Creating Regular Expression

We can  create regular expressions by using the RegExp constructor or by using a literal notation with slashes (/.../).

Creating a Regular Expression:

Using Literal Notation: 

let regex = /pattern/;

Using RegExp Constructor:

let regex = new RegExp('pattern');

Basic Pattern Matching:

Characters:

let regex = /hello Coders/;

Metacharacters:

Special characters with special meanings like `^`, `$`, `.`, `*`, `+`, `?`, `\`, `()`, `[]`, `{}`, etc.