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iOS - How to set a UISwitch programmatically

I want to set my UISwitch to on or off programmatically. How would I do that? I am an iOS newbie. 5 Answers ...
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Get column index from column name in python pandas

In R when you need to retrieve a column index based on the name of the column you could do 7 Answers ...
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RESTful API methods; HEAD & OPTIONS

I'm writing a RESTful API module for an application in PHP, and I'm a bit mixed on the verbs HEAD and OPTIONS . 3 Answer...
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MongoDB: How to query for records where field is null or not set?

I have an Email document which has a sent_at date field: 6 Answers 6 ...
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How to convert a Git shallow clone to a full clone?

Follow-up of this so-question: if I have a shallow clone, how to fetch all older commits to make it a full clone? 6 Answe...
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Difference between a Seq and a List in Scala

I've seen in many examples that sometimes a Seq is being used, while other times is the List... 5 Answers ...
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How do you track record relations in NoSQL?

I am trying to figure out the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal we...
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“new” keyword in Scala

I have a very simple question - when should we apply the new keyword when creating objects in Scala? Is it when we try to instantiate Java objects only? ...
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Is there a performance difference between a for loop and a for-each loop?

What, if any, is the performance difference between the following two loops? 16 Answers ...
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Regular expression for a string that does not start with a sequence

I'm processing a bunch of tables using this program , but I need to ignore ones that start with the label "tbd_". So far I have something like [^tbd_] but that simply not match those characters. ...