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What's the difference between using CGFloat and float?
...Double
#endif
*Specifically, longs and pointers, hence the LP. See also: http://www.unix.org/version2/whatsnew/lp64_wp.html
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Configure Flask dev server to be visible across the network
...'m not sure if this is Flask specific, but when I run an app in dev mode ( http://localhost:5000 ), I cannot access it from other machines on the network (with http://[dev-host-ip]:5000 ). With Rails in dev mode, for example, it works fine. I couldn't find any docs regarding the Flask dev server co...
Check if OneToOneField is None in Django
...is behavior was actually corrected in Python 3.2 per the following ticket: http://bugs.python.org/issue9666. Furthermore — and at the risk of sounding opinionated — I believe the above try / except construct is more representative of how Django works, while using hasattr can cloud the issue for ...
App Inventor 2 云数据库配置教程 - Firebase/云数据库1/自建后台 · App Inventor 2 中文网
...户登录注册系统
五、Web组件 —— 通用HTTP数据交互
5.1 发送GET请求
5.2 发送POST请求
5.3 PHP后台接收示例
5.4 Node.js 与 Python 接收示例
Node.js 对应实现
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Open a URL in a new tab (and not a new window)
...ick="openInNewTab('www.test.com');">Something To Click On</div>
http://www.tutsplanet.com/open-url-new-tab-using-javascript/
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Polymorphism in C++
...eaning is more inclusive, as per C++ creator Bjarne Stroustrup's glossary (http://www.stroustrup.com/glossary.html):
polymorphism - providing a single interface to entities of different types. Virtual functions provide dynamic (run-time) polymorphism through an interface provided by a base class...
What are naming conventions for MongoDB?
... in the following example:
use myDB
use myNewDB
Content from: https://docs.mongodb.com/manual/core/databases-and-collections/#databases
COLLECTIONS
Lowercase names: avoids case sensitivity issues, MongoDB collection names are case sensitive.
Plural: more obvious to label a col...
PyLint, PyChecker or PyFlakes? [closed]
...ons in PEP 8.
It is now super easy to check your code against pep8.
See http://pypi.python.org/pypi/pep8
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How do I unit test web api action method when it returns IHttpActionResult?
...s just a helper for the type OkResult which sets the response status to be HttpStatusCode.Ok...so you can just check if the instance of your action result is an OkResult...some examples(written in XUnit):
// if your action returns: NotFound()
IHttpActionResult actionResult = valuesController.Get(10...
How do I create an abstract base class in JavaScript?
...sugar over JavaScript's existing prototype-based inheritance.
Reference: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes
First of all, we define our abstract class. This class can't be instantiated, but can be extended.
We can also define functions that must be implement...