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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" ...
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...
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...
Unique ways to use the Null Coalescing operator [closed]
...one call. This is really powerful when you have a method that needs two or more such substitutions!
– David A. Gray
Feb 28 '17 at 2:30
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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...
Apply multiple functions to multiple groupby columns
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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...
What is the “-->” operator in C++?
...enced by the fact the question was asked in the first place. It makes much more sense to textually bind operators to the thing they're operating on rather than something unrelated, so while (x-- > 0) would be more apt. It also makes it more obvious what's going on (at least in a fixed-font editor...
Find Java classes implementing an interface [duplicate]
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Awhile ago, I put together a package for doing what you want, and more. (I needed it for a utility I was writing). It uses the ASM library. You can use reflection, but ASM turned out to perform better.
I put my package in an open source library I have on my web site. The library is here: h...
NoSQL Use Case Scenarios or WHEN to use NoSQL [closed]
...e for data loss.
It's often very easy to scale out NoSQL solutions. Adding more nodes to replicate data to is one way to a) offer more scalability and b) offer more protection against data loss if one node goes down. But again, depends on the NoSQL DB/configuration. NoSQL does not necessarily mean "...