In this tutorial, I will dissect the components that make up a regular expression to validate a user input string for a valid email address. My understanding of what a Regular Expressions is that it is a search pattern expression that can be used to search for or omit objects/characters in any given string.
What Is a Regex? A regex, which is short for regular expression, is a sequence of characters that defines a specific search pattern. When included in code or search algorithms, regular expressions can be used to find certain patterns of characters within a string, or to find and replace a character or sequence of characters within a string. They are also frequently used to validate input.