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Long press gesture on UICollectionViewCell

I was wondering how to add a long press gesture recognizer to a (subclass of) UICollectionView. I read in the documentation that it is added by default, but I can't figure out how. ...
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iPhone UITextField - Change placeholder text color

I'd like to change the color of the placeholder text I set in my UITextField controls, to make it black. 32 Answers ...
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Custom exception type

Can I define custom types for user-defined exceptions in JavaScript? If so, how would I do it? 13 Answers ...
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How do I create a file and write to it in Java?

What's the simplest way to create and write to a (text) file in Java? 33 Answers 33 ...
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Repository Pattern vs DAL

Are they the same thing? Just finished to watch Rob Connery's Storefront tutorial and they seem to be similar techinques. I mean, when I implement a DAL object I have the GetStuff, Add/Delete etc methods and I always write the interface first so that I can switch db later. ...
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Favorite Django Tips & Features?

Inspired by the question series 'Hidden features of ...', I am curious to hear about your favorite Django tips or lesser known but useful features you know of. ...
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How to check that a string is a palindrome using regular expressions?

That was an interview question that I was unable to answer: 32 Answers 32 ...
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Should I use int or Int32

In C#, int and Int32 are the same thing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care? ...
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Creating a new empty branch for a new project

We are using a git repository to store our project. We have our branches departing from the original branch. But now we want to create a small new project to track some documentation. For that we would want to create a new empty branch to start storing our files, and I would want other users of the ...
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Linux command (like cat) to read a specified quantity of characters

Is there a command like cat in linux which can return a specified quantity of characters from a file? 9 Answers ...