Why Use Functional Programming

L2 02 015 Why Use Funcitonal Programming V4

Functional programming

In the video, David explains why Spark uses functional programming. He also implies that Python is not a functional programming language. How is it possible that Spark programs can be written in Python if Python is not a functional programming language? Mark all answers that are true.

You cannot write Spark programs in Python.

The PySpark API is written with functional programming principles in mind.

You can write Spark programs in Python using an API, but you need to be extra careful when writing Spark programs with the PySpark API because Python is an imperative language.

Spark is written in Scala. So the PySpark API first translates your code to Scala, which is a functional programming language.

SOLUTION:

The PySpark API is written with functional programming principles in mind.

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