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Xiaobian to share with you how python uses lambda function, I believe most people still do not know how, so share this article for your reference, I hope you have a lot of gains after reading this article, let's go to understand it together!

Animation of lambda function

Some readers have complained that lambda functions don't work well and asked if I could explain them.

For example, find the lambda function below:

def max_len(*lists): return max(*lists, key=lambda v: len(v))

There are two doubts:

What is the value of parameter v?

Does lambda function have a return value? If yes, what is the return value?

Call the above function to find the three longest lists:

r = max_len([1, 2, 3], [4, 5, 6, 7], [8])print(f'longer list is {r}')

Program complete operation process, animation demonstration is as follows:

Conclusion:

A possible value for the parameter v is *lists, which is an element of the tuple.

lambda function return value, equal to lambda v colon after the return value of the expression.

That's all for "how python uses lambda functions." Thank you for reading! I believe that everyone has a certain understanding, hope to share the content to help everyone, if you still want to learn more knowledge, welcome to pay attention to the industry information channel!

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