# Regular Expression (regex) Resources

Regular expressions (often referred to as regex) are a way to describe patterns in text so that a computer / software can find what you’re looking for or validate the text against a defined rule. They're used to search, validate, or pull out specific pieces of text from larger strings (like emails, numbers, or words).

To learn a bit about regex, refer to the below links.  
  
Regex cheat-sheet with explanations:  
[<span style="color: inherit;">https://www.rexegg.com/regex-quickstart.php</span>](https://www.rexegg.com/regex-quickstart.php)  
  
Regex simple cheat-sheet:  
[<span style="color: inherit;">https://cheatography.com/davechild/cheat-sheets/regular-expressions/</span>](https://cheatography.com/davechild/cheat-sheets/regular-expressions/)  
  
Test regex in an online tool:  
[<span style="color: inherit;">https://regex101.com/</span>](https://regex101.com/)