🤔 Lambda functions in Python

What are they? Where to use them? How to use them?

🧵Let's find out👇
1️⃣ Lambda function has its origin in A. Curch's idea of lambda calculus.

https://en.wikipedia.org/wiki/Lambda_calculus

In Python it consists of:
keyword - lambda
bound variable - x
body - x + 1 (always single expression)

It's also referred to as Anonymous function
2️⃣ You can use any variable defined inside the function's scope and bound variables inside lambda's body

It can be executed right away - you just need to wrap it with parenthesis and call it the same way as a regular function
3️⃣ It can be used with higher-order functions like map, reduce, filter.

Although they can be used, it's preferred to use list comprehension where you can
4️⃣ It can be used with key functions like sorted, min, and max.
5️⃣ You can read more here: https://realpython.com/python-lambda/ 
How to Use Python Lambda Functions – Real Python

In this step-by-step tutorial, you'll learn about Python lambda functions. You'll see how they compare with regular functions and how you can use them in accordance with best practices.

https://realpython.com/python-lambda/
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