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Node.js get file extension
...d of split() & pop()
Have a look at the performance differences here: http://jsperf.com/remove-first-character-from-string
// returns: 'html'
var path = require('path');
path.extname('index.html').substr(1);
Update August 2019
As pointed out by @xentek in the comments; substr() is now cons...
Force IE compatibility mode off using tags
...
There is the "edge" mode.
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>My Web Page</title>
</head>
<body>
<p>Content goes here.</p>
</body>
</html>
From the linked M...
Elastic Search: how to see the indexed data
...rch is already running on your local machine), open a browser window to:
http://localhost:9200/_plugin/head/
Alternatively, you can just use curl from the command line, eg:
Check the mapping for an index:
curl -XGET 'http://127.0.0.1:9200/my_index/_mapping?pretty=1'
Get some sample docs:...
Timer function to provide time in nano seconds using C++
...ontroversy on the efficacy of QPC under certain circumstances as stated in http://msdn.microsoft.com/en-us/library/windows/desktop/ee417693(v=vs.85).aspx
...While QueryPerformanceCounter and QueryPerformanceFrequency typically adjust for
multiple processors, bugs in the BIOS or drivers may res...
App Inventor 2 Web客户端（Web）详细用法示例 · App Inventor 2 中文网
...在目录执行：
python3 upload-server.py
终端显示 上传网址：http://本机局域网IP:8768/upload。
中途验证：电脑浏览器打开 http://127.0.0.1:8768/，看到 {"uploads": []}。
第 2 步：确认手机连得到电脑
查电脑的局域网 IP（Windows 运行 ipconfig...
How to limit the amount of concurrent async I/O operations?
...quests. Is there an easy way to limit the concurrent amount of these async http requests? So that no more than 20 web pages are downloaded at any given time. How to do it in the most efficient manner?
...
Download the Android SDK components for offline install
... find all the list of xml files where packages are available
Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
Fetched Add-ons List successfully
Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Validate XML: https://dl-ssl.google.com/androi...
Image Greyscale with CSS & re-color on mouse-over?
...e)
img.grayscale {
filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#...
Implementing slicing in __getitem__
...ake one parameter, which can either be a number, or a slice object.
See:
http://docs.python.org/library/functions.html#slice
http://docs.python.org/reference/datamodel.html#object.__getitem__
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How to add http:// if it doesn't exist in the URL?
How can I add http:// to a URL if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )?
8 Answe...