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Begin, Rescue and Ensure in Ruby?
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Yes, ensure ensures that the code is always evaluated. That's why it's called ensure. So, it is equivalent to Java's and C#'s finally.
The general flow of begin/rescue/else/ensure/end looks like this:
begin
# something which might raise an exception
rescue SomeExceptionClass => some_variab...
How to convert index of a pandas dataframe into a column?
...vel) and creates an int index from 0 to len(df)-1
– BallpointBen
Jan 10 '19 at 19:52
2
Assignment...
How do you usually Tag log entries? (android)
I assume most of you are aware of android.util.Log
All logging methods accept 'String tag' as a first argument.
13 Answers
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How to print to console when using Qt
...is good enough to print to stderr, you can use the following streams originally intended for debugging:
#include<QDebug>
//qInfo is qt5.5+ only.
qInfo() << "C++ Style Info Message";
qInfo( "C Style Info Message" );
qDebug() << "C++ Style Debug Message";
qDebug( "C Style Debug Me...
Mockito How to mock only the call of a method of the superclass
...ad of extending a super class the problem is gone.
If however you are not allowed to change the code, but you must test it anyway, and in this awkward way, there is still hope. With some AOP tools (for example AspectJ) you can weave code into the super class method and avoid its execution entirely ...
UIView bottom border?
...nges (device rotation, Auto Layout, etc.) then your CALayer won't automatically adjust itself. You're going to have to set that up yourself. Whereas using drawRect can handle the change automatically.
– Womble
Jul 3 '15 at 4:02
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GitHub README.md center image
...(as rightfully pointed out by @waldyr.ar), and in the GitHub case you may fallback to something like <div style="text-align:center"><img src="..." /></div>. Beware that there's no guarantee the image will be centered if your repository is forked in a different hosting environment (...
Definition of “downstream” and “upstream”
...ry. Information flowed "downstream" to you.
When you make changes, you usually want to send them back "upstream" so they make it into that repository so that everyone pulling from the same source is working with all the same changes. This is mostly a social issue of how everyone can coordinate thei...
How to develop Desktop Apps using HTML/CSS/JavaScript? [closed]
First, I'm not interested in doing this professionally. I am a web developer, a coworker of mine recently left for Spotify and said he will be working mostly in JavaScript for the Spotify Desktop app. He said it uses "Chrome frame" and everything inside is done like a web app (HTML/JS/CSS).
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When should I use mmap for file access?
...rovide at least two ways of accessing files. There's the standard system calls open() , read() , write() , and friends, but there's also the option of using mmap() to map the file into virtual memory.
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