Reduce — The Power of a Single Python Function

<p>While Python is not a pure functional programming language, you can still do a lot of functional programming in it. Just one function — <code>reduce</code> — can do most of it, and in this article, I will (try to) show you all the things one can do just with <code>reduce</code>.</p> <h1>Reduce</h1> <p>Let’s begin by looking at what <code>reduce</code> is. Formally, Python's <code>functools.reduce</code> is a higher-order function that folds a binary operation into each pair of items in an iterable. In simpler words, it's a function that takes a function and an iterable as parameters, applying the function to pairs of values from the iterable until only one value is left.</p> <p>The easiest way to really understand what it does is to look at an example. Here’s how you can implement factorial using <code>reduce</code></p> <p><a href="https://betterprogramming.pub/reduce-the-power-of-a-single-python-function-21f9aaa2c18e">Read More</a></p>