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How to use timeit module
...int min(timeit.Timer('a=s[:]; timsort(a)', setup=setup).repeat(7, 1000))
0.334147930145
Note that the series of statements makes a fresh copy of the unsorted data on every pass.
Also, note the timing technique of running the measurement suite seven times and keeping only the best time -- this can...
MongoDB副本集详解 优于以往的主从模式 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...一半，如果已经小于一半了所有节点保持只读状态。
3 搭建副本集集群
每个虚拟机都使用如下的配置文件启动实例:
dbpath =/home/lihuilin/mongodata
smallfiles =true
replSet =mvbox
然后在任意一台虚拟机登陆mongo,输入如下...
Adding code to a javascript function programmatically
... community wiki
5 revs, 5 users 63%user1106925
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How do I write data into CSV format as string (not file)?
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edited Jan 13 '17 at 21:13
TH22
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answe...
Access object child properties using a dot notation string [duplicate]
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13 Answers
13
Active
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How to show SQL queries run in the Rails console?
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Rails 3+
Enter this line in the console:
ActiveRecord::Base.logger = Logger.new(STDOUT)
Rails 2
Enter this line in the console:
ActiveRecord::Base.connection.instance_variable_set :@logger, Logger.new(STDOUT)
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CSS last-child selector: select last-element of specific class, not last child inside of parent?
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235
:last-child only works when the element in question is the last child of the container, not the...
Passing data to a bootstrap modal
...lt;button class="close" data-dismiss="modal">×</button>
<h3>Modal header</h3>
</div>
<div class="modal-body">
<p>some content</p>
<input type="text" name="bookId" id="bookId" value=""/>
</div>
</div>
JAVA...
What is the use of Enumerable.Zip extension method in Linq?
...= new string[] { "A", "B", "C", "D", "E" };
var numbers= new int[] { 1, 2, 3 };
var q = letters.Zip(numbers, (l, n) => l + n.ToString());
foreach (var s in q)
Console.WriteLine(s);
Ouput
A1
B2
C3
share
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Convert UTC to local time in Rails 3
...g trouble converting a UTC Time or TimeWithZone to local time in Rails 3.
6 Answers
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