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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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What does `unsigned` in MySQL mean and when to use it?
What does "unsigned" mean in MySQL and when should I use it?
1 Answer
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jQuery .on function for future elements, as .live is deprecated [duplicate]
... yet. Normally, I would use jQuery's .live function to handle this, but it seems that it is now deprecated in favor of .on .
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...blem in Object-Relational mapping (ORM) discussions, and I understand that it has something to do with having to make a lot of database queries for something that seems simple in the object world.
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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
...lass servlet.java in my default package in src folder. In my web.xml it is mapped as /servlet .
12 Answers
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How do I enter a multi-line comment in Perl? [duplicate]
...ay to comment out more than one line of Perl is
to surround those lines with Pod directives. You have to put these
directives at the beginning of the line and somewhere where Perl
expects a new statement (so not in the middle of statements like the #
comments). You end the comment with =cut,...
AngularJS - How can I reference the property name within an ng-Repeat
In addition to rendering the value of the properties in an object, I'd also like to render the property name as a label. Is there a way to do this with ng-repeat ? For example:
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nginx error “conflicting server name” ignored [closed]
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I assume that you're running a Linux, and you're using gEdit to edit your files. In the /etc/nginx/sites-enabled, it may have left a temp file e.g. default~ (watch the ~).
Depending on your editor, the file could be named .save or something like it. Just run $ ls -lah to see which...
Javascript checkbox onChange
I have a checkbox in a form and I'd like it to work according to following scenario:
10 Answers
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Escape string for use in Javascript regex [duplicate]
...? \. \( \) \| \{ \} \[ \] "
(NOTE: the above is not the original answer; it was edited to show the one from MDN. This means it does not match what you will find in the code in the below npm, and does not match what is shown in the below long answer. The comments are also now confusing. My recommen...