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Apache Spark: map vs mapPartitions?

What's the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks. ...
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Haskell export current module with additional imported module

... postfix: "", imageUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
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How do I show a marker in Maps launched by geo URI Intent?

...rtActivity(intent); You can omit (Label+Name) if you don't want a label, and it will choose one randomly based on the nearest street or other thing it thinks relevant. share | improve this answer ...
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How to sort a list in Scala by two fields?

...ort a list in Scala by two fields, in this example I will sort by lastName and firstName? 4 Answers ...
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Why doesn't this code simply print letters A to Z?

... convention when dealing with arithmetic operations on character variables and not C's. For example, in Perl 'Z'+1 turns into 'AA', while in C 'Z'+1 turns into '[' ( ord('Z') == 90, ord('[') == 91 ). Note that character variables can be incremented but not decremented and even so only plain ASCII ch...
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How can I perform a culture-sensitive “starts-with” operation from the middle of a string?

... I'll consider the problem of many<->one/many casemappings first and separately from handling different Normalization forms. For example: x heiße y ^--- cursor Matches heisse but then moves cursor 1 too much. And: x heisse y ^--- cursor Matches heiße but then moves cursor 1 to...
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Best Practice: Software Versioning [closed]

Is there any guideline or standard best practice how to version a software you develop in your spare time for fun, but nevertheless will be used by some people? I think it's necessary to version such software so that you know about with version one is talking about (e.g. for bug fixing, support, and...
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C++ Dynamic Shared Library on Linux

...ain(int argc, char **argv) { /* on Linux, use "./myclass.so" */ void* handle = dlopen("myclass.so", RTLD_LAZY); MyClass* (*create)(); void (*destroy)(MyClass*); create = (MyClass* (*)())dlsym(handle, "create_object"); destroy = (void (*)(MyClass*))dlsym(handle, "destroy_object"); My...
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Difference between a Seq and a List in Scala

... In Java terms, Scala's Seq would be Java's List, and Scala's List would be Java's LinkedList. Note that Seq is a trait, which is equivalent to Java's interface, but with the equivalent of up-and-coming defender methods. Scala's List is an abstract class that is extended by...
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How do I create an empty array in YAML?

... I just wanted to add that you can go into irb and type something like: "require 'yaml'; YAML::dump({ :hi => [] })" to see what the yaml should be for an object. – Mike A. Feb 24 '11 at 21:15 ...