Introduction to Python Strings

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

Guide to String Formatting in Python Using F-strings | Built In

Calculate and Plot a Correlation Matrix in Python and Pandas • datagy

Python: Find Average of List or List of Lists • datagy

Python: A class constructed by a length and width and a method which will compute the area of a rectangle - w3resource

How To Substring In Python

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

Substring in Java: Examples, Methods and Applications