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How do I correctly clean up a Python object?
__del__(self) above fails with an AttributeError exception. I understand Python doesn't guarantee the existence of "global variables" (member data in this context?) when __del__() is invoked. If that is the case and this is the reason for the exception, how do I make sure the object destructs...
How can I detect if a browser is blocking a popup?
Occasionally, I've come across a webpage that tries to pop open a new window (for user input, or something important), but the popup blocker prevents this from happening.
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How to delete from a text file, all lines that contain a specific string?
How would I use sed to delete all lines in a text file that contain a specific string?
17 Answers
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Yes or No confirm box using jQuery
I want yes/No alerts using jQuery, instead of ok/Cancel button:
9 Answers
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How to use PyCharm to debug Scrapy projects
I am working on Scrapy 0.20 with Python 2.7. I found PyCharm has a good Python debugger. I want to test my Scrapy spiders using it. Anyone knows how to do that please?
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Xcode 4 says “finished running ” on the targeted device — Nothing happens
The app neither installs nor runs on my device. All provisioning profiles are up to date. I've already tried deleting and re-installing them.
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How to unit test a Node.js module that requires other modules and how to mock the global require fun
This is a trivial example that illustrates the crux of my problem:
8 Answers
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Using a dispatch_once singleton model in Swift
I'm trying to work out an appropriate singleton model for usage in Swift. So far, I've been able to get a non-thread safe model working as:
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Regular expression to match URLs in Java
I use RegexBuddy while working with regular expressions. From its library I copied the regular expression to match URLs. I tested successfully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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How to scale a UIImageView proportionally?
I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width.
17 Answer...