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How to tell which version of a gem a rails app is using
... This will only work if the gem as been specified in the environment.rb file. If the developer just required it somewhere, rake gems won't work.
– John Hyland
Oct 26 '09 at 19:36
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Eclipse HotKey: how to switch between tabs?
... tabs in browser or window in operating system ( Cmd / Win + Tab ) without file-selection from the list. How to do this easy thing in Eclipse?
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Remove warning messages in PHP
...hp to hide warning message set error_reporting(0) at top of common include file or individual file.
In Wordpress hide Warnings and Notices add following code in wp-config.php file
ini_set('log_errors','On');
ini_set('display_errors','Off');
ini_set('error_reporting', E_ALL );
define('WP_DEBUG', fa...
Can't access RabbitMQ web management interface after fresh install
... I couldn't get guest working even though I sorted out the config file, but Im guessing I didn't have permissions set because once I set up this test account i was away running
– Sweet Chilly Philly
Sep 15 '16 at 22:56
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Conceptually, how does replay work in a game?
... which it created and used to defeat the player. So the exact same replay file resulted in a different winner depending on which version of Starcraft was playing the file.
I always found the concept fascinating. It would seem that the replay feature worked by recording all of the inputs of the pl...
How to determine the current shell I'm working on
...
ps -ef | grep $$ | grep -v grep - this will look for the current process ID in the list of running processes. Since the current process is the shell, it will be included.
This is not 100% reliable, as you might have other processes whose ps listing includes the same number as shell's process ID, ...
Child inside parent with min-height: 100% not inheriting height
...ht can't inherit the height property: https://bugs.webkit.org/show_bug.cgi?id=26559
Apparently Firefox is affected too (can't test in IE at the moment)
Possible workaround:
add position:relative to #containment
add position:absolute to #containment-shadow-left
The bug doesn't show when the in...
Reloading submodules in IPython
...you want to always enable this settings, modify your IPython configuration file ~/.ipython/profile_default/ipython_config.py[1] and appending:
c.InteractiveShellApp.extensions = ['autoreload']
c.InteractiveShellApp.exec_lines = ['%autoreload 2']
Credit to @Kos via a comment below.
[1]
If yo...
How to change the style of the title attribute inside an anchor tag?
...o.png) #f0f0f0 no-repeat 100% 5%;
left: 0px;
margin: 10px;
width: 250px;
position: absolute;
top: 10px;
text-decoration: none
}
<a href="#" class="tip">Link<span>This is the CSS tooltip showing up when you mouse over the link</span></a>
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Reading settings from app.config or web.config in .NET
...at needs to be able to read settings from the web.config or app.config file (depending on whether the DLL is referenced from an ASP.NET web application or a Windows Forms application).
...