大约有 43,000 项符合查询结果(耗时:0.0592秒) [XML]
Adding elements to object
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thank you, but my cart now is not an array and i can't do the cart.push :( i need an object to use JSON.stringify(cart) after this operation
– HypeZ
Jan 9 '13 at 12:03
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Generate GUID in MySQL for existing Data?
I've just imported a bunch of data to a MySQL table and I have a column "GUID" that I want to basically fill down all existing rows with new and unique random GUID's.
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How to detect if CMD is running as Administrator/has elevated privileges?
...this excellent answer instead.
Found this solution here: http://www.robvanderwoude.com/clevertricks.php
AT > NUL
IF %ERRORLEVEL% EQU 0 (
ECHO you are Administrator
) ELSE (
ECHO you are NOT Administrator. Exiting...
PING 127.0.0.1 > NUL 2>&1
EXIT /B 1
)
Assuming th...
Just disable scroll not hide it?
...ue as top property of the body element: with this approach the page will stand in its place, no matter if you're on top or if you have already scrolled.
Css
.noscroll { position: fixed; overflow-y:scroll }
JS
$('body').css('top', -(document.documentElement.scrollTop) + 'px')
.addClass...
Multiple modals overlay
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After seeing many fixes for this, and none of them were exactly what I needed I've came up with a even shorter solution that is inspired by @YermoLamers & @Ketwaroo.
Backdrop z-index fix
This solution uses a setTimeout because the .modal-backdrop isn't c...
Find UNC path of a network drive?
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In Windows, if you have mapped network drives and you don't know the UNC path for them, you can start a command prompt (Start → Run → cmd.exe) and use the net use command to list your mapped drives and their UNC paths:
C:\>net use
New connections will be remember...
How to reuse an ostringstream?
I'd like to clear out and reuse an ostringstream (and the underlying buffer) so that my app doesn't have to do as many allocations. How do I reset the object to its initial state?
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Effect of NOLOCK hint in SELECT statements
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NOLOCK typically (depending on your DB engine) means give me your data, and I don't care what state it is in, and don't bother holding it still while you read from it. It is all at once faster, less resource-intensive, and very very dangerous.
You should be warned to never do an update from or ...
What does it mean that Javascript is a prototype based language?
...of the objects which inherit from it.
Advantages
There may not be a hard and fast rule as to why prototypal inheritance is an advantageous form of code-reuse. Code reuse itself is advantageous, and prototypal inheritance is a sensible way of going about it. You might argue that prototypal inheri...
Program does not contain a static 'Main' method suitable for an entry point
...ad copied all file from an old project to a new Windows Store App project, and the Build Action was set to Page instead of ApplicationDefinition. I switched back to ApplicationDefinition, but I also had to delete the folder obj\Debug.
– Richard H
Jan 15 '13 at ...
