Explore JavaScript regular expressions: learn about regex history, create patterns with special characters, parse data, and match passwords/emails, gaining comprehensive text processing skills.

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Regular Expressions, also known as Regex, come in handy in a multitude of text processing scenarios. Regex defines a search pattern using symbols and allows you to find matches within strings. The applications of this span from software engineering to data science and beyond.

In this course, you will begin with an introduction to regex, its history, and various types of regular expressions. 

You will then learn how to create your own regular expressions using various techniques and special characters. In the latter half of the course, you will explore RegExp Objects, how to parse data, turn phrases into an array of strings, and lastly password and email pattern matching.

By the end of this course, you will be a regular expressions expert.

JavaScript Regular Expressions in Detail

Regular expressions are a very powerful tool, and, in this chapter, we’ve shown two different use cases for them: pattern validation and smart string replacement, essentially packing a lot of logic inside a single line.


While that might sound like an anti-pattern because you’re hiding logic, you’re actually saving a lot of time writing code and complex logic paths into a single line that, if you know how to interpret, gives you all the details you need.


Should you be using regular expressions everywhere? Not really. We wouldn’t recommend that, but if you’re dealing with complex operations with strings and your logic starts growing with the more use cases you consider, thinking about using RegExps might be a good alternative.

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Here are our concluding remarks on the course!


The Beginning of Regular Expressions

The Anatomy of Regular Expressions

The RegExp Object

Thinking in Regular Expressions

Regular Expressions in the Wild

Wrapping Up

Conclusion