#28 Regular Expressions in JavaScript Part 1
What Is a Regular Expression?
A regular expression is a sequence of characters that forms a search pattern.
When you search for data in a text, you can use this search pattern to describe what you are searching for.
A regular expression can be a single character or a more complicated pattern.
Regular expressions can be used to perform all types of text search and text replace operations.
A regular expression in JS is an object that describes a pattern of characters.
The JavaScript RegExp class represents regular expressions, and both String and RegExp define methods that use regular expressions to perform powerful pattern-matching and search-and-replace functions on the text.
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