This tutorial will cover Regular Expressions more commonly referred to as "RegEx". To me the most interesting aspect of RegEx is that it can be used in all*¹ programming languages.
RegEx can be considered a universal language of sorts due to this cross compatibility.
The most common applications for RegEx are Find, replace, and validation of string type data.
This tutorial of sorts will cover probably the most common use case for RegEx and that's email validation. Below is an example of an email validation Regular Expression.↓