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How to use redis PUBLISH/SUBSCRIBE with nodejs to notify clients when data values change?
...m Hapi and can easily be used with a basic node.js http server or express (etc.)
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Is Hash Rocket deprecated?
...the obvious manner of course:
h = { }
h[:'where.is'] = 'pancakes house?'
# etc.
but that's just ugly and unnecessary.
The rocket isn't going anywhere without crippling Ruby's Hashes.
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How to automatically install Emacs packages by specifying a list of package names?
...tivate all the packages (in particular autoloads)
(package-initialize)
; fetch the list of packages available
(unless package-archive-contents
(package-refresh-contents))
; install the missing packages
(dolist (package package-list)
(unless (package-installed-p package)
(package-install p...
How to say “should_receive” more times in RSpec
...yntax also works. expect(Project).to have_received(:find).exactly(n).times etc.
– David Tuite
Sep 10 '14 at 22:25
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Differences between utf8 and latin1
...ing to store non-Latin characters like Chinese, Japanese, Hebrew, Russian, etc using Latin1 encoding, then they will end up as mojibake. You may find the introductory text of this article useful (and even more if you know a bit Java).
Note that full 4-byte UTF-8 support was only introduced in MySQL...
For loop for HTMLCollection elements
...ou were iterating it will retrieve the items in the list (indexes 0, 1, 2, etc...), but also will retrieve the length and item properties. The for/in iteration simply won't work for an HTMLCollection.
See http://jsfiddle.net/jfriend00/FzZ2H/ for why you can't iterate an HTMLCollection with for/i...
What is N-Tier architecture?
...
It depends on how you count "tiers" (logical, physical, etc), but you can easily have more than 3 process involved to write an app. UI, UI platform (like Eclipse RCP), Web Services, BLL, DAL, Database, Authentication Services, Reporting Services, Analytical Services...
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In Maven 2, how do I know from which dependency comes a transitive dependency?
...re is a graphical version of dependency tree where you can filter by scope etc.
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how to make svn diff show only non-whitespace line changes between two revisions
...cenario and that has to be ignored with:
svn diff -x --ignore-eol-style [etc...]
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What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...ass.newInstance() is strongly discouraged. It's recommended to use Class.getConstructor(), followed by Constructor.newInstance() in turn. It avoids masking possible exceptions.
– L S
Mar 27 '13 at 14:57
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