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Append class if condition is true in Haml
... fyi: if you only want to include a class in a certain case and nothing in other cases you can just set nil and the attribute will not be set, instead of setting class=""
– MMachinegun
Aug 7 '14 at 10:45
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Meaning
...ly want to execute managed modules for requests that also go to a managed handler. The precondition in the following example (precondition="managedHandler") only enables the forms authentication module for requests that are also handled by a managed handler, such as requests to .aspx or .asmx files:...
:after vs. ::after
Is there any functional difference between the CSS 2.1 :after and the CSS 3 ::after pseudo-selectors (other than ::after not being supported in older browsers)? Is there any practical reason to use the newer specification?
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Git SVN error: a Git process crashed in the repository earlier
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The file in question is likely .git/index.lock and it should be safe to just remove it if you have no other git processes running. Make sure a git-svn command isn't hanging.
PS My usual approach to fixing git-svn problems is to make a fresh pull of the repository. Tim...
MySQL IF NOT NULL, then display 1, else display 0
...ULL) AS addressexists
This works because TRUE is displayed as 1 in MySQL and FALSE as 0.
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Difference between Rebuild and Clean + Build in Visual Studio
What is the difference between just a Rebuild and doing a Clean + Build in Visual Studio 2008? Is Clean + Build different then doing Clean + Rebuild ?
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List of strings to one string
...two also WORK, but I think the Join function was written for this purpose, and I would guess, the most efficient. I could be wrong though...
As per @Nuri YILMAZ without .ToArray(), but this is .NET 4+:
String.Join(String.Empty, los);
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What is `params.require(:person).permit(:name, :age)` doing in Rails 4?
...tionController::Parameters, which provides several methods such as require and permit.
The require method ensures that a specific parameter is present, and if it's not provided, the require method throws an error. It returns an instance of ActionController::Parameters for the key passed into requi...
How do you take a git diff file, and apply it to a local branch that is a copy of the same repositor
I have a .diff file created by a coworker, and would like to apply the changes listed in that diff file to my local branch of the exact same repository. I do not have access to that worker's pc or branch that was used to generate this diff file.
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In Objective-C, what is the equivalent of Java's “instanceof” keyword?
...if ([myObject isKindOfClass:[AnObject class]])
as suggested by Jon Skeet and zoul.
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