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Stripping everything but alphanumeric chars from a string in Python
...intable (part of the built-in string module). The use of compiled '[\W_]+' and pattern.sub('', str) was found to be fastest.
$ python -m timeit -s \
"import string" \
"''.join(ch for ch in string.printable if ch.isalnum())"
10000 loops, best of 3: 57.6 usec per loop
$ python -m timeit -...
How do I disable the 'Debug / Close Application' dialog on Windows Vista?
When an application crashes on Windows and a debugger such as Visual Studio is installed the following modal dialog appears:
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Can Objective-C switch on NSString?
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Unfortunately they cannot. This is one of the best and most sought after utilizations of switch statements, so hopefully they hop on the (now) Java (and others) bandwagon!
If you are doing card names, perhaps assign each card object an integer value and switch on that. Or pe...
How Do I Take a Screen Shot of a UIView?
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it solved my problem. I was using the old version and it was giving me loads of errors! Thanks a million
– apinho
Oct 20 '15 at 9:54
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UITapGestureRecognizer breaks UITableView didSelectRowAtIndexPath
...ecognizer docs.
The solution was to implement UIGestureRecognizerDelegate and add the following:
////////////////////////////////////////////////////////////
// UIGestureRecognizerDelegate methods
#pragma mark UIGestureRecognizerDelegate methods
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)g...
Detect application heap size in Android
...w do you programmatically detect the application heap size available to an Android app?
9 Answers
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Testing web application on Mac/Safari when I don't own a Mac
...ntly when a web site I launched displayed perfectly on IE, Firefox, Chrome and Safari on Windows but was corrupted when viewed using Safari on the Mac (by a potential customer), I need to start testing how my sites look when viewed on a Mac.
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How to filter git diff based on file extensions?
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Yes, if you ensure that git expands a glob rather than your shell then it will match at any level so something like this (quotes are important) should work fine.
git diff -- '*.c' '*.h'
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Camera 扩展：相机拍照和录像，程序控制拍照、自动拍照实现，而无需点击系...
.../community.appinventor.mit.edu/t/camera-displays-the-camera-to-take-photos-and-record-videos-in-an-arrangement/154998
发布日期：2025年9月4日
文档最后更新：2025年11月17日
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How can I fill a div with an image while keeping it proportional?
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If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you.
.fill {
display: flex;
justify-content: center;
align-it...