Lazy Programming Series – Anonymous Lambda function in Python
Anonymous Lambda function in Python:
In Python, anonymous functions are created using the lambda
keyword. They are also known as lambda functions or lambda expressions. Lambda functions are used when you need a small, one-line function without defining it using the def
keyword.
Here’s the basic syntax of a lambda function:
Here’s an example of how you can use a lambda function to create a simple square function:
You can then use this square
lambda function to calculate the square of a number:
Lambda functions can take any number of arguments, but the expression must always result in a single value. They are often used in conjunction with functions like map()
, filter()
, and reduce()
.
For example, using map()
with a lambda function to double each element in a list:
While lambda functions are useful for simple operations, it’s generally recommended to use regular functions for more complex tasks as they are easier to read and debug.