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Scala: What is the difference between Traversable and Iterable traits in Scala collections?

...ooked at this question but still don't understand the difference between Iterable and Traversable traits. Can someone explain ? ...
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Reducing the space between sections of the UITableView

Is there a way to reduce the space between two sections of a UITableView? There are about 15 pixels between every single section I have. I did already try to return 0 for -tableView:heightForFooterInSection: and -tableView:heightForHeaderInSection: but that doesn't change anything. ...
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Android: Align button to bottom-right of screen using FrameLayout?

... zoom controls of the map on the bottom right corner of screen. I could do it with RelativeLayout using both alignParentBottom="true" and alignParentRight="true" , but with Framelayout I did not find any such attributes. How do I align it to the bottom-right of screen? ...
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Remove all spaces from a string in SQL Server

... Simply replace it; SELECT REPLACE(fld_or_variable, ' ', '') Edit: Just to clarify; its a global replace, there is no need to trim() or worry about multiple spaces for either char or varchar: create table #t ( c char(8), v varcha...
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Can I bind an array to an IN() condition?

I'm curious to know if it's possible to bind an array of values to a placeholder using PDO. The use case here is attempting to pass an array of values for use with an IN() condition. ...
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How can I detect if a file is binary (non-text) in python?

...imetypes module: import mimetypes ... mime = mimetypes.guess_type(file) It's fairly easy to compile a list of binary mime types. For example Apache distributes with a mime.types file that you could parse into a set of lists, binary and text and then check to see if the mime is in your text or bin...
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Null or default comparison of generic argument in C#

... To avoid boxing, the best way to compare generics for equality is with EqualityComparer<T>.Default. This respects IEquatable<T> (without boxing) as well as object.Equals, and handles all the Nullable<T> "lifted" nuances. Hence: if(EqualityComparer<T>.Default....
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How do I expire a PHP session after 30 minutes?

I need to keep a session alive for 30 minutes and then destroy it. 15 Answers 15 ...
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What is the difference between Numpy's array() and asarray() functions?

...d to this one which ask about asanyarray or other array creation routines, it's probably worth having a brief summary of what each of them does. The differences are mainly about when to return the input unchanged, as opposed to making a new array as a copy. array offers a wide variety of options (...
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In-Place Radix Sort

This is a long text. Please bear with me. Boiled down, the question is: Is there a workable in-place radix sort algorithm ? ...