First clear solution for Sort by Extension by Jose_Facundo_Bogado_Navarrete - python coding challenges

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First solution in Clear category for Sort by Extension by Jose_Facundo_Bogado_Navarrete

from typing import List

def sort_by_ext(files: List[str]) -> List[str]:
    # your code here
    k_x = lambda x: x.split(".")[-1]+x if (x.find(".")>0 or x[1::].find(".")>0) and x[-1]!="." else "a"+x
    return sorted(files,key=k_x)

April 30, 2021

Comments:

jsg-inet on June 21, 2021, 10:45 a.m.
I definitely have to learn and train more about the use of "lambda".

Jose_Facundo_Bogado_Navarrete on June 22, 2021, 6:25 a.m.
its easier than you think, lambda is useful when you can define an object in one line for example a list comprension <pre class='brush: python'>[s for s in range(10)] #-> [0,1,2,3,4,...,10], #so yo can define foo= lambda n:[s for s in range(n)] #foo(n) => [0,1,2,...,n] </pre>

jsg-inet on June 22, 2021, 6:57 a.m.
Thanks for your explanation! Now, I need to apply it and practice more and more.

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