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Ruby : How to write a gem? [closed]
I'd like to write a package for Ruby and make it available as a gem.
What are the tools, steps and pitfalls ?
Are there any good tutorials, screencasts, etc., which helped you learning how to do it ?
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Replace spaces with dashes and make all letters lower-case
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Just use the String replace and toLowerCase methods, for example:
var str = "Sonic Free Games";
str = str.replace(/\s+/g, '-').toLowerCase();
console.log(str); // "sonic-free-games"
Notice the g flag on the RegExp, it will make the replacement global...
What is the difference between SQL Server 2012 Express versions?
... this page http://www.microsoft.com/en-us/download/details.aspx?id=29062 and I am a bit confused about the different versions here.
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How can I properly handle 404 in ASP.NET MVC?
.../shay/archive/2009/03/06/real-world-error-hadnling-in-asp-net-mvc-rc2.aspx and works in ASP.net MVC 1.0 as well
Here's how I handle http exceptions:
protected void Application_Error(object sender, EventArgs e)
{
Exception exception = Server.GetLastError();
// Log the exception.
ILogger ...
Convert light frequency to RGB?
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And the Fourmilab article makes the important point that some colours are not representable in RGB (bright oranges being a good example) because you cannot "make" arbitrary colours of light by adding three primary colours tog...
Why don't :before and :after pseudo elements work with `img` elements? [duplicate]
... Note. This specification does not fully define the interaction of :before and :after with replaced elements (such as IMG in HTML). This will be defined in more detail in a future specification.
I guess this means they don't work with img elements (for now).
Also see this answer.
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functional interface that takes nothing and returns nothing [duplicate]
Is there a standard functional interface in the JDK that takes nothing and returns nothing? I cannot find one. Something like the following:
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std::function and std::bind: what are they, and when should they be used?
I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ .
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Re-enabling window.alert in Chrome
I accidently checked the "disable alerts from this site" box in Chrome, and now I cannot get any window.alert to work on my localhost.
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What is the maximum length of a URL in different browsers?
...under 2000 characters, they'll work in virtually any combination of client and server software.
If you are targeting particular browsers, see below for more details specific limits.
Longer answer - first, the standards...
RFC 2616 (Hypertext Transfer Protocol HTTP/1.1) section 3.2.1 says
The HTTP p...