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How to tell if a file is git tracked (by shell exit code)?
...ified: bla.sh
#
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# newbla
no changes added to commit (use "git add" and/or "git commit -a")
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How to persist a property of type List in JPA?
... because it is the only proposed solution which gives the full description including the TABLE structures and explains why we need the different annotations.
– Julien Kronegg
Jan 24 at 9:45
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How do I pass a unique_ptr argument to a constructor or a function?
...ent, corresponding to the fact that the desired effect of the function may include leaving a useful value in the argument variable. A caller with an rvalue expression that it wishes to pass to such a function would be forced to store it in a named variable to be able to make the call, since the lang...
Insert a line at specific line number with sed or awk
...e followed by a backslash and a newline. Also at least OS X's sed does not include a newline after the inserted text:
$ seq 3|gsed '2i1.5'
1
1.5
2
3
$ seq 3|sed '2i1.5'
sed: 1: "2i1.5": command i expects \ followed by text
$ seq 3|sed $'2i\\\n1.5'
1
1.52
3
$ seq 3|sed $'2i\\\n1.5\n'
1
1.5
2
3
To ...
SSH Key - Still asking for password and passphrase
...rase to the keychain. I had to give my public key to an administrator, and included a passphrase which became annoying to type every time. This is a clean solution when you don't have much control over your machine (-K, -k, -A did not work for me).
– gwg
Oct 5 ...
C# - how to determine whether a Type is a number
... That depends on what you want to achieve. In my case I needed to include nullables, too. But I also could think of situations where this is not a desired behaviour.
– Jürgen Steinblock
May 29 '14 at 5:23
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Storing JSON in database vs. having a new column for each key
...products provide performant JSON types that can store arbitrary documents, including support for indexing specific keys of the JSON object.
However, I still stand by my original statement that your default preference, when using a relational database, should still be column-per-value. Relational da...
How to make the window full screen with Javascript (stretching all over the screen)
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This code also includes how to enable full screen for Internet Explorer 9, and probably older versions,
as well as very recent versions of Google Chrome. The accepted answer may also be used for other browsers.
var el = document.documentE...
How do I abort/cancel TPL Tasks?
...ts while the other thread periodically checks and gracefully exits. .NET 4 includes a structure designed specifically for this purpose, the CancellationToken.
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Origin is not allowed by Access-Control-Allow-Origin
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If you have an ASP.NET / ASP.NET MVC application, you can include this header via the Web.config file:
<system.webServer>
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<httpProtocol>
<customHeaders>
<!-- Enable Cross Domain AJAX calls -->
<remove name="Acces...