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Output array to CSV in Ruby
...h to read a CSV file into an array with Ruby but I can't find any good documentation on how to write an array into a CSV file. Can anyone tell me how to do this?
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Why can't variables be declared in a switch statement?
...this - why can't you declare variables after a case label in a switch statement? In C++ you can declare variables pretty much anywhere (and declaring them close to first use is obviously a good thing) but the following still won't work:
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Show an image preview before upload
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HTML5 comes with File API spec, which allows you to create applications that let the user interact with files locally; That means you can load files and render them in the browser without actually having to upload the files. Part of ...
Can you resolve an angularjs promise before you return it?
I am trying to write a function that returns a promise. But there are times when the information requested is available immediately. I want to wrap it in a promise so that the consumer doesn't need to make a decision.
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Is there any way in C# to override a class method with an extension method?
There have been occasions where I would want to override a method in a class with an extension method. Is there any way to do that in C#?
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What is an MvcHtmlString and when should I use it?
The documentation for MvcHtmlString is not terribly enlightening:
4 Answers
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How to inject dependencies into a self-instantiated object in Spring?
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You can do this using the autowireBean() method of AutowireCapableBeanFactory. You pass it an arbitrary object, and Spring will treat it like something it created itself, and will apply the various autowiring bits and pieces.
To get hold of the AutowireCapableBeanF...
Rails: confused about syntax for passing locals to partials
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The short answer is the render method looks at the first argument you pass in. If you pass in a hash (which includes :partial => 'foo', :locals => {blah blah blah}) then it will pass in all of your arguments as a hash and parse them accordingly.
I...
What's the best way to join on the same table twice?
...is a little complicated, but I have 2 tables. Let's say the structure is something like this:
5 Answers
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Is it smart to replace boost::thread and boost::mutex with c++11 equivalents?
...epend on it"(I tried explaining the quality of boost, then gave up after some time :( ). Smaller reason why I would like to do it is that I would like to learn c++11 features, because people will start writing code in it.
So:
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