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JavaScript Regular Expressions in Detail

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

Beginner

39 Lessons

3h

Certificate of Completion

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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This course includes

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Course Overview

Course Content

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Course Overview

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 ...Show More

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...Show More

Course Content

1.

The Beginning of Regular Expressions

6 Lessons

Get familiar with JavaScript regular expressions, their standards, history, and practical uses.

Testing the Expressions

Coding Standards

On With the Show: The Birth of Regular Expressions

Types of Regular Expressions

Quiz on the Introduction to Regular Expressions

2.

The Anatomy of Regular Expressions

12 Lessons

Discover the logic behind defining and utilizing regular expressions with components and flags.

Defining a Regular Expression

What’s Inside a Regular Expression?

Special Characters: Character Classes

Special Characters: Quantifiers

Special Characters: Capturing and Non-Capturing Groups

Special Characters: Matching the Protocol and Hostname

Special Characters: Matching the URL and Non-Capturing Groups

Exercise: A Simple Interpreter

Solution Review: A Simple Interpreter

Quiz on the Anatomy of Regular Expressions

3.

The RegExp Object

6 Lessons

Break apart the versatile use of the RegExp object for dynamic expressions.

Introduction to the RegExp Object

Index of the Last Match

The exec Method

The Other Methods

Quiz on the RegExp Object

4.

Thinking in Regular Expressions

8 Lessons

Enhance your skills in applying regular expressions for dynamic searches, parsing dates, and puzzles.

Exercise: Turning a List of Phrases Into an Array of Strings

Solution: Turning a List of Phrases Into an Array of Strings

Dynamic Regular Expressions

Exercise: A Regular Expression Crosswords

Solution: A Regular Expression Crosswords

5.

Regular Expressions in the Wild

6 Lessons

Map out the steps for practical applications of regular expressions in password and email validation, and text transformations.

Password Pattern Matching

Checking the Expression

Email Pattern Matching

Checking the Expression

Complex Character Replacement

Capturing Variable Names Alone

6.

Wrapping Up

1 Lessons

Implement regex for efficient pattern validation and string management.

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