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Using vagrant to run virtual machines with desktop environment
...M and uncomment these lines in Vagrantfile:
config.vm.provider :virtualbox do |vb|
vb.gui = true
end
Boot the VM and observe the new display window. Now you just need to install and start xfce4. Use vagrant ssh and:
sudo apt-get install xfce4
sudo startxfce4&
If this is the first time you'r...
How can I find out the current route in Rails?
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Would you happen to know if this is the same/right way to do it in Rails 3? I'm sure it's still accessible, but I just want to be sure that I'm adhering to the latest conventions.
– John
Oct 29 '10 at 20:46
...
How do I set the UI language in vim?
...once at startup, very early on, and not re-read again later. So you really do need to set LC_ALL (or more specifically LC_MESSAGES) in your environment – or on non-Unixoid systems (eg. Windows), you can pass the --cmd switch (which executes the given command first thing, as opposed to the -c optio...
Checking if an object is a given type in Swift
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If you want to check against a specific type you can do the following:
if let stringArray = obj as? [String] {
// obj is a string array. Do something with stringArray
}
else {
// obj is not a string array
}
You can use "as!" and that will throw a runtime error if obj...
How do I PHP-unserialize a jQuery-serialized form?
...'#form').serialize() , I was able to send this over to a PHP page. Now how do I unserialize it in PHP? It was serialized in jQuery.
...
Why is January month 0 in Java Calendar?
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It's just part of the horrendous mess which is the Java date/time API. Listing what's wrong with it would take a very long time (and I'm sure I don't know half of the problems). Admittedly working with dates and times is tricky, but aaargh anyway.
Do y...
Setup RSpec to test a gem (not Rails)
...up
require 'your_gem_name' # and any other gems you need
RSpec.configure do |config|
# some (optional) config here
end
The first two lines tell Bundler to load only the gems inside your gemspec. When you install your own gem on your own machine, this will force your specs to use your current c...
In what cases do I use malloc and/or new?
...d never use malloc. Always use new.
If you need a big chunk of data just do something like:
char *pBuffer = new char[1024];
Be careful though this is not correct:
//This is incorrect - may delete only one element, may corrupt the heap, or worse...
delete pBuffer;
Instead you should do this w...
How do I make a batch file terminate upon encountering an error?
... calling the same executable over and over with different parameters. How do I make it terminate immediately if one of the calls returns an error code of any level?
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How do I fire an event when a iframe has finished loading in jQuery?
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I'm pretty certain that it cannot be done.
Pretty much anything else than PDF works, even Flash. (Tested on Safari, Firefox 3, IE 7)
Too bad.
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