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What's the difference between “groups” and “captures” in .NET regular expressions?
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127
You won't be the first who's fuzzy about it. Here's what the famous Jeffrey Friedl has to say ab...
How can I setup & run PhantomJS on Ubuntu?
...re
sudo wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo tar xjf phantomjs-1.9.7-linux-x86_64.tar.bz2
sudo ln -s /usr/local/share/phantomjs-1.9.7-linux-x86_64/bin/phantomjs /usr/local/share/phantomjs
sudo ln -s /usr/local/share/phantomjs-1.9.7-linux-x86_...
Understanding NSRunLoop
...eading/RunLoopManagement/RunLoopManagement.html#//apple_ref/doc/uid/10000057i-CH16-SW1
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Mysql order by specific ID values
...u can use ORDER BY and FIELD function.
See http://lists.mysql.com/mysql/209784
SELECT * FROM table ORDER BY FIELD(ID,1,5,4,3)
It uses Field() function, Which "Returns the index (position) of str in the str1, str2, str3, ... list. Returns 0 if str is not found" according to the documentation. So a...
Relative frequencies / proportions with dplyr
...t;%
mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vignette:
When you group by multiple variables, each summary peels off one level of the grouping. That makes it easy to p...
List of Delphi language features and version in which they were introduced/deprecated
...s new in Delphi and C++Builder XE8
What's New in Delphi and C++Builder XE7
What's New in Delphi and C++Builder XE6
What's New in Delphi and C++Builder XE5
What's New in Delphi and C++Builder XE4
What's New in Delphi and C++Builder XE3
What's New in Delphi and C++Builder XE2
What's New ...
What is the correct JSON content type?
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10478
For JSON text:
application/json
The MIME media type for JSON text is application/json. The def...
Application auto build versioning
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answered Jul 6 '12 at 3:57
axwaxw
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When to use std::forward to forward arguments?
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Kerrek SBKerrek SB
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...0) for each insert.
– MrSmith42
Oct 7 '13 at 15:10
8
@RonTeller You can't binary search a linked ...