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What's a quick way to test to see a file exists?
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Python UTC datetime object's ISO format doesn't include Z (Zulu or Zero offset)
...cts don't have time zone info by default, and without it, Python actually violates the ISO 8601 specification (if no time zone info is given, assumed to be local time). You can use the pytz package to get some default time zones, or directly subclass tzinfo yourself:
from datetime import datetime, ...
How to check if an object is an array?
I'm trying to write a function that either accepts a list of strings, or a single string. If it's a string, then I want to convert it to an array with just the one item so I can loop over it without fear of an error.
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科大讯飞徐景明：从语音交互到人工智能 - 资讯 - 清泛网 - 专注C/C++及内核技术
...机进入亿万家庭；现在一轮的“大波浪”是基于“安卓、IOS+ARM”的大平台，许多应用型创新是“小波浪”创新。
“一个国家如果没有‘大波浪’创新，对整个国家转型升级是不利的。从1~N的创新许多人在做，从0~1的创新...
How do I simulate a low bandwidth, high latency environment?
I need to simulate a low bandwidth, high latency connection to a server in order to emulate the conditions of a VPN at a remote site. The bandwidth and latency should be tweakable so I can discover the best combination in order to run our software package.
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Easy way to see saved NSUserDefaults?
... app in the simulator if you go to:
/users/your user name/Library/Application Support/iPhone Simulator/<Sim Version>/Applications
This directory has a bunch of GUID named directories. If you are working on a few apps there will be a few of them. So you need to find your app binary:
find ....
Download file of any type in Asp.Net MVC using FileResult?
...se FileResult to allow users to download files from my Asp.Net MVC application. But the only examples of this I can find always has to do with image files (specifying content type image/jpeg).
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Is it possible to make an HTML anchor tag not clickable/linkable using CSS?
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I can confirm this works on Ubuntu version of Firefox/Chrome. Wondering if it's going to work on IE on Windows though.
– JohnMerlino
Jul 14 '14 at 5:08
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Undefined symbols for architecture armv7
...resolve:
Add the correct libraries in the Link Binary With Libraries section of the Build Phases.
If you want to add a library outside of the default search path you can include the path in the Library Search Paths value in the Build Settings and add -l{library_name_without_lib_and_suffix} (eg. fo...
Convert String to Float in Swift
...oat(Wage.text) which returns a Float? type. More clear than the below solution which just returns 0.
If you want a 0 value for an invalid Float for some reason you can use Float(Wage.text) ?? 0 which will return 0 if it is not a valid Float.
Old Solution
The best way to handle this is direct ca...