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Calculating arithmetic mean (one type of average) in Python
Is there a built-in or standard library method in Python to calculate the arithmetic mean (one type of average) of a list of numbers?
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Get index of selected option with jQuery
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<script type="text/javascript" src = "http://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
});
function check(){
alert($("#NumberSelector").prop('selectedIndex'));
alert(document.getElem...
What is sandboxing?
...software development, that means you don't need to mess with stuff in /usr/lib to test your library, etc.
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How to fix “ImportError: No module named …” error in Python?
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Example solution for adding the library to your PYTHONPATH.
Add the following line into your ~/.bashrc or just run it directly:
export PYTHONPATH="$PYTHONPATH:$HOME/.python"
Then link your required library into your ~/.python folder, e.g.
ln -s /home/u...
BLE（二）信道&数据包&协议栈格式 - 创客硬件开发 - 清泛IT社区，...
...初衷——物联网。物联网中传输的数据和传统的互联网有什么区别呢？抛开其它不谈，物联网中最重要、最广泛的一类应用是：信息的采集。
这些信息往往都很简单，如温度、湿度、速度、位置信息、电量、水压、等等。
采...
How to call multiple JavaScript functions in onclick event?
...alert("Foo class");
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="foo" id="id">Click</div>
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Alternative for PHP_excel
...sky's Excel extension now on github (xls and xlsx, and requires commercial libXL component)
PHP's COM extension (requires a COM enabled spreadsheet program such as MS Excel or OpenOffice Calc running on the server)
The Open Office alternative to COM (PUNO) (requires Open Office installed on the serv...
How can I know which radio button is selected via jQuery?
...'#myForm').val());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form id="myForm">
<input type="radio" name="radioName" value="1" /> 1 <br />
<input type="radio" name="radioName" value="2" /> 2 <br />...
Is it possible to decompile a compiled .pyc file into a .py file?
...for me some time ago to decompile the .pyc bytecode into .py, whereas unpyclib crashed with an exception.
With all these tools, you get your code back including variable names, but without the comments.
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How to reload page every 5 seconds?
...u do not remove cache
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<p>Auto reload page and clear cache</p>
and you can also use meta for this
<meta http-equiv="Refresh" content="5">
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