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Scala how can I count the number of occurrences in a list
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Starting Scala 2.13, the groupMapReduce method does that in one pass through the list:
// val seq = Seq("apple", "oranges", "apple", "banana", "apple", "oranges", "oranges")
seq.groupMapReduce(identity)(_ => 1)(_ + _)
// immutable.Map[String,Int] = Map(banana -> 1,...
How can I mark “To Do” comments in Xcode?
...Well // FIXME, // MARK and #warning aren't the same as // TODO and so that doesn't answer your question.
– trojanfoe
Jun 4 '13 at 11:55
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Why is there no Tree class in .NET?
...ures for collections (List, Queue, Stack, Dictionary), but oddly enough it does not contain any data structures for binary trees. This is a terribly useful structure for certain algorithms, such as those that take advantage of different traversal paths. I'm looking for a correctly written, free impl...
Undefined symbols for architecture i386: _OBJC_CLASS_$_SKPSMTPMessage", referenced from: error
...ile Sources" step of the "Build Phases" tab of your target. Normally Xcode does this for you, but sometimes it loses the plot and you need to add the .m file manually.
To do this:
TargetSettings -> Build Phases -> Compile Sources -> add your .m class ->Build and Run
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How to perform case-insensitive sorting in JavaScript?
... +1 for not calling toLowerCase() when localeCompare already does that by default in some cases. You can read more about the parameters to pass to it here: developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/…
– Milimetric
Sep 12 '14 at 1...
How can I get a Dialog style activity window to fill the screen?
...! but any idea why we have to explicitly specify in code , why fill_parent does not work through xml for activities with theme dialog ?
– sat
Feb 8 '11 at 12:52
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How to check whether mod_rewrite is enable on server?
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what does it mean the ... in <Directory ...> ? What shall I put there? the directory where .htaccess is?
– João Pimentel Ferreira
Jan 6 '18 at 23:32
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✔ Checkmark selected row in UITableViewCell
...edited Jun 24 '16 at 22:43
John Doe
3,0701313 gold badges5353 silver badges107107 bronze badges
answered Nov 2 '11 at 15:31
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How do I run only specific tests in Rspec?
...s usage and actual behavior of the rspec program :) Because the Relish doc does not.
– Otheus
Jul 22 '16 at 15:22
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Unbalanced calls to begin/end appearance transitions for
...lay:0.0
Try to move the method into the viewWillAppear and guard it so it does get executed just once (would recommend setting up a property)
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