleting expired profile
...
Sometimes your xcode project file gets messed up, especially if you have an old project and first created it with an older version of xcode/iphone sdk. What you need to do is open up the project file in a text editor, search for...
PHP-FPM doesn't write to error log
...
I struggled with this for a long time before finding my php-fpm logs were being written to /var/log/upstart/php5-fpm.log. It appears to be a bug between how upstart and php-fpm interact. See more here: https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1319...
Return HTTP status code 201 in flask
...ound = 404
invalid = 403
ok = 200
and using
return xyz, notfound
than time make sure its type is int not str. as I faced this small issue
also here is list of status code followed globally
http://www.w3.org/Protocols/HTTP/HTRESP.html
Hope it helps.
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Programmatic equivalent of default(Type)
...() rather than e.Compile()()? i.e. Can a type's default type change at runtime? If not (as I believe to be the case) you can just store cache the result rather than the compiled expression, which should improve performance further.
– JohnLBevan
Oct 2 '18 at 1...
Maximum filename length in NTFS (Windows XP and Windows Vista)?
...gles. I hit a limit at 200 characters. Then I just created a file with 255 times w, deleted that and created a folder with the same name on Windows 7 x64. Now the question is what is the limiting factor here: the NTFS version, the OS or the subsystem or the Win32 API in XP?
– 0...
How do I append one string to another in Python?
I want an efficient way to append one string to another in Python, other than the following.
10 Answers
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