Mastering Regular Expressions in JavaScript from Udemy

What's inside

Learning objectives

Create basic regular expressions for matching data.
Make use of all the javascript methods that accept regular expressions.
Understand the differences between the varied javascript methods used with regular expressions.
Test regular expressions before deploying them in your code.
Understand regular expression syntax.
Define more complex patterns using regular expressions.
Use metacharacters and characters sets in defining patterns.

Take advantage of repetition and grouping.
Use anchored expressions and lookahead assertions correctly.
Include unicode when necessary.
Solve common regular expression problems in javascript.
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Create basic regular expressions for matching data.
Make use of all the javascript methods that accept regular expressions.
Understand the differences between the varied javascript methods used with regular expressions.
Test regular expressions before deploying them in your code.
Understand regular expression syntax.
Define more complex patterns using regular expressions.
Use metacharacters and characters sets in defining patterns.
Take advantage of repetition and grouping.
Use anchored expressions and lookahead assertions correctly.
Include unicode when necessary.
Solve common regular expression problems in javascript.
Show more
Show less

Syllabus

Introduction

At the conclusion of this section you will be able to identify the history of regular expressions. You will be able to access regEx Pal and complete basic regular expressions for JavaScript.

Regular Expressions: A Short History

Getting Started

Using Regular Expressions in JavaScript

Understanding Regular Expression Flags

Using Regexpal

Download Text Strings

At the conclusion of this section, you will be able to include different characters, escape characters, make use of meta-characters and use the wildcard in your regular expressions.

Understanding Metacharacters

Using the Wildcard

In the previous topic I mentioned that the wildcard character . represents any single character with the exception of some control characters like new line. Well in ECMAScript release 2018 a new flag was added to regular expressions in JavaScript. The new flag is the letter 's' and it called the dotAll Flag. This flag can be added to your regular expression if you would like the wildcard character to match all characters.

The dotAll flag can be included with other flags such as global 'g' or case insensitive 'i'.

Escaping Metacharacters

Matching Control Characters

Take a moment and check your knowledge of the characters section.

Exercise 1 Start

Exercise 1 Finish

At the conclusion of this section you will be able to define character sets, specify a range, negate the characters in a set, use escape sequences and use shorthand for character sets.

Using Character Sets

Specifying a Range in a Character Set

Excluding a Character Set

Escaping Metacharacters in a Character Set

Using Shorthand for Character Sets

Take a moment and check your knowledge of character sets.

Exercise 2 Start

Exercise 2 Finish

At the conclusion of this section you will be able to use repetition by specifying the amount or not. You will also be able to explain the concept of lazy and greedy.

Using Repetition in Your Patterns

Understanding Greediness and Laziness in Regular Expressions

Specifying a Repetition Amount

Revisiting Greedy and Lazy Concepts

Take a moment to check your knowledge of repetition and the concepts of greedy and lazy expressions.

Exercise 3 Start

Exercise 3 End

At the conclusion of this section you will be able to use word anchors and start and end anchors.

Understanding Anchored Expressions

Using Start and End Anchors

Using the Multi-line Flag

Working with Word Boundaries

Writing Accurate Regular Expressions

Take a moment to check your knowledge of anchors.

Exercise 4 Start

Exercise 4 Finish

At the conclusion of this section you will be able to work with alternates and use groups to organize and capture portions of your regular expression as well as for look aheads and references.

Specifying Options

Using Grouping

Using Grouping with JavaScript

Understanding Capturing Groups

Understanding Group Back References

Named capture groups were introduced in ECMAScript 2018 and are now widely supported.

Using Lookahead Groups

Using Negative Lookahead Groups

Lookbehind groups were introduced in ECMAScript 2018 and are now widely supported.

Take a moment and check your knowledge of alternates and groups.

Exercise 5 Start

Exercise 5 End

Exercise 5 Follow Up

At the conclusion of this section you will understand how to use unicode in regular expressions.

Introducing Unicode

Using Unicode Characters

Understanding ES6 Unicode Features

At the completion of this sections you will be able to apply regular expressions to help solve many common problems such as checking email addresses, twitter handles, passwords and more.

Applying Regular Expressions

Matching an Email Address

Matching a Twitter Handle

Testing Passwords

Using Replace with Regular Expressions

Matching a Word Next to Another Word

Validating Dates

Validating Dates Revisited

Validating IP Numbers

Capturing Matched Text

Discovering Information About a Match

Iterating Over Matches

Iterating Over Matches Take 2

Conclusion

BONUS Lecture! Discounts on Other Courses

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Suitable for JavaScript developers who want to enhance their coding skills

Provides in-depth coverage of regular expressions, making it suitable for learners who want a comprehensive understanding of the topic

Taught by experienced instructors with expertise in JavaScript and regular expressions, ensuring high-quality content

Involves hands-on exercises and quizzes, providing opportunities for learners to apply their knowledge and receive feedback

Beginners may find some concepts challenging, requiring additional effort to grasp the material

Intermediate learners will find the course engaging and beneficial for expanding their knowledge of regular expressions

Reviews summary

Excellent course

According to students, this course is an Excellent course and thoroughly enjoyed. Students appreciate how crystal clear the instructor explains the course concepts. Overall, learners highly recommend this course.

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Mastering Regular Expressions in JavaScript with these activities:

Matching metacharacters exercise

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Practice identifying and using metacharacters to define patterns in regular expressions.

Browse courses on Metacharacters

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Identify the different types of metacharacters used in regular expressions.
Create regular expressions using metacharacters.
Test your regular expressions to ensure they match the desired patterns.

