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Struct like objects in Java
...ever. Other JVM languages like Groovy, Scala, etc do support this feature now. - Alex Miller
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Create new tmux session from inside a tmux session
... Wed Jan 13 11:31:38 2016) [204x54]
New session from within tmux
We are now inside or better known as attached to our target session. If we try to create a new session while attached it will result in a nesting error.
$ tmux new -s bar
> sessions should be nested with care, unset $TMUX to fo...
Rails.env vs RAILS_ENV
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ENV['RAILS_ENV'] is now deprecated.
You should use Rails.env which is clearly much nicer.
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Change MySQL default character set to UTF-8 in my.cnf?
...utf8
If you want to change the character set for an existing DB, let me know... your question didn't specify it directly so I am not sure if that's what you want to do.
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IN vs OR in the SQL WHERE Clause
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I assume you want to know the performance difference between the following:
WHERE foo IN ('a', 'b', 'c')
WHERE foo = 'a' OR foo = 'b' OR foo = 'c'
According to the manual for MySQL if the values are constant IN sorts the list and then uses a bi...
What is the advantage of using abstract classes instead of traits?
... performance overhead.
However, you should make this choice only if you know that the trait
in question constitutes a performance bottleneck and have evidence
that using a class instead actually solves the problem.
If you still do not know, after considering the above, then start by
mak...
Pip install Matplotlib error with virtualenv
...le
sudo apt-get install pkg-config
will shore up the include paths for now.
After this installation proceeds smoothly.
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Why can't the tag contain a tag inside it?
As far as I know, this is right:
5 Answers
5
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Maintain aspect ratio of div but fill screen width and height in CSS?
...de by a percentage is CSS, this is not possible without JavaScript (to my knowledge).
I've written a working script that will keep the desired aspect ratio.
HTML
<div id="aspectRatio"></div>
CSS
body { width: 100%; height: 100%; padding: 0; margin: 0; }
#aspectRatio { background: #...
JUnit vs TestNG [closed]
... tests being written but I have been keeping an eye on TestNG for a while now. What experiences have you all had with either JUnit 4 or TestNG, and which seems to work better for very large numbers of tests? Having flexibility in writing tests is also important to us since our functional tests cove...