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Pandas groupby: How to get a union of strings
I have a dataframe like this:
8 Answers
8
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Configure nginx with multiple locations with different root folders on subdomain
... }
location /static {
root /web/test.example.com;
}
}
http://nginx.org/r/root
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Save An Image To Application Documents Folder From UIView On IOS
I have a UIImageView that allows a user to place and hold an image until it can be saved. The problem is, I can't figure out how to actually save and retrieve the image I've placed in the view.
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Why should I use a pointer rather than the object itself?
I'm coming from a Java background and have started working with objects in C++. But one thing that occurred to me is that people often use pointers to objects rather than the objects themselves, for example this declaration:
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JavaScript unit test tools for TDD
...ld be easy to integrate with Hudson, Bamboo or other CI servers.
TestSwarm
https://github.com/jquery/testswarm
TestSwarm is officially no longer under active development as stated on their GitHub webpage. They recommend Karma, browserstack-runner, or Intern.
Jasmine
This is a behavior-driven framew...
Comprehensive beginner's virtualenv tutorial? [closed]
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This is very good: http://simononsoftware.com/virtualenv-tutorial-part-2/
And this is a slightly more practical one: https://web.archive.org/web/20160404222648/https://iamzed.com/2009/05/07/a-primer-on-virtualenv/
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Best practices to handle routes for STI subclasses in rails
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I suggest you take a look at : https://stackoverflow.com/a/605172/445908, using this method will enable you to use "form_for".
ActiveRecord::Base#becomes
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How to generate a random number in C++?
...0 and RAND_MAX
std::cout << random_number;
return 0;
}
http://en.cppreference.com/w/cpp/numeric/random/rand
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In PyCharm, how to go back to last location?
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Under ArchLinux with PyCharm CE 3.1 works the combination Ctrl + Alt + Left.
This is the way I find out the combination:
(Right click) Go To -> Implementation(s)
Double Shift -> Back
There is an option Back in the section Actions
Ctrl + Shift + A
And then the ...
What are the “must have” jQuery plugins? [closed]
...r Tabs, sortable lists, custom animations, drag and drop, etc.
AJAX Form (http://malsup.com/jquery/form/)
Changes your forms so they submit an AJAX request.
Cycle (http://malsup.com/jquery/cycle/)
For creating carousels, or an area which cycles through an array of data (images, text, etc)
Val...