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Can I run multiple programs in a Docker container?
...b app. I'd like to give Docker a try but I'm not sure how I'm meant to use more than one program. The documentations says there can only be only ENTRYPOINT so how can I have Mongo and my flask application. Or do they need to be in separate containers, in which case how do they talk to each other and...
WebSockets vs. Server-Sent events/EventSource
...one with SSE can also be done with Websockets, Websockets is getting a lot more attention and love, and many more browsers support Websockets than SSE.
However, it can be overkill for some types of application, and the backend could be easier to implement with a protocol such as SSE.
Furthermore ...
Apply multiple functions to multiple groupby columns
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classical inheritance vs prototypal inheritance in javascript
...d bike and the Harley Davidson are all abstractions. However the bike is a more general abstraction of the mud bike and the Harley Davidson (i.e. both the mud bike and the Harley Davidson are specific types of bikes).
Generalization: An abstraction of a more specific abstraction.
In object-oriente...
Dynamically generating a QR code with PHP [closed]
...QR code, and
the choe is the (optional) encoding.
The link, above, gives more detail, but to use it just have the src of an image point to the manipulated value, like so:
<img src="https://chart.googleapis.com/chart?chs=300x300&cht=qr&chl=http%3A%2F%2Fwww.google.com%2F&choe=UTF-8" ...
Is there something like RStudio for Python? [closed]
...e app not a browser tool) for Windows, Mac & Linux in 2016. It's a lot more stable than it was and has lots of new features like syntax highlighting and integrated tutorials. Definitely worth checking out if you like RStudio!
– Elise Breda
Oct 11 '16 at 21:...
What methods of ‘clearfix’ can I use?
...ed elements to hang outside the bounds of the container, at the expense of more tricky CSS.
This solution is quite old, but you can learn all about Easy Clearing on Position Is Everything: http://www.positioniseverything.net/easyclearing.html
Element using "clear" property
The quick and dirty s...
Finding what branch a Git commit came from
...; with any luck, you fetched the branch it was committed to. This is a bit more complex, because you can't walk both the commit tree and reflogs simultaneously. You'd want to parse the reflog output, examining each hash to see if it contains the desired commit or not.
Find a subsequent merge commit...
Learning Ruby on Rails
As it stands now, I'm a Java and C# developer. The more and more I look at Ruby on Rails, the more I really want to learn it.
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Java: is there a map function?
...a 8, there is actually a map function, so I'd probably write the code in a more concise way:
Collection<String> hex = input.stream()
.map(Integer::toHexString)
.collect(Collectors::toList);
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