What function does this syntax perform in python

Question

Please explain the syntax in the arguments of the longestCommonPrefix function. This function takes a list of strings as inputs.

class Solution:
    def longestCommonPrefix(self, strs: List[str]) -> str:

Does this answer your question? What does -> mean in Python function definitions? — 0x5453
– 0x5453, Commented Mar 5, 2020 at 16:06

blueteeth · Accepted Answer · 2020-03-05 16:03:01Z

3

The arguments and the -> describe the type of the function.

def longestCommonPrefix(self, strs: List[str]) -> str:
    pass

So it takes one argument, strs which is a list of strings (List[str]).
Then it returns a string (str).

answered Mar 5, 2020 at 16:03

blueteeth

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1 Comment

To add to this answer, the self argument means this function is a non-static member function of some class