Using fp-ts for Functional Programming in TypeScript

Gain insights into functional programming with TypeScript. Learn about core fp-ts functionality and monads like Option and Either to enhance your TypeScript projects effectively.

Intermediate

111 Lessons

30h

Certificate of Completion

Gain insights into functional programming with TypeScript. Learn about core fp-ts functionality and monads like Option and Either to enhance your TypeScript projects effectively.

AI-POWERED

Explanations

AI-POWERED

Explanations

This course includes

112 Playgrounds

10 Quizzes

This course includes

112 Playgrounds

10 Quizzes

Course Overview

Functional programming is a programming paradigm that emphasizes immutability and pure functions. It not only makes code easier to understand, test, and parallelize, but also offers improved performance. TypeScript is a statically-typed object-oriented programming language that builds on JavaScript. Although TypeScript is not a purely functional programming language, it can be used to write functional code too. This course is for beginners with little to no knowledge of TypeScript and functional programmi...Show More

What You'll Learn

Familiarity with the concepts of functional programming

Working knowledge of functional JavaScript

An understanding of TypeScript’s type system

The ability to build your own projects using TypeScript

Hands-on experience with the fp-ts library

What You'll Learn

Familiarity with the concepts of functional programming

Course Content

Introduction to Functional Programming

Get familiar with functional programming's concepts, benefits in JavaScript, and TypeScript enhancements.

Before We Dive Deeper

Why Functional Programming?Why JavaScript?Why TypeScript?Functional Programming with TypeScript Coding Challenge: Rewriting Function with Better Types Solution Review: Rewriting Function with Better Types Quiz on Types

Tidbits: Some Useful JavaScript and TypeScript

Unpack the core of essential JavaScript/TypeScript fundamentals for functional programming and practical coding challenges.

Setting Up TypeScript Creating Functions in JavaScript Backticks for Easy Printing The Ternary Operator Discriminating Unions Summary: JavaScript and TypeScript Tidbits Coding Challenge: Create Algebraic Data Type Solution Review: Create Algebraic Data Type Coding Challenge: Rewriting Code as an Expression Solution Review: Rewriting Code as an Expression Quiz: Tidbits of JavaScript and TypeScript

First Steps with Functional Programming

Examine fundamental aspects of functional programming and practical applications using higher-order functions, currying, composition, and monads.

Introduction to Functional Programming

Writing Functional Code Writing Functional Programs Currying Combining Currying and Composition Problems with Currying and Composition Monads Advantages of Monads Briefly about Types Summary: First Steps with Functional Programming Coding Challenge: Higher-Order Function Solution Review: Higher-Order Function Coding Challenge: Using Option in Function Solution Review: Using Option in Function Quiz: First Steps with Functional Programming

Our First Project: User Registration

Grasp the fundamentals of user registration with fp-ts, focusing on robust type definitions, validations, and adaptable code structure.

Defining Our Types Validation with Either Before We Continue: Either or Validation?Creating our User with Lifting Bringing it Together Cope with Changing Business Requirements Summary: User Registration Project Coding Challenge: Adding a Check Solution Review: Adding a Check Coding Challenge: Working with Either and Pipe Solution Review: Working with Either and Pipe Quiz: User Registration Project

Deploying a Monitoring Application

Take a closer look at deploying and monitoring applications using functional programming in TypeScript.

AWS Lambda and SAM Setting Up Our Project Using the Cloudwatch SDK Monads for Asynchronous Behavior Transforming Our Data Synchronous Behavior and IO Bringing it All Together Extensions A Small Aside: Memoization Summary: Deploying a Monitoring Application Coding Challenge: Working with Flow Solution Review: Working with Flow Coding Challenge: Working with TaskEither Solution Review: Working with TaskEither Quiz: Deploying a Monitoring Application

Testing

8 Lessons

Tackle different testing methodologies, TDD, and functional programming testing practices in TypeScript.

Automate Login-Workflow Testing with Playwright

Project

Once More unto the Breach: Our Final Application

11 Lessons

Master the steps to build and deploy hotel reservations using TypeScript, Lambdas, and DynamoDB.

Expanding our Reservation Application

10 Lessons

Get familiar with enhancing the reservation app using Reader, State monads, and improved configs.

Rewriting an Application

11 Lessons

Walk through rewriting an application using functional programming principles for better maintainability.

10.

Advanced FP Techniques

8 Lessons

Master the steps to advanced FP techniques, including DSLs, tagless final, and free monads.

11.

Conclusion

1 Lesson

Enhance your skills in applying TypeScript and fp-ts for functional programming, and future explorations.

12.

Appendix

1 Lesson

Solve problems in functional programming with advanced monads like Writer and These.

Course Author

Trusted by 1.4 million developers working at companies

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Evan Dunbar

ML Engineer

Carlos Matias La Borde

Software Developer

Souvik Kundu

Front-end Developer

Vinay Krishnaiah

Software Developer

Eric Downs

Musician/Entrepeneur

Kenan Eyvazov

DevOps Engineer

Anthony Walker

@_webarchitect_

Emma Bostian 🐞

@EmmaBostian

Hands-on Learning Powered by AI

See how Educative uses AI to make your learning more immersive than ever before.

Instant Code Feedback

Evaluate and debug your code with the click of a button. Get real-time feedback on test cases, including time and space complexity of your solutions.

AI-Powered Mock Interviews

Put your skills to the test in a simulated interview setting. Receive personalized feedback based on your performance. Available in Premium & Premium Plus plans.

Adaptive Learning

At various checkpoints throughout Educative courses, you will be prompted to take a quick assessment. Receive a condensed curriculum tailored to your strengths and skill gaps.

Explain with AI

Select any text within any Educative course, and get an instant explanation — without ever leaving your browser.

AI Code Mentor

AI Code Mentor helps you quickly identify errors in your code, learn from your mistakes, and nudge you in the right direction — just like a 1:1 tutor!