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Lambda expression is a simplified anonymous function that allows you to write code in a cleaner and more readable way. It is often used to simplify code and reduce duplication. A lambda expression consists of the keyword lambda and a colon, followed by a set of parameters and an expression. For example:
lambda x: x + 1
This Lambda expression accepts a parameter x and returns the value of x plus 1.
Lambda expressions can be used in a variety of situations, including:
def apply_function(function, numbers): return [function(number) for number in numbers] result = apply_function(lambda x: x + 1, [1, 2, 3]) print(result)# [2, 3, 4]
numbers = [1, 2, 3, 4, 5] result = [number + 1 for number in numbers] print(result)# [2, 3, 4, 5, 6]
numbers = (number + 1 for number in range(5)) for number in numbers: print(number)# 1 2 3 4 5
names = ["John", "Mary", "Bob"] ages = [20, 25, 30] result = {name: age for name, age in zip(names, ages)} print(result)# {"John": 20, "Mary": 25, "Bob": 30}
Lambda expressions are a powerful tool in python that can make your code more readable and concise. By understanding the use of lambda expressions, you can write clearer, more maintainable code.
In short, Lambda expressions are a very useful feature in Python that can help you write cleaner and more readable code. If you haven't used Lambda expressions yet, I highly recommend youLearnand start using it.
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