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“Least Astonishment” and the Mutable Default Argument
...
Actually, this is not a design flaw, and it is not because of internals, or performance.
It comes simply from the fact that functions in Python are first-class objects, and not only a piece of code.
As soon as you get to think i...
Which is better, number(x) or parseFloat(x)?
..., I find Number to be more reasonable, so I almost always use Number personally (and you'll find that a lot of the internal JavaScript functions use Number as well). If someone types '1x' I prefer to show an error rather than treat it as if they had typed '1'. The only time I really make an exceptio...
How do I convert an array object to a string in PowerShell?
...
$a = 'This', 'Is', 'a', 'cat'
Using double quotes (and optionally use the separator $ofs)
# This Is a cat
"$a"
# This-Is-a-cat
$ofs = '-' # after this all casts work this way until $ofs changes!
"$a"
Using operator join
# This-Is-a-cat
$a -join '-'
# ThisIsacat
-join $a
Using c...
Nginx not picking up site in sites-enabled?
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I had the same problem. It was because I had accidentally used a relative path with the symbolic link.
Are you sure you used full paths, e.g.:
ln -s /etc/nginx/sites-available/example.com.conf /etc/nginx/sites-enabled/example.com.conf
...
make div's height expand with its content
...date the answer with a modern alternative using a new layout mode in CSS3 called Flexible boxes or Flexbox:
body {
margin: 0;
}
.flex-container {
display: flex;
flex-direction: column;
min-height: 100vh;
}
header {
background-color: #3F51B5;
color: #fff;
}
section...
Download single files from GitHub
...does not support downloading parts of the repository. You have to download all of it. But you should be able to do this with GitHub.
When you view a file it has a link to the "raw" version. The URL is constructed like so
https://raw.githubusercontent.com/user/repository/branch/filename
By fillin...
When annotating a class with @Component, does this mean it is a Spring Bean and Singleton?
...base-package="com.yourcompany" />
About singletons - spring beans are all in singleton scope by default. The only thing you have to have in mind is that you should not store state in field variables (they should only hold dependencies). Thus your application will be thread-safe, and you won't r...
How do I concatenate two arrays in C#?
...ays. It seems the only functional purpose for using arrays is for Interop calls (Unmanaged C++).
– Levi Fuller
Oct 26 '15 at 22:40
1
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How do I debug Node.js applications?
...er supporting WebSocket. Breakpoints, profiler, livecoding, etc... It is really awesome.
Install it with:
npm install -g node-inspector
Then run:
node-debug app.js
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How to generate string of a certain length to insert into a file to meet a file size criteria?
...file size. I have a windows application written in C# which will automatically generate the files. I know the size of each file, ex. 100KB, and how many files to generate. What I need help with is how to generate a string less than or equal to the required file size.
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