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What does inverse_of do? What SQL does it generate?
I'm trying to get my head around inverse_of and I do not get it.
8 Answers
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Create objective-c class instance by name?
Is it possible to create an instance of a class by name? Something like:
4 Answers
4
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Why is XOR the default way to combine hashes?
Say you have two hashes H(A) and H(B) and you want to combine them. I've read that a good way to combine two hashes is to XOR them, e.g. XOR( H(A), H(B) ) .
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Shards and replicas in Elasticsearch
I am trying to understand what shard and replica is in Elasticsearch, but I didn't manage to understand it. If I download Elasticsearch and run the script, then from what I know I have started a cluster with a single node. Now this node (my PC) have 5 shards (?) and some replicas (?).
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Django datetime issues (default=datetime.now())
I have the below db model:
9 Answers
9
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Setting direction for UISwipeGestureRecognizer
I want to add simple swipe gesture recognition to my view based iPhone project. Gestures in all directions (right, down, left, up) should be recognized.
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How to add pandas data to an existing csv file?
I want to know if it is possible to use the pandas to_csv() function to add a dataframe to an existing csv file. The csv file has the same structure as the loaded data.
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How to decode HTML entities using jQuery?
How do I use jQuery to decode HTML entities in a string?
19 Answers
19
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Android: create a popup that has multiple selection options
I've been searching around trying to figure out how to create a popup or a dialog that has 4 options to choose from.
4 Answ...
How do you add an in-app purchase to an iOS application?
How do you add an in-app purchase to an iOS app? What are all the details and is there any sample code?
5 Answers
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