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Python's equivalent of && (logical-and) in an if-statement
...lt, then the second operator isn't evaluated at all.
To show this I use a function that simply takes a value, prints it and returns it again. This is handy to see what is actually
evaluated because of the print statements:
>>> def print_and_return(value):
... print(value)
... retu...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...#include <vector>
#include "boost/lambda/lambda.hpp"
#include "boost/function.hpp"
Course::Course( unsigned int num, unsigned int hour, std::string name ) :
course_num(num),
course_hour(hour),
course_name(name)
{
}
Student::Student( unsigned int num, const std:...
What are all the uses of an underscore in Scala?
...s
List(1, 2, 3) foreach println _
Converting call-by-name parameters to functions
def toFunction(callByName: => Int): () => Int = callByName _
Default initializer
var x: String = _ // unloved syntax may be eliminated
There may be others I have forgotten!
Example showing why foo(_...
Maven artifact and groupId naming
.... These are alright, but for those strange domain like xxx.tv, xxx.uk, xxx.cn, it does not make sense to name the groupId started with "tv.","cn.", the groupId should deliver the basic information of the project rather than the domain.
...
搭建高可用mongodb集群(一)——配置mongodb - 大数据 & AI - 清泛网 - 专...
...
参考:
NoSQL开篇——为什么要使用NoSQL http://www.infoq.com/cn/news/2011/01/nosql-why/
mongodb手册 http://cn.docs.mongodb.org/manual/single/
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mongodb集群
Permutations in JavaScript?
I'm trying to write a function that does the following:
35 Answers
35
...
Uncatchable ChuckNorrisException
... to throw it. It's easy to create an exception that you can't throw: class cn extends exception{private cn(){}}
– John Dvorak
Dec 18 '12 at 20:55
...
Best practice for partial updates in a RESTful service
...would I construct an URI if I want the system to send an email to customer 123? Something like a pure RPC method call that doesn't change the state of the object at all. What is the RESTful way of doing this?
– magiconair
Mar 14 '10 at 20:08
...
How can you list the matches of Vim's search?
... " F6 will find the previous occurrence after vimgrep
map <F6> :cn!<CR>
" F8 search for word under the cursor recursively , :copen , to close -> :ccl
nnoremap <F8> :grep! "\<<cword>\>" . -r<CR>:copen 33<CR>
" omit a dir from all searche...
Determine when a ViewPager changes pages
...geListener(object : ViewPager.OnPageChangeListener {
override fun onPageScrollStateChanged(state: Int) {
}
override fun onPageScrolled(position: Int, positionOffset: Float, positionOffsetPixels: Int) {
}
override fun onPageSelected(posi...
