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How can I detect the encoding/codepage of a text file
In our application, we receive text files ( .txt , .csv , etc.) from diverse sources. When reading, these files sometimes contain garbage, because the files where created in a different/unknown codepage.
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What is a loop invariant?
I'm reading "Introduction to Algorithm" by CLRS. In chapter 2, the authors mention "loop invariants". What is a loop invariant?
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Swift Beta performance: sorting arrays
I was implementing an algorithm in Swift Beta and noticed that the performance was very poor. After digging deeper I realized that one of the bottlenecks was something as simple as sorting arrays. The relevant part is here:
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Accessing private member variables from prototype-defined functions
Is there any way to make “private” variables (those defined in the constructor), available to prototype-defined methods?
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Why I am Getting Error 'Channel is unrecoverably broken and will be disposed!'
When I try to launch my AndEngine Activity , I get this error:
19 Answers
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Replacing NAs with latest non-NA value
In a data.frame (or data.table), I would like to "fill forward" NAs with the closest previous non-NA value. A simple example, using vectors (instead of a data.frame ) is the following:
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How do I sort an NSMutableArray with custom objects in it?
What I want to do seems pretty simple, but I can't find any answers on the web. I have an NSMutableArray of objects, and let's say they are 'Person' objects. I want to sort the NSMutableArray by Person.birthDate which is an NSDate .
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How can I detect the touch event of an UIImageView?
I have placed an image (UIImageView) on the navigation bar. Now I want to detect the touch event and want to handle the event. How can I do that?
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Chrome DevTools Devices does not detect device when plugged in
I cannot seem to get the DevTools Devices feature to work on my Samsung Galaxy S4 even after following the steps outlined at https://developers.google.com/chrome-developer-tools/docs/remote-debugging
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How can I convert tabs to spaces in every file of a directory?
How can I convert tabs to spaces in every file of a directory (possibly recursively)?
19 Answers
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