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What is choice_set in this Django app tutorial?

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What's a 3D doing in this HTML?

I'm trying to duplicate a mailer I got into my gmail by taking a look at its code. I see a lot of this in multiple source viewers: ...
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Why does sed not replace all occurrences?

If I run this code in bash: 2 Answers 2 ...
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'size_t' vs 'container::size_type'

Is there is a difference between size_t and container::size_type ? 3 Answers 3 ...
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Convert UTC to local time in Rails 3

I'm having trouble converting a UTC Time or TimeWithZone to local time in Rails 3. 6 Answers ...
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PHP namespaces and “use”

I am having a little trouble with namespaces and the use statements. 2 Answers 2 ...
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Select first occurring element after another element

I've got the following HTML code on a page: 5 Answers 5 ...
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Anonymous recursive PHP functions

Is it possible to have a PHP function that is both recursive and anonymous? This is my attempt to get it to work, but it doesn't pass in the function name. ...
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How do I check for last loop iteration in Django template?

I have a basic question, in the Django template language how can you tell if you are at the last loop iteration in a for loop? ...
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Can you have additional .gitignore per directory within a single repo?

Can you create a .gitignore file in a directory that only applies to files (and directories) within that directory? 3 Answe...