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What is the difference between map and flatMap and a good use case for each?
...wo line-lengths:
rdd.map(_.length).collect
res1: Array[Int] = Array(13, 16)
But flatMap (loosely speaking) transforms an RDD of length N into a collection of N collections, then flattens these into a single RDD of results.
rdd.flatMap(_.split(" ")).collect
res2: Array[String] = Array(...
How to redirect output to a file and stdout
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edited Oct 23 '17 at 17:10
gustafbstrom
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Why do results vary based on curly brace placement?
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ResiduumResiduum
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2D cross-platform game engine for Android and iOS? [closed]
I've worked for some time with Unity3d and found it's 2D part with OnGUI() or GUITextures too clumsy. Also, even a smallest game done on Unity3d is at least 10MB download which is just too much for a 2D game.
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Sending email with PHP from an SMTP server
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chai test array equality doesn't work as expected
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How do you use “git --bare init” repository?
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Firstly, just to check, you need to change into the directory you've created before running gi...
Is onload equal to readyState==4 in XMLHttpRequest?
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Is there an easy way to create ordinals in C#?
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This page gives you a complete listing of all custom numerical formatting rules:
Custom numeri...