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How to print the contents of RDD?
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If you want to view the content of a RDD, one way is to use collect():
myRDD.collect().foreach(println)
That's not a good idea, though, when the RDD has billions of lines. Use take() to take just a few to print out:
myRDD.take(n).foreach(println)
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How do I test if a string is empty in Objective-C?
...RO WIDTH SPACE is doesn't really matter, because @"\u200B" is a character nonetheless so if you test for the string to be empty, it will say it isn't because there is a character in it. It's just not printable following the Unicode standard.
– bmeulmeester
Jun ...
Primary key/foreign Key naming convention [closed]
...hrough filibuster style endurance based last-man-standing arguments.
Pick one and tell them to focus on issues that actually impact your code.
EDIT: If you want to have fun, have them specify at length why their method is superior for recursive table references.
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PHP convert XML to JSON
...to json in php. If I do a simple convert using simple xml and json_encode none of the attributes in the xml show.
19 Answer...
Should I instantiate instance variables on declaration or in the constructor?
...lass. Instead, using Dependency Injection is preferable - i.e. letting someone else (another class/framework) instantiate and inject the dependencies in your class.
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Your branch is ahead of 'origin/master' by 3 commits
...s like:
In a good workflow your remote copy of master should be the good one while your local copy of master is just a copy of the one in remote. Using this workflow you'll never get this message again.
If you work in another way and your local changes should be pushed
then just git push origin as...
How to determine whether an object has a given property in JavaScript
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Does anyone need to distinguish between "not defined" and "defined to be undefined?"
– jpsimons
Dec 12 '09 at 22:25
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Git ignore file for Xcode projects
...sing the top-voted answer, but it needs a bit of cleanup, so here it is redone for Xcode 4, with some improvements.
I've researched every file in this list, but several of them do not exist in Apple's official Xcode documentation, so I had to go on Apple mailing lists.
Apple continues to add undoc...
Setting dynamic scope variables in AngularJs - scope.
... to use $parse.
"Converts Angular expression into a function."
If anyone has a better one please add a new answer to the question!
Here is the example:
var the_string = 'life.meaning';
// Get the model
var model = $parse(the_string);
// Assigns a value to it
model.assign($scope, 42);
// A...
Most simple but complete CMake example
... it tries to cover most of the basics, including resources and packaging.
one thing it does non-standard is resource handling. By default cmake wants to put them in /usr/share/, /usr/local/share/ and something equivalent on windows. I wanted to have a simple zip/tar.gz that you can extract anywhere...