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Scala vs. Groovy vs. Clojure [closed]
... know each of these compiles to run on the JVM but I'd like a simple comparison between them.
6 Answers
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Meaning of @classmethod and @staticmethod for beginner? [duplicate]
...e1 = cls(day, month, year)
return date1
@staticmethod
def is_date_valid(date_as_string):
day, month, year = map(int, date_as_string.split('-'))
return day <= 31 and month <= 12 and year <= 3999
date2 = Date.from_string('11-09-2012')
is_date = Date.is_date_v...
When and how should I use a ThreadLocal variable?
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One possible (and common) use is when you have some object that is not thread-safe, but you want to avoid synchronizing access to that object (I'm looking at you, SimpleDateFormat). Instead, give each thread its own instance of the object.
For example:
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Non-static variable cannot be referenced from a static context
I've written this test code:
12 Answers
12
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When to use CouchDB over MongoDB and vice versa
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Of C, A & P (Consistency, Availability & Partition tolerance) which 2 are more important to you? Quick reference, the Visual Guide To NoSQL Systems
MongodB : Consistency and Partition Tolerance
CouchDB : Availability and Partition Toler...
What is the performance cost of having a virtual method in a C++ class?
... call.
So, not really worth worrying about the cost unless the function is something like a trivial Get()/Set() accessor, in which anything other than inline is kind of wasteful. A 7ns overhead on a function that inlines to 0.5ns is severe; a 7ns overhead on a function that takes 500ms to execute...
Big-oh vs big-theta [duplicate]
...the occasional big-oh thrown in.
I know mathematically what the difference is between the two, but in English, in what situation would using big-oh when you mean big-theta be incorrect, or vice versa (an example algorithm would be appreciated)?
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jQuery load more data on scroll
... wondering how can i implement more data on scroll only if the div.loading is visible.
9 Answers
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Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
Why is int i = 2147483647 + 1; OK, but byte b = 127 + 1; is not compilable?
4 Answers
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Entity Framework 4 vs NHibernate [closed]
...t Entity Framework first version on the web (also on stackoverflow) and it is clear that it was not a good choice when we already have better alternative like NHibernate. But I can't find a good comparison of Entity Framework 4 and NHibernate. We can say that today NHibernate is the leader among all...