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What is the pythonic way to avoid default parameters that are empty lists?
...rized in "the Hitchhikers Guide to Python" as "Mutable Default Arguments":
http://docs.python-guide.org/en/latest/writing/gotchas/
Quote: "Python’s default arguments are evaluated once when the function is defined, not each time the function is called (like it is in say, Ruby). This means that i...
Enum String Name from Value
...sing IFormatProvider are deprecated. ToString() is fine. See groups.google.com/group/DotNetDevelopment/browse_thread/thread/…
– AndyM
Apr 15 '09 at 9:37
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Wrap long lines in Python [duplicate]
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Adjacent string literals are concatenated at compile time, just as in C. http://docs.python.org/reference/lexical_analysis.html#string-literal-concatenation is a good place to start for more info.
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JavaScript for…in vs for
... edited Dec 12 '11 at 22:46
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111 silver badge
answered Oct 28 '08 at 11:01
AnthonyWJonesAnthon...
At runtime, find all classes in a Java application that extend a base class
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I use org.reflections:
Reflections reflections = new Reflections("com.mycompany");
Set<Class<? extends MyInterface>> classes = reflections.getSubTypesOf(MyInterface.class);
Another example:
public static void main(String[] args) throws IllegalAccessException, Instantiatio...
Split delimited strings in a column and insert as new rows [duplicate]
...the unnest function from Hadley Wickham's tidyr package (see release notes http://blog.rstudio.org/2014/12/08/tidyr-0-2-0/)
> library(tidyr)
> library(dplyr)
> mydf
V1 V2
2 1 a,b,c
3 2 a,c
4 3 b,d
5 4 e,f
6 . .
> mydf %>%
mutate(V2 = strsplit(as.character(...
How to convert an int value to string in Go?
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@luke it comes from the C heritage where the entire machine might have 256K memory; usability was sacrificed to fit more functionality in. The creators of Go are all deeply embedded in that heritage and feel entirely comfortable with...
Stack Overflow：StackExchange网络不同主题网站的”祖父“ - 更多技术 - ...
...。
有趣的是，Quora并非最受欢迎的问答网站，根据Alexa和Compete的统计，由纽约创业家乔尔•斯伯斯基（Joel Spolsky）和杰夫•阿特伍德（Jeff Atwood）建立的StackExchange。
美国著名科技博客SAI今天专访了斯伯斯基，后者一一点评...
Case conventions on element names?
...d to Metro Smurf's answer.
The National Information Exchange Model (NIEM: http://en.wikipedia.org/wiki/National_Information_Exchange_Model) says to use:
Upper CamelCase (PascalCase) for elements.
(lower) camelCase for attributes.
The NIEM makes for a good option when you're looking to conform t...
What are the differences between LDAP and Active Directory?
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