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How to manage REST API versioning with spring?
I've been searching how to manage a REST API versions using Spring 3.2.x, but I haven't find anything that is easy to maintain. I'll explain first the problem I have, and then a solution... but I do wonder if I'm re-inventing the wheel here.
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How to pick just one item from a generator?
... generator using
g = myfunct()
Everytime you would like an item, use
next(g)
(or g.next() in Python 2.5 or below).
If the generator exits, it will raise StopIteration. You can either catch this exception if necessary, or use the default argument to next():
next(g, default_value)
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How do I match any character across multiple lines in a regular expression?
For example, this regex
24 Answers
24
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Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
...lem is that when you have a macro replacement, the preprocessor will only expand the macros recursively if neither the stringizing operator # nor the token-pasting operator ## are applied to it. So, you have to use some extra layers of indirection, you can use the token-pasting operator with a recu...
Python Dictionary Comprehension
...nsion, they create a new dictionary; you can't use them to add keys to an existing dictionary. Also, you have to specify the keys and values, although of course you can specify a dummy value if you like.
>>> d = {n: n**2 for n in range(5)}
>>> print d
{0: 0, 1: 1, 2: 4, 3: 9, 4: ...
PHP - concatenate or directly insert variables in string
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Between those two syntaxes, you should really choose the one you prefer :-)
Personally, I would go with your second solution in such a case (Variable interpolation), which I find easier to both write and read.
The result will be the same; and eve...
Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
... in a way that is visible through the public interface, like your locking example. Another example would be a class that computes a value the first time it is requested, and caches the result.
Since c++11 mutable can be used on a lambda to denote that things captured by value are modifiable (they...
When is memoization automatic in GHC Haskell?
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GHC does not memoize functions.
It does, however, compute any given expression in the code at most once per time that its surrounding lambda-expression is entered, or at most once ever if it is at top level. Determining where the lambda-expressions are can be a little tricky when you use synt...
Overriding fields or properties in subclasses
...n 1 is polymorphic.
Fields by themselves cannot be overridden. Which is exactly why Option 2 returns the new keyword warning.
The solution to the warning is not to append the “new” keyword, but to implement Option 1.
If you need your field to be polymorphic you need to wrap it in a Proper...
How can I find the length of a number?
...
var x = 1234567;
x.toString().length;
This process will also work forFloat Number and for Exponential number also.
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