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Why isn't std::initializer_list a language built-in?
It seems to me that it's quite an important feature of C++11 and yet it doesn't have its own reserved keyword (or something alike).
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Conditional HTML Attributes using Razor MVC3
... Razor 2 (Web Pages 2 and MVC 4) we'll have conditional attributes built into Razor(as of MVC 4 RC tested successfully), so you can just say things like this...
<input type="text" id="@strElementID" class="@strCSSClass" />
If strCSSClass is null then the class attribute won't render at all....
What's an object file in C?
...lation phase. It's mostly machine code, but has info that allows a linker to see what symbols are in it as well as symbols it requires in order to work. (For reference, "symbols" are basically names of global objects, functions, etc.)
A linker takes all these object files and combines them to for...
How do you work with an array of jQuery Deferreds?
...omises).done(function() { ... }).fail(function() { ... });`
You'll want to pass $ instead of null so that this inside $.when refers to jQuery. It shouldn't matter to the source but it's better then passing null.
Mocked out all your $.ajax by replacing them with $.when and the sample works
So it...
How to check that a string is an int, but not a double, etc.?
PHP has an intval() function that will convert a string to an integer. However I want to check that the string is an integer beforehand, so that I can give a helpful error message to the user if it's wrong. PHP has is_int() , but that returns false for string like "2" .
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How does Go update third-party packages?
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go get will install the package in the first directory listed at GOPATH (an environment variable which might contain a colon separated list of directories). You can use go get -u to update existing packages.
You can also use go get -u all to update all packages in your GOPA...
How to plot two histograms together in R?
...as a single numeric column which lists the length of all measured carrots (total: 100k carrots) and cucumbers (total: 50k cucumbers).
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Git update submodules recursively
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git submodule update --recursive
You will also probably want to use the --init option which will make it initialize any uninitialized submodules:
git submodule update --init --recursive
Note: in some older versions of Git, if you use the --init option, already-initialized submodules...
How to create a protocol with methods that are optional?
I noticed methods marked optional in several protocols defined in the iPhone SDK, such as the UIActionSheetDelegate protocol for example.
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Generating a drop down list of timezones with PHP
Most sites need some way to show the dates on the site in the users preferred timezone. Below are two lists that I found and then one method using the built in PHP DateTime class in PHP 5.
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