Overview

This book serves as a succinct guide on ReScript, a functional language for building web applications. Using examples of ReScript language features along with explanations of fundamental concepts in functional programming, this book will show web developers with a background in JavaScript how to effectively use ReScript to its full potential. In Introducing ReScript, you'll learn how to use features in ReScript that  JavaScript lacks, such as type inference, null-safety, algebraic data types, pattern matching, and more. Along the way, you'll pick up functional programming concepts like immutability and higher-order functions. You'll also gain a sense of how ReScript works under the hood and how to leverage interoperability between ReScript and JavaScript.   Whether you're a web developer interested in dabbling with functional programming or you just want to learn how to write safer and cleaner code for web applications, this book is a great way for you to get started with ReScript. What You Will Learn Use ReScript to write clean, safe, and elegant software Understand the features of ReScript that set it apart from JavaScript, such as type inference, null-safety, and algebraic data types Explore functional programming concepts like immutabhigher-orderr order functions, and pattern matching Use popular JavaScript libraries and frameworks in your ReScript code and integrate ReScript code into JavaScript codebases Who This Book Is For Web developers that want a strictly typed, safer alternative to JavaScript, as well as web developers interested in learning functional programming and leveraging the elegant and powerful functional features in ReScript.

Full Product Details

Author:   Danny Yang
Publisher:   APress
Imprint:   APress
Edition:   1st ed.
Weight:   0.444kg
ISBN:  

9781484288870

ISBN 10:   1484288874
Pages:   263
Publication Date:   28 December 2022
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Paperback
Publisher's Status:   Active
Availability:   Manufactured on demand  
We will order this item for you from a manufactured on demand supplier.

Table of Contents

Chapter 1, IntroChapter Goal: Learn what functional programming is, and the background of the ReScript language● What is ReScript?● Why should you learn ReScript?● What is functional programming?● Why should you learn functional programming?Chapter 2, BasicsChapter Goal: Learn the basic features of ReScript, like expressions and operators- Development environment setup- Hello, World in ReScript- Expressions- Operators- If expressions- Let expressions- Printing and debuggingChapter 3, FunctionsChapter Goal: learn how functions work in ReScript- Defining a function- Applying a function- Polymorphic functions- Anonymous functionsChapter 4, Lists and ArraysChapter Goal: learn the data structures for ordered data in ReScript, learn about immutable data structures- Building a list- Accessing a list- Mutating a list- Arrays and mutability- IterationChapter 5, Records and ObjectsChapter Goal: learn the ways to represent composite data types in ReScript- Records- ObjectsChapter 6, Pattern Matching and DestructuringChapter Goal: learn one of ReScript's most powerful features and how to work with the shape of your data- Pattern matching/switch- Destructuring with let- Destructuring in functionsChapter 7, Algebraic Data TypesChapter Goal: learn how represent complex data in ReScript's type system- Variants- Polymorphic Variants- Options- TuplesChapter 8, Higher Order ProgrammingChapter Goal:- Higher order functions- Map- Filter- Reduce- Generalizing to other data structures- Piping- CurryingChapter 9, ModulesChapter Goal: Introduce modules in ReScript, and how they can be used for higher order programming- What are modules- Scope/visibility- Signature- Import/Export- FunctorsChapter 10, Using ReScript in ProductionChapter Goal: learn about ReScript's interoperability with JavaScript- Calling ReScript from JavaScript- Calling JavaScript from ReScript- Embedding JavaScript in ReScript- Working with DOM- Working with JSON- Runtime representation

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Author Information

Danny Yang is a professional software engineer at Meta working on infrastructure for WhatsApp. He has previously worked on Facebook Messenger, including the web interface which was written in ReScript. His technical interests include functional programming, compilers, and data visualization, which he writes about on his blog. 

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