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Check existence of input argument in a Bash shell script
... You probably want to add an exit 1 at the end of your echos inside the if block when the argument is required for the script to function. Obvious, but worth noting for completeness.
– msanford
Feb 5 '13 at 16:37
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ipad safari: disable scrolling, and bounce effect?
... function(e) {
e.preventDefault();
}
);
This will block the vertical scrolling and also any bounce back effect occurring on your pages.
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What is the difference between JSON and Object Literal Notation?
...ge-independent, meaning they can be processed by Java, Python, JavaScript, PHP, you name it.
In contrast, JavaScript is a programming language. Of course JavaScript also provides a way to define/describe data, but the syntax is very specific to JavaScript.
As a counter example, Python has the conc...
How to style a div to be a responsive square? [duplicate]
... background: #4679BD;
}
.square-box:before{
content: "";
display: block;
padding-top: 100%;
}
.square-content{
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
color: white;
text-align: center;
}
http://jsfiddle.net/38Tnx/1425/
...
Stack Memory vs Heap Memory [duplicate]
...mory is much as rskar says. In general, C++ objects allocated with new, or blocks of memory allocated with the likes of malloc end up on the heap. Heap memory almost always must be manually freed, though you should really use a smart pointer class or similar to avoid needing to remember to do so. Ru...
What does the keyword Set actually do in VBA?
... and not helpful for people arriving here with the Object variable or With block variable not set error from VBA :)
– AJP
Mar 8 '12 at 22:18
7
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ALTER DATABASE failed because a lock could not be placed on database
...r the effected database but also for master. In my case the issue that was blocking the database was related to a stored procedure that started a xp_cmdshell.
Check if you have any processes in KILL/RollBack state for master database
SELECT *
FROM sys.sysprocesses
WHERE cmd = 'KILLED/ROLLBACK'
I...
Correct way to define C++ namespace methods in .cpp file
...of more typing. Version 1 avoids this but captures the association with a block. Version 2 tends to hide this so I'd avoid that one.
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Introducing FOREIGN KEY constraint may cause cycles or multiple cascade paths - why?
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This worked for me; .NET 4.7, EF 6. One stumbling block was I got the error, so when I regenerated by migration script with these conventions removed, it didn't APPEAR to help. Running the "Add-Migration" with "-Force" cleared it all, and rebuilt it including these conventio...
Disable scrolling on ``
...{ $(this).blur(); }); I used blur instead of prevent default so it doesn't block the page from scrolling !
– Thibaut Colson
Feb 11 '13 at 13:21
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