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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
...he commands, but afaik sudo isn't always appropriate (like when using rvm, etc.). People can add it in as needed.
– Gary S. Weaver
Jul 15 '11 at 14:13
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How to comment lines in rails html.erb files? [duplicate]
...in any mixed language Rails View file, e.g, *.html.erb, *.js.erb, *.rhtml, etc.
This should also work with STD OUT/printing code, e.g. <%#= f.label :title %>
DETAILS:
Rather than use rails brackets on each line and commenting in front of each starting bracket as we usually do like this:
&l...
PHP parse/syntax errors; and how to solve them
...yond the scope of this question (debugger, database connector, uml diagram etc.) IDE will save you time and will prevent more than just syntax errors.
– Louis Loudog Trottier
Mar 27 '17 at 4:48
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Xcode 4: How do you view the console?
... of the search bar that is in the same ribbon as the step over, step into, etc.
– Alex Barker
Apr 4 '13 at 20:49
Had t...
Virtualbox “port forward” from Guest to Host [closed]
...nied" without explanation in /var/log/auth.log despite LogLevel DEBUG3 in /etc/ssh/sshd_config
– V-R
Aug 26 '16 at 14:57
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New to MongoDB Can not run command mongo
... if you start mongo with service mongodb start it automatically reads the /etc/mongod.conf file and you don't need to specify your --dbpath or --config variables each time you start! This definitely works for the 10gen install but I'm not sure about others as I haven't tried them.
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How to get only time from date-time C# [closed]
...early. I had a colleague who converted everything to string - even doubles etc. It's an accident waiting to happen. I would say don't convert objects to strings until you want to display the object to a human. Until then stick with the objects.
– paul
Dec 18 '1...
If isset $_POST
...d the ! operator in cases like this (easier to read, less chance of error, etc.) and reverse the logic... if (empty()) {/* No */} else {/* Yes */}
– MrWhite
Aug 1 '14 at 10:58
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MySQL selecting yesterday's date
...early none of them outside of MySQL and its descendants (MariaDB, Percona, etc) will implement MySQL-specific syntax.
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...t just eats up bytes for no reason and potentially increases cache misses, etc.
The noise it makes pretty much makes timing micro-optimizations
impossible.
How can I make sure that such accidental lucky / unlucky alignments
are not interfering when I do micro-optimizations (unrelated to...