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Lambda functions, also known as anonymous functions, are a concise way to create small, unnamed functions in Python. They are often used for short-lived operations where a full function definition seems unnecessary. In this tutorial, we'll explore how to use lambda functions with if-else statements to create compact and expressive code.
The syntax for a lambda function is:
Let's consider a scenario where we want to create a lambda function that checks if a given number is even or odd.
In this example, the lambda function is_even takes one argument x and checks if x is even or odd using the if-else statement. The result is then assigned to the result variable and printed.
Lambda functions with if-else statements are particularly useful in situations where a simple conditional check is required, and defining a full function seems excessive. Common use cases include:
Sorting with a Custom Key:
Filtering a List:
Mapping Values:
Lambda functions with if-else statements provide a concise and readable way to express simple conditional logic in Python. While they are best suited for short and focused operations, understanding how to use them effectively can lead to more expressive and compact code.
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