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Calculate the median of a billion numbers
...sort. Nothing fancy really.
This surely is an interesting task for larger sets of numbers. I just want to make a point here: one billion is peanuts. So think twice before you start throwing complex solutions at surprisingly simple tasks ;)
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Check if object is file-like in Python
File-like objects are objects in Python that behave like a real file, e.g. have a read() and a write method(), but have a different implementation. It is and realization of the Duck Typing concept.
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Method overloading in Objective-C?
... editor after snippets, if snippets enabled
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c++ Timer使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...方法，均提供实例参考。窗口应用程序使用Timer：
#define TIMER_ID 1000 //定时器ID，可任意。触发后回调函数中用于区别不同的定时器以执行不同的任务
SetTimer(TIMER_ID, 1000 , NULL); //启动定时器，1秒后触发
KillTimer(TIMER_ID); //取消...
python pandas dataframe to dictionary
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See the docs for to_dict. You can use it like this:
df.set_index('id').to_dict()
And if you have only one column, to avoid the column name is also a level in the dict (actually, in this case you use the Series.to_dict()):
df.set_index('id')['value'].to_dict()
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Adding n hours to a date in Java?
...k.
Calendar cal = Calendar.getInstance(); // creates calendar
cal.setTime(new Date()); // sets calendar time/date
cal.add(Calendar.HOUR_OF_DAY, 1); // adds one hour
cal.getTime(); // returns new date object, one hour in the future
Check API for more.
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WPF Textblock, linebreak in Text attribute
... need the "&amp;" as mentioned though. This method will also work when setting the text like so: <Setter Property="Text" Value="Line 1&#10;&#10;Line 2" />
– EdwardM
Jun 25 '18 at 17:24
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How to implement custom JsonConverter in JSON.NET to deserialize a List of base class objects?
.... This just encapsulates the process of copying over individual JsonReader settings. Ideally this function would be maintained in the Newtonsoft library itself, but for now, you can use the following:
/// <summary>Creates a new reader for the specified jObject by copying the settings
/// from...
How to use HTML to print header and footer on every printed page of a document?
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If you take the element that you want to be the footer and set it to be position:fixed and bottom:0, when the page prints it will repeat that element at the bottom of each printed page. The same would work for a header element, just set top:0 instead.
For example:
<div class="d...
How can I automatically deploy my app after a git push ( GitHub and node.js)?
...oyment (assuming you're using a git remote repository on that machine).
Setup Your Post-Receive Hook
In your repository: sudo vi hooks/post-receive
And it should look something like:
#!/bin/sh
GIT_WORK_TREE=/home/path/to/your/www
export GIT_WORK_TREE
git checkout -f
Set file permissions: chm...