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Most efficient method to groupby on an array of objects
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For what's it's worth, tomitrescak's solution, while convenient, is significantly less efficient, as find() is probably O(n). The solution in the answer is O(n), from the reduce (object assignment is O(1), as is push), wherea...
Rails Root directory path?
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For super correctness, you should use:
Rails.root.join('foo','bar')
which will allow your app to work on platforms where / is not the directory separator, should anyone try and run it on one.
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Convert a series of parent-child relationships into a hierarchical tree?
... I'd like to turn into as few heirarchical tree structures as possible. So for example, these could be the pairings:
11 Ans...
URL Encoding using C#
I have an application which sends a POST request to the VB forum software and logs someone in (without setting cookies or anything).
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How does type Dynamic work and how to use it?
...r interface - the concrete implementation is filled-in by the compiler. As for Scalas String Interpolation feature there are well defined rules describing the generated implementation. In fact, one can implement four different methods:
selectDynamic - allows to write field accessors: foo.bar
updat...
Python: try statement in a single line
...hon. In any event, though it's been discussed, there is no one-line syntax for a try/except block. Luckily lines are cheap, so the 4-line solution should work for you. ;-)
– Mike Graham
Mar 26 '10 at 16:40
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What it the significance of the Javascript constructor property?
.... However, I think the overall gist still applies. Thanks to T. J. Crowder for pointing that out in the comments, and please read his answer for a fuller picture of the current situation.
Original answer
The constructor property makes absolutely no practical difference to anything internally. It's o...
Convert a PHP object to an associative array
...dClass;
}
}
var_dump( (array) new Foo );
Output (with \0s edited in for clarity):
array(3) {
'\0Foo\0foo' => int(1)
'\0*\0bar' => int(2)
'baz' => class stdClass#2 (0) {}
}
Output with var_export instead of var_dump:
array (
'' . "\0" . 'Foo' . "\0" . 'foo' => 1,
'' ....
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...POSTing wrapper model and changing the state of one entry to 'Modified'. Before changing the state, the state is set to 'Detached' but calling Attach() does throw the same error. I'm using EF6.
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Rspec doesn't see my model Class. uninitialized constant error
I'm writing tests on Rspec for my models in Ruby on Rails application.
And I receive this error while starting 'rspec spec'
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