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Disable a method in a ViewSet, django-rest-framework
...his answer was helpful, you will like my series of posts on DRF at https://www.agiliq.com/blog/2019/04/drf-polls/.
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通信连接组件 · App Inventor 2 中文网
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打开浏览器到指定的网页。 假设您要访问的页面是“www.fun123.cn”（您可以随意替换自己的选择），将属性设置为：
Action: android.intent.action.VIEW
DataUri: http://www.fun123.cn
调用第三方地图也可以使用这个启动器：...
Is it OK to use == on enums in Java?
... for any two enums that are the same, == will be true.
Reference:
http://www.ajaxonomy.com/2007/java/making-the-most-of-java-50-enum-tricks
(couldn't find anything in the Sun docs)
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What should I do when 'svn cleanup' fails?
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Take a look at
http://www.anujvarma.com/svn-cleanup-failedprevious-operation-has-not-finished-run-cleanup-if-it-was-interrupted/
Summary of fix from above link (Thanks to Anuj Varma)
Install sqlite command-line shell (sqlite-tools-win32)...
How do you configure Django for simple development and deployment?
...ther parts I have things like:
if LIVEHOST:
DEBUG = False
PREPEND_WWW = True
MEDIA_URL = 'http://static1.grsites.com/'
else:
DEBUG = True
PREPEND_WWW = False
MEDIA_URL = 'http://localhost:8000/static/'
and so on. A little bit less readable, but it works fine and saves havi...
How to use HTML Agility pack
...I had no trouble using it with help from this XPath documentation: https://www.w3schools.com/xml/xpath_syntax.asp
To parse
<h2>
<a href="">Jack</a>
</h2>
<ul>
<li class="tel">
<a href="">81 75 53 60</a>
</li>
</ul>
<h2>
...
How to write a simple database engine [closed]
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I would suggest focusing on www.sqlite.org
It's recent, small (source code 1MB), open source (so you can figure it out for yourself)...
Books have been written about how it is implemented:
http://www.sqlite.org/books.html
It runs on a variety of ope...
How to draw polygons on an HTML5 canvas?
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from http://www.scienceprimer.com/drawing-regular-polygons-javascript-canvas:
The following code will draw a hexagon. Change the number of sides to create different regular polygons.
var ctx = document.getElementById('hexagon').get...
Convert light frequency to RGB?
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Here's a detailed explanation of the entire conversion process: http://www.fourmilab.ch/documents/specrend/. Source code included!
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Face recognition Library [closed]
...assification. You can see a HTML version of the documentation at:
http://www.bytefish.de/dev/libfacerec/
If you want to understand how those algorithms work, you might want to read my Guide To Face Recognition (includes Python and GNU Octave/MATLAB examples):
http://www.bytefish.de/blog/face_r...