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How to swap files between windows in VIM?
...trl-W, Shift-J and Ctrl-W, Shift-L). See:
:help window-moving
for more information.
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What are the differences between Clojure, Scheme/Racket and Common Lisp?
...are transactional memory at the language level (worth watching: http://www.infoq.com/presentations/Value-Identity-State-Rich-Hickey)
Scheme distinctive features:
Arguably the simplest and easiest to learn Lisp
Hygienic macros (see http://en.wikipedia.org/wiki/Hygienic_macro) - elegantly avoids t...
Wrap a delegate in an IEqualityComparer
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Very interesting, thanks for the info. I had no idea GetHashCode had these LINQ implications until seeing these answers. Great to know for future use.
– Justin Morgan
May 10 '12 at 14:51
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What is external linkage and internal linkage?
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Info that might greatly enhance this answer: 1) static is not deprecated anymore in C++11. 2) anonymous namespace members in C++11 have internal linkage by default. See stackoverflow.com/questions/10832940/…
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SQL - many-to-many table primary key
...ce (it may be updated occasionally but that's unlikely to change key/index info, more to hit things like order status. However, those updates and the selects you'll need to do to print out invoices or generate management reports are going to outweigh the original insert.
– paxd...
Why is a 3-way merge advantageous over a 2-way merge?
... first line, and that your friend added the last line. And it can use that information to produce the merged version.
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Mongodb Explain for Aggregation framework
...ions
As at MongoDB 3.4, the Aggregation Framework explain option provides information on how a pipeline is processed but does not support the same level of detail as the executionStats mode for a find() query. If you are focused on optimizing initial query execution you will likely find it benefici...
What is the difference between “px”, “dip”, “dp” and “sp”?
...-+-------------+---------------+-------------+--------------------+
More info can be also be found in the Google Design Documentation.
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Why can't I use Docker CMD multiple times to run multiple services?
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Even though CMD is written down in the Dockerfile, it really is runtime information. Just like EXPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, the...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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I think http://hasno.info/ruby-gotchas-and-caveats has a decent explanation of the difference:
catch/throw are not the same as raise/rescue. catch/throw allows you to quickly exit blocks back to a point where a catch is defined for a specific...