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Bash/sh - difference between && and ;
I normally use ; to combine more than one command in a line, but some people prefer && . Is there any difference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell ...
Get item in the list in Scala?
How in the world do you get just an element at index i from the List in scala?
4 Answers
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What does “default” mean after a class' function declaration?
I've seen default used next to function declarations in a class. What does it do?
5 Answers
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What are all the possible values for HTTP “Content-Type” header?
I have to validate the Content-Type header value before passing it to an HTTP request.
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Install autoreconf on OS X v10.7 (Lion)?
I'm attempting to re-install Ruby 1.9.3 with a patch that will allow me to use ruby-debug .
6 Answers
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How can I change property names when serializing with Json.net?
I have some data in a C# DataSet object. I can serialize it right now using a Json.net converter like this
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What is the best django model field to use to represent a US dollar amount?
...e to use? I need to be able to have the user enter this value (with error checking, only want a number accurate to cents), format it for output to users in different places, and use it to calculate other numbers.
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How do PHP sessions work? (not “how are they used?”)
... on the server, and named sess_{session_id} . I have been looking at the contents and cannot figure out how they really work.
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Web Reference vs. Service Reference
I just hit a huge brick wall with Paypal. I had created a regular C# project to create some wrapper classes using their WSDL.
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What's the difference between detaching a Fragment and removing it?
In the Android docs for a FragmentTransaction I noticed two very similar methods: detach and remove . The descriptions over there don't seem to provide much insight about when to use each, and from what I can tell they appear to be the same.
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