Introduction to Python Strings

31 essential String methods in Python you should know - Python Engineer

Python String - GeeksforGeeks

Python: Takes a list of words and return the length of the longest one - w3resource

Python Program To Find Area And Perimeter Of Rectangle - Pythondex

Python: Find an Index (or all) of a Substring in a String • datagy

JavaScript Substring Examples - Slice, Substr, and Substring Methods in JS

5 Ways to Find the Index of a Substring in Python | Built In