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Adding placeholder text to textbox

...der text it is possible to use the Windows SendMessage function to send EM_SETCUEBANNER message to our textbox to do the work for us. This can be done with two easy steps. First we need to expose the Windows SendMessage function. private const int EM_SETCUEBANNER = 0x1501; [DllImport("user32.dll...
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How to convert a string to number in TypeScript?

..., or simply use the unary + operator: var x = "32"; var y: number = +x; All of the mentioned techniques will have correct typing and will correctly parse simple decimal integer strings like "123", but will behave differently for various other, possibly expected, cases (like "123.45") and corner c...
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How to filter None's out of List[Option]?

... someList.filter(_.isDefined) if you want to keep the result type as List[Option[A]] share | improve this answer | f...
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What is a “context bound” in Scala?

... Iterable[T]) = xs zip ys map { t => implicitly[Numeric[T]].times(t._1, t._2) } or def **[T : Numeric](xs: Iterable[T], ys: Iterable[T]) = xs zip ys map { t => context[T]().times(t._1, t._2) } share ...
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How do I remove javascript validation from my eclipse project?

... I actually like MY JavaScript files to be validated, but I definitely don't want to validate and deal with trivial warnings with third party libraries. That's why I think that turning off validation all together is too drastic. F...
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How can I generate random alphanumeric strings?

...retty much linearly when generating longer strings (so long as there's actually enough memory available). Having said that, Dan Rigby's answer was almost twice as fast as this one in every test. – LukeH Aug 28 '09 at 0:33 ...
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How to find corresponding log files folder for a web site?

... Ok, I've found this property - it's called "site id" and resides in "Advanced Properties" of the website. share | improve this answer | ...
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Total size of the contents of all the files in a directory [closed]

... @Arkady I have tried your solution on CentOS and Ubuntu, and there is a small error. You want "du -sbh". The "-h" flag must come last. – theJollySin Oct 16 '15 at 22:49 ...
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Could not load file or assembly 'System.Web.Mvc'

... I just wrote a blog post addressing this. You could install ASP.NET MVC on your server OR you can follow the steps here. EDIT: (by jcolebrand) I went through this link, then had the same issue as Victor below, so I suggest you also add these: * Microsoft.Web.Infrastructure * S...
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Intersection of two lists in Bash

... comm requires the inputs to be sorted. In this case, ls automatically sorts its output, but other uses may need to do this: comm -12 <(some-command | sort) <(some-other-command | sort) – Alexander Bird Jan 15 '15 at 21:11 ...