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Non-CRUD operations in a RESTful service
...ually, REST is not about exposing your database tables as CRUD operations. From logical point of view you are creating an order (purchase), but the server side is free to do as many processing steps as it wants.
You can even abuse HTTP protocol even further. Use Location header to return a link to ...
Mean per group in a data.frame [duplicate]
... split(matrix$value, matrix$hour) that correspond to those that return NaN from your aggregate (i.e. split(matrix$value, matrix$hour)[is.nan(aggregate(as.numeric(matrix$value), list(matrix$hour), mean)[, 2])])
– jbaums
May 11 '15 at 23:25
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Font scaling based on width of container
...ve been had the "width" of the original 50% container been reduced by half from viewport sizing, but has now been reduced due to a change in its own percentage calculation.
A Challenge
With the CSS3 calc() function in use, it would become difficult to adjust dynamically, as that function does not wo...
What is the ellipsis (…) for in this method signature?
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The three dot (...) notation is actually borrowed from mathematics, and it means "...and so on".
As for its use in Java, it stands for varargs, meaning that any number of arguments can be added to the method call. The only limitations are that the varargs must be at the end...
Convert a RGB Color Value to a Hexadecimal String
... an adapted version of the answer given by Vivien Barousse with the update from Vulcan applied. In this example I use sliders to dynamically retreive the RGB values from three sliders and display that color in a rectangle. Then in method toHex() I use the values to create a color and display the res...
Is there a PHP function that can escape regex patterns before they are applied?
...he importance of the $delimiter argument, the description of that argument from the docs, a clarification for the confused about exactly what it means, and a heavily commented example showing preg_quote being used in the simplest case I could come up with where it's actually being used to programati...
What is the __DynamicallyInvokable attribute for?
...thout further hints what a "blessed API" might mean. Although it is clear from the context that this will only work on types in the framework itself. There ought to be additional code somewhere that checks the attribute applied to types and methods. No idea where that is located, but given that i...
Intellij IDEA generate for-each/for keyboard shortcut
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Create for loop from an existing list statement:
Highlight the list
Cmd+Alt+J or Ctrl+Alt+J
Choose Iterate Iterable from the dropdown (i)
https://www.jetbrains.com/phpstorm/help/creating-code-constructs-using-surround-templates.html
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Understanding checked vs unchecked exceptions in Java
...er the situation like this? Can I?
It could've been. But nothing stops you from catching the unchecked exception as well
Why do people add class Exception in the throws clause?
Most often because people are lazy to consider what to catch and what to rethrow. Throwing Exception is a bad practice and ...
Append values to query string
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As you can see from my example you could use variable names for the parameters. And that's exactly what it does: it appends 2 parameters to the existing url that I have hardcoded here but they could perfectly fine be dynamic.
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