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Is there a python equivalent of Ruby's 'rvm'?
...stall both at once with virtualenv burrito.
Update: the correct answer is now probably pyenv.
For scientific computing, the corresponding tool is anaconda.
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Can Vim highlight matching HTML tags like Notepad++?
...n vim.org.
You can get it here on github.
Hope it works for you. Let me know if you have any problems.
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When to use std::size_t?
...odel size or index in an array. size_t conveys semantics: you immediately know it represents a size in bytes or an index, rather than just another integer.
Also, using size_t to represent a size in bytes helps making the code portable.
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Search text in fields in every table of a MySQL database
...ill not work if the db dump file is really big (situation that I am having now :) )
– Boban
May 31 '17 at 12:32
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Is \d not supported by grep's basic expressions?
...'s -E mode does not. That's so glaring I'm shocked I'm just discovering it now.
– Keith Tyler
Jun 23 '16 at 0:20
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++someVariable vs. someVariable++ in JavaScript
...crement the variable; the value of the expression is the original value"
Now when used as a standalone statement, they mean the same thing:
x++;
++x;
The difference comes when you use the value of the expression elsewhere. For example:
x = 0;
y = array[x++]; // This will get array[0]
x = 0;
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Temporarily disable some plugins using pathogen in vim.
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The tilde strategy doesn't seem to work now (as of version 2.3).
– echristopherson
Mar 25 '14 at 1:46
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iOS: Access app-info.plist variables in code
...aryKey:@"CFBundleVersion"];
There is a gotcha in that the version number now has two attributes in the info.plist - but you get the idea? If you view your info.plist as source code (right click the info.plist - select Open As) then you will get to see all the various key names you can use.
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How to create a self-signed certificate with OpenSSL
... the Trust Store used by the browser.
Steps 2 - 4 are roughly what you do now for a public facing server when you enlist the services of a CA like Startcom or CAcert. Steps 1 and 5 allows you to avoid the third-party authority, and act as your own authority (who better to trust than yourself?).
Th...
How get integer value from a enum in Rails?
...turns the integer value
Update for rails 5
For rails 5 the above method now returns the string value :(
The best method I can see for now is:
my_model.sale_info_before_type_cast
Shadwell's answer also continues to work for rails 5.
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