| Python: Lambda | - Big data with Python

Lambdas are one line functions.

They are also known as anonymous functions in some other languages. You might want to use lambdas when you don’t want to use a function twice in a program. They are just like normal functions and even behave like them.

(lambda x, y: x + y)(2, 3) equals to 5

[(lambda x: x*3)(i) for i in range(0,5)] equals to 0, 3, 6

The best way to learn new things is to take a practical approach of the things you want to learn. Here is a fragment of code that demonstrates the use of the lambda statement in Python:

ƒ python command

print((lambda x, y: x + y)(2, 3))

print([(lambda x: x*3)(i) for i in range(0,5)])

√ output

[0, 3, 6, 9, 12]