Pair Programming Exercise

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Collaborate with a peer to solve coding challenges involving JavaScript regular expressions.

Browse courses on Regular Expressions

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Find a partner with similar skill level.
Choose a coding challenge that involves regular expressions.
Work together to solve the challenge, sharing ideas and perspectives.
Review and discuss each other's solutions.

Anchors and Lookahead Assertions Tutorial

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Review the use of anchors and lookahead assertions to enhance regular expression patterns.

Browse courses on Anchors

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Understand the concept of anchors and lookahead assertions.
Follow a tutorial on using anchors and lookahead assertions in regular expressions.
Practice using anchors and lookahead assertions to create more specific patterns.

Four other activities

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Show all seven activities

Regex Playground

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Build an interactive tool that allows users to experiment with different regular expression patterns.

Browse courses on JavaScript

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Design the user interface of the tool.
Implement the logic for evaluating regular expressions.
Make the tool accessible online or through a desktop application.

Mastering Regular Expressions

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Gain a comprehensive understanding of regular expressions through a detailed reference book.

View Mastering Regular Expressions on Amazon

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Read through the book, focusing on the chapters relevant to JavaScript regular expressions.
Work through the exercises and examples provided in the book.
Apply the concepts to your own regular expression patterns.

Regex Challenge

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Test your regular expression skills against others in a competitive environment.

Browse courses on Regular Expressions

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Find a regex challenge or competition.
Study and practice regular expression techniques.
Compete in the challenge and compare your performance to others.

Character Set Patterns Video

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Create a concise and informative video to demonstrate how to use character sets in regular expression patterns.

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Plan the content and outline the key concepts to cover.
Record a video explaining the use of character sets in regular expressions.
Edit the video to ensure clarity and conciseness.
Publish the video on a platform like YouTube or Vimeo.

Career center

Learners who complete Mastering Regular Expressions in JavaScript will develop knowledge and skills that may be useful to these careers:

Software Developer

Software Developers work to bring digital products to life by translating concepts into code. With a course like Mastering Regular Expressions in JavaScript, a learner may help build a foundation for career success. JavaScript is one of the most sought-after coding languages currently and regular expressions offer an efficient way to process strings. Furthermore, the course offers instruction on the integration of regular expressions into JavaScript code.

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Web Developer

Web Developers design and develop websites. In this role, you are responsible for translating the concept for a website into a real world digital interface that users can interact with. Knowing regular expressions can be very helpful for a Web Developer since it improves the efficiency of processing information on the web.

See salaries and explore the career path for Web Developer

Full-Stack Developer

Full Stack Developers carry out duties associated with both frontend and backend web development. The knowledge one would gain by taking Mastering Regular Expressions in JavaScript can be very helpful since it gives you the ability to work efficiently with different programming languages. Regular expressions are applied across many languages.

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Data Analyst

Data Analysts clean, process, and analyze data. They transform raw data into meaningful visuals and reports that can be used to inform better business decisions. Regular expressions can be used to extract meaningful data from both structured and unstructured sources. Mastering Regular Expressions in JavaScript can help build a foundation for success in a Data Analyst role.

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Security Engineer

Security Engineers protect vital computer systems from unauthorized access, cyber attacks, and other threats. Mastering Regular Expressions in JavaScript can be useful as regular expressions are used in security scanning tools to find potential security vulnerabilities in code or networks.

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User Experience (UX) Designer

User Experience Designers work to improve the overall user experience, making it easy and enjoyable for users to interact with digital products. While regular expressions may not be a core responsibility, UX Designers who wish to go into development may find Mastering Regular Expressions in JavaScript helpful.

See salaries and explore the career path for User Experience (UX) Designer

Technical Writer

Technical Writers create and maintain technical documentation such as user manuals, how-to guides, and other instructional materials. If your work involves documenting JavaScript, you may find that a course like Mastering Regular Expressions in Javascript can be helpful.

See salaries and explore the career path for Technical Writer

Quality Assurance Analyst

Quality Assurance Analysts ensure the quality of software products. They design and execute tests to identify and resolve defects. Mastering Regular Expressions in JavaScript may be useful as it can help with testing JavaScript code.

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Database Administrator

Database Administrators manage and maintain databases, ensuring that they are available and performant. Mastering Regular Expressions in JavaScript may be useful as regular expressions can be used to query and manipulate data in databases.

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Systems Analyst

Systems Analysts study an organization's current business processes and develop plans to improve efficiency. Mastering Regular Expressions in JavaScript can be useful for documenting and analyzing processes.

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Network Administrator

Network Administrators install, configure, and maintain computer networks. Mastering Regular Expressions in JavaScript may be useful for analyzing network traffic and identifying patterns.

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Project Manager

Project Managers plan, execute, and close projects. Some projects involve software development. If you work on projects involving JavaScript, you may find a course like Mastering Regular Expressions in JavaScript to be helpful.

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Game Developer

Game Developers design and develop video games. Mastering Regular Expressions in JavaScript may be useful for developing game engines and scripting game logic.

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Computer Scientist

Computer Scientists conduct research and develop new computing technologies. Mastering Regular Expressions in JavaScript may be useful for developing new algorithms and data structures.

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Data Scientist

Data Scientists use scientific methods, processes, algorithms, and systems to extract knowledge and insights from data in various forms, both structured and unstructured. Mastering Regular Expressions in JavaScript may be useful for extracting data from unstructured sources.

See salaries and explore the career path for Data Scientist