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The map() Function: Overview

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In this section, you’ll learn more about the basics of functional programming, namely how to use the map() function to transform data structures.

You’ll take an example data set represented using an immutable data structure from the previous videos in this course, and then you’ll create a transformed version of the same data using Python’s built-in map() function. map() is one of the functional programming primitives or building blocks available in Python. It’s useful in a number of contexts.

Later in the section, you’ll also see how map() relates to list comprehensions and generator expressions and how using them is (arguably) more Pythonic that relying on plain map() calls.

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