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Select unique or distinct values from a list in UNIX shell script
I have a ksh script that returns a long list of values, newline separated, and I want to see only the unique/distinct values. It is possible to do this?
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Android: How to stretch an image to the screen width while maintaining aspect ratio?
...to download an image (of unknown size, but which is always roughly square) and display it so that it fills the screen horizontally, and stretches vertically to maintain the aspect ratio of the image, on any screen size. Here is my (non-working) code. It stretches the image horizontally, but not vert...
Can you overload controller methods in ASP.NET MVC?
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The main downfall of using this and overloading your action is that it can no longer be rendered by the same view file.
– Jeff Martin
Apr 3 '10 at 17:15
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How to add MVC5 to Visual Studio 2013?
I'm starting a new project, and would like to give a try to MVC 5 (I have built a web app using MVC 4 before).
8 Answers
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@ variables in Ruby on Rails
What's the difference between @title and title ? Since both of them can be variable names. Also, how do I decide which kind of variable I should use? With @ or not?
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When should I really use noexcept?
...r every function declaration would greatly reduce programmer productivity (and frankly, would be a pain).
Well, then use it when it's obvious that the function will never throw.
When can I realistically expect to observe a performance improvement after using noexcept? [...] Personally, I care ...
How can I sort a List alphabetically?
...ator.getInstance());
Solution with a TreeSet
If you are free to decide, and if your application might get more complex, then you might change your code to use a TreeSet instead. This kind of collection sorts your entries just when they are inserted. No need to call sort().
Collection<String&g...
CSS Font Border?
... a -webkit prefix.
h1 {
-webkit-text-stroke: 2px black; /* width and color */
font-family: sans; color: yellow;
}
<h1>Hello World</h1>
Another possible trick would be to use four shadows, one pixel each on all directions, using property text-shadow:
h1 {
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How do I disable form fields using CSS?
...ut[name=username] {
pointer-events: none;
}
</style>
Update:
and if want to disable from tab index you can use it this way:
<input type="text" name="username" value="admin" tabindex="-1" >
<style type="text/css">
input[name=username] {
pointer-events: none;
}
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Use C++ with Cocoa Instead of Objective-C?
I would like to write applications that use C++ and the Cocoa frameworks because Apple is not making Carbon 64-bit capable. C++ seems to be pretty vanilla in its implementation on Linux and Windows but on Mac OS X it seems like additional Apple specific pieces of code are required (like an Obj-C wra...