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git - pulling from specific branch
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Personally I am interested in the flow when I want to pull one specific branch from origin that hasn't been fetched yet and put those object on separate branch, so my current branch is not merged with what I'm pulling.
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Use rvmrc or ruby-version file to set a project gemset with RVM?
...f your .rvmrc file contains custom shell code, continue using .rvmrc as it allows you to include any shell code.
If your only aim is to switch Ruby versions, then use .ruby-version which is supported by other Ruby version switchers such as rbenv or chruby. This file also does not require trusting a...
Safe integer parsing in Ruby
...bers, such as those starting with 0x for hex and 0b for binary, and potentially more tricky numbers starting with zero that will be parsed as octal.
Ruby 1.9.2 added optional second argument for radix so above issue can be avoided:
Integer('23') # => 23
Integ...
How to shift a column in Pandas DataFrame
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@WaylonWalker That's called rolling in numpy: df['x2'] = np.roll(df['x2'], 1)
– ayhan
Nov 25 '17 at 17:35
1
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jquery stop child triggering parent event
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an alternative to calling e.stopPropagation() is to return false from that child handler.
– ToolmakerSteve
Jul 24 at 19:54
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How do I catch an Ajax query post error?
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@Yuck $.post can accept an error callback using deferred objects. Take a look at my answer below for an example.
– Michael Venable
Aug 24 '12 at 21:18
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Node / Express: EADDRINUSE, Address already in use - Kill server
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process.on('exit', ..) isn't called if the process crashes or is killed. It is only called when the event loop ends, and since server.close() sort of ends the event loop (it still has to wait for currently running stacks here and there) it makes no sense ...
What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
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ExecuteScalar is typically used when your query returns a single value. If it returns more, then the result is the first column of the first row. An example might be SELECT @@IDENTITY AS 'Identity'.
ExecuteReader is used for any result set with m...
Ruby - elegantly convert variable to an array if not an array already
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@mastaBlasta Array(arg) tries to create a new array by calling to_ary, then to_a on the argument. This is documented in official ruby docs. I learned about it from Avdi's "Confident Ruby" book.
– mambo
Jul 27 '16 at 15:41
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Can I read the hash portion of the URL on my server-side application (PHP, Ruby, Python, etc.)?
...ect to that other url in your other page. Not awesome, and doesnt work for all use cases of course, but does work for bookmarks. Note that if you do this, you shouldnt allow redirects to absolute urls, only relative urls, to ensure you don't open yourself up to unsafe redirects
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