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Django - How to rename a model field using South?
...y derives the name of the database table from the name of your model class and the app that contains it. A model's database table name is constructed by joining the model's "app label" -- the name you used in manage.py startapp -- to the model's class name, with an underscore between them.
In the ...
Where is Vagrant saving changes to the VM?
I am just starting with Vagrant and I am having a little trouble understanding a few details. I have read through the docs but still am missing a basic concept. When I want to start a Vagrant box I run:
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Pacman: how do the eyes find their way back to the monster hole?
...ing algorithm - breadth-first search is simple to implement, for example - and use that to calculate which directions to encode at each of the corners, before the game is run.
EDIT (11th August 2010): I was just referred to a very detailed page on the Pacman system: The Pac-Man Dossier, and since I...
How can I pass data from Flask to JavaScript in a template?
...t;
</body>
</html>
You can also use for loops, if statements and many more, see the Jinja2 documentation for more.
Also, have a look at Ford's answer who points out the tojson filter which is an addition to Jinja2's standard set of filters.
Edit Nov 2018: tojson is now included in ...
“render :nothing => true” returns empty plaintext file?
I'm on Rails 2.3.3, and I need to make a link that sends a post request.
2 Answers
2
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Simplest code for array intersection in javascript
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Use a combination of Array.prototype.filter and Array.prototype.includes:
array1.filter(value => array2.includes(value))
For older browsers, with Array.prototype.indexOf and without an arrow function:
array1.filter(function(n) {
return array2.indexOf(n) !== ...
Convert NSNumber to int in Objective-C
...mplicit conversion is now disallowed with ARC.
– Alexander
Nov 21 '17 at 12:52
basically [key intValue] (key is NSNumb...
What is the difference between `-fpic` and `-fPIC` gcc parameters?
I've already read the gcc manpage, but I still can't understand the difference between -fpic and -fPIC . Can someone explain it, in a very simple and clear way?
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slashes in url variables
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This is the standard URL encoding.
– SLaks
Jun 7 '10 at 19:03
44
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我帮儿子用App Inventor 2给遥控车装了"蓝牙大脑"，手机一划车就...
...y, 当前x, 当前y, 触控点id)
执行 如果 当前位置_半径 > 50
则 将Ball限制在圆内
否则 将Ball位置设为(当前x, 当前y)
第三步：指令编码
我自定义了一个简单的通信协议...