My String Index

Introduction

my_string_index is a python function that returns the index of a specified substring within a given string. It is a highly useful function that can be used in a variety of applications including searching for and manipulating text within large datasets.

Syntax

The syntax of my_string_index is as follows:

def my_string_index(string: str, substring: str) -> int:
    """
    This function returns the index of the first occurrence of the specified substring within the given string
    """

Here, string is the given string and substring is the substring that we want to search for.

Return

The my_string_index function returns an integer value that represents the index of the first occurrence of the specified substring within the given string.

If the specified substring is not found within the given string, the function returns -1.

Examples

Some examples of using my_string_index function are as follows:

Example 1: Finding the index of a single character

>>> my_string_index('hello', 'o')
4

Example 2: Finding the index of a substring

>>> my_string_index('hello world', 'world')
6

Example 3: Specifying a non-existent substring

>>> my_string_index('hello', 'x')
-1

Conclusion

The my_string_index function is a highly useful tool in the python developer's arsenal. It allows for quick and easy searching of strings, making complex string manipulations much simpler. By providing a concise and efficient solution to a common problem, the my_string_index function is an indispensable tool for any python developer.