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How Do I Fetch All Old Items on an RSS Feed?
... like this talked about as an extension to the ATOM protocol, but I don't know if it is actually implemented anywhere.
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Why not use Double or Float to represent currency?
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Of course if you know the precision, you can always round the result and thus avoid the whole issue. This is much faster and simpler than using BigDecimal. Another alternative is to use fixed precision int or long.
– Pe...
Why can't enum's constructor access static fields?
...kind of a phantom method (can't see the source in Enum.class) and i don't know when its created
– Chirlo
Oct 13 '12 at 13:51
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When do I need to use AtomicBoolean in Java?
... @Bozho - reads and writes to boolean fields are atomic right?, Now, volatile gives me the latest value of the boolean field. So, effectively, wouldn't volatile boolean be same as AtomicBoolean?.
– TheLostMind
Jul 30 '14 at 14:29
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String.replaceAll single backslashes with double backslashes
...s tools to automatically escape text into target and replacement parts. So now we can focus only on strings, and forget about regex syntax:
replaceAll(Pattern.quote(target), Matcher.quoteReplacement(replacement))
which in our case can look like
replaceAll(Pattern.quote("\\"), Matcher.quoteReplac...
Transpose list of lists
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list(map(list, zip(*l)))
Explanation:
There are two things we need to know to understand what's going on:
The signature of zip: zip(*iterables) This means zip expects an arbitrary number of arguments each of which must be iterable. E.g. zip([1, 2], [3, 4], [5, 6]).
Unpacked argument lists: Giv...
What is a Proxy in Doctrine 2?
...entity from the database (except when you request the ID, which is always known to the proxy).
This happens fully transparent to your application due to the fact that the proxy extends your entity class.
Doctrine will by default hydrate associations as lazy load proxies if you don't JOIN them in y...
What is the standard Python docstring format? [closed]
...ion of what is returned
@raise keyError: raises an exception
"""
- reST
Nowadays, the probably more prevalent format is the reStructuredText (reST) format that is used by Sphinx to generate documentation.
Note: it is used by default in JetBrains PyCharm (type triple quotes after defining a method...
Rails where condition using NOT NIL
...aving, this is just a tiny facet. But of course a general case is good to know.
– Adam Lassek
Jul 26 '11 at 22:26
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Where does the “flatmap that s***” idiomatic expression in Scala come from?
... operation, so it cannot be as widely applied. Also, it requires too much knowledge about the data you are manipulating.
Note: previously I said matching was slower than flatMap -- the opposite is true as a matter of fact, up to the most recent version of Scala at the time of this writing, 2.10.1.)...