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Git diff output to file preserve coloring
...ion and open it in Notepad++ or Vim or SublimeText.
git diff > 20150203_someChanges.diff
Thanks @Monsingor
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Effects of the extern keyword on C functions
...tion. It is ugly, and unnecessary 99.99% of the time (I could be off by an order or two or magnitude, overstating how often it is necessary). It usually occurs when people misunderstand that a header is only needed when other source files will use the information; the header is (ab)used to store de...
What is the reason for performing a double fork when creating a daemon?
...On some flavors of Unix, you are forced to do a double-fork on startup, in order to go into daemon mode. This is because single forking isn’t guaranteed to detach from the controlling terminal."
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What character encoding should I use for a HTTP header?
...r LF or HT? Can header values contain the characters CR, LF, and HT in any order and amount?)
– Pacerier
Jul 29 '16 at 13:17
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Will HTML5 allow web apps to make peer-to-peer HTTP connections?
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UPDATE 10/17/2012: This functionality now exists in Chrome Stable v22. In order to use this functionality in Chrome, one must enable two flags in chrome://flags:
Enable MediaStream
Enable PeerConnection
Then you can visit the AppRTC Demo Page to try out the demo. See the WebRTC - Running the De...
Simple way to create matrix of random numbers
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You can drop the range(len()):
weights_h = [[random.random() for e in inputs[0]] for e in range(hiden_neurons)]
But really, you should probably use numpy.
In [9]: numpy.random.random((3, 3))
Out[9]:
array([[ 0.37052381, 0.03463207, 0.10669077],
[ 0.05...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
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They all do different things, since matplotlib uses a hierarchical order in which a figure window contains a figure which may consist of many axes. Additionally, there are functions from the pyplot interface and there are methods on the Figure class. I will discuss both cases below.
pyplot ...
Ruby on Rails: How can I revert a migration with rake db:migrate?
...to revert.
eg. if you want to revert a migration with file name 3846656238_create_users.rb
rake db:migrate:down VERSION=3846656238
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In C#, how do I calculate someone's age based on a DateTime type birthday?
..., the current year times 10000 is nowhere near an integer overflow, by two orders of magnitude. 20,150,000 vs 2,147,483,648
– GalacticCowboy
Sep 3 '15 at 20:23
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How to keep Maven profiles which are activeByDefault active even if another profile gets activated?
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Profiles are a good way to bring some order into POM.
Especially if you use multiple executions of the same plugin for different purposes.
Using files:
<profile>
<id>alwaysActive</id>
<activation>
<file><exists&...