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How do I delete everything in Redis?

I want to delete all keys. I want everything wiped out and give me a blank database. 22 Answers ...
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Does Swift have access modifiers?

...e highest (least restrictive) to the lowest (most restrictive). 1. open and public Enable an entity to be used outside the defining module (target). You typically use open or public access when specifying the public interface to a framework. However, open access applies only to classes and clas...
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How does Apple know you are using private API?

...es the app has linked to. Something clearly you should not use, like IOKit and WebKit can be detected by this. 2. nm -u This will list all linked symbols. This can detect Undocumented C functions such as _UIImageWithName; Objective-C classes such as UIProgressHUD Ivars such as UITouch._phase (wh...
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How to let PHP to create subdomain automatically for each user?

...p though because you'll have to make sure that all subdomain requests get handled properly. This isn't terrible with Apache but might be tricky in a hosted environment. – Mark Biek Oct 8 '08 at 17:55 ...
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Display number with leading zeros

... In Python 2 (and Python 3) you can do: print "%02d" % (1,) Basically % is like printf or sprintf (see docs). For Python 3.+, the same behavior can also be achieved with format: print("{:02d}".format(1)) For Python 3.6+ the same...
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is not JSON serializable

... simplejson and json don't work with django objects well. Django's built-in serializers can only serialize querysets filled with django objects: data = serializers.serialize('json', self.get_queryset()) return HttpResponse(data, conten...
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How to re-open an issue in github?

...I change it to open again ? I read somewhere that I need rights for push and pull operation. Is that true ? 2 Answers ...
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'typeid' versus 'typeof' in C++

I am wondering what the difference is between typeid and typeof in C++. Here's what I know: 6 Answers ...
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Create timestamp variable in bash script

...ittle easier. I want to create the variable at the beginning of the script and have it print out the current time whenever I issue echo $timestamp . It proving to be more difficult then I thought. Here are some things I've tried: ...
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What's the difference between NOT EXISTS vs. NOT IN vs. LEFT JOIN WHERE IS NULL?

... Thanks for the links! And thanks for the quick overview... My office is blocking the link for some reason :P but I'll check it out as soon as I get to a regular computer. – froadie Feb 11 '10 at 18:47 ...