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 ## What is Regular Expression?
 
-[![](https://img.shields.io/badge/-Download%20PDF%20-0a0a0a.svg?style=flat&colorA=0a0a0a)](https://gum.co/learn-regex)
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 > A regular expression is a group of characters or symbols which is used to find a specific pattern in a text.
 
 A regular expression is a pattern that is matched against a subject string from