TypeScript Quickly
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TypeScript is JavaScript with an important upgrade! By adding a strong type system to JavaScript, TypeScript can help you eliminate entire categories of runtime errors. In TypeScript Quickly, you’ll learn to build rock-solid apps through practical examples and hands-on projects under the expert instruction of experienced web developers Yakov Fain and Anton Moiseev.Absolutely great book that goes beyond the official documentation and makes some great cases for OOP and Typescript.
Table of Contents takes you straight to the bookdetailed table of contents
Part 1: Mastering the TypeScript syntax
1 Getting familiar with TypeScript
1.1 A little bit of a JavaScript history
1.2 Why program in TypeScript
1.3 Typical TypeScript workflows
1.4 Using TypeScript compiler
1.5 Getting familiar with Visual Studio Code
1.6 Summary
2 Basic and custom types
2.1 Declaring variables with types
2.1.1 Basic type annotations
2.1.2 Types in function declarations
2.1.3 The union type
2.2 Defining custom types
2.2.1 Using the type keyword
2.2.2 Using classes as custom types
2.2.3 Using interfaces as custom types
2.2.4 Structural vs nominal type systems
2.2.5 Unions of custom types
2.3 Types any, unknown, and user-defined type guards
2.4 A mini project
2.5 Summary
3 Object-oriented programming with classes and interfaces
3.1 Working with classes
3.1.1 Getting familiar with class inheritance
3.1.2 Access modifiers public, private, protected
3.1.3 Static variables and a singleton example
3.1.4 The method super() and the keyword super
3.1.5 Abstract classes
3.1.6 Method overloading
3.2 Working with interfaces
3.2.1 Enforcing the contract
3.2.2 Extending interfaces
3.2.3 Programming to interfaces
3.3 Summary
4 Enums and Generics
4.1 Enums
4.1.1 String enums
4.1.2 const enums
4.2 Generics
4.2.1 Understanding generics
4.2.2 Creating your own generic types
4.2.3 Creating generic functions
4.3 Summary
5 Decorators and advanced types
5.1 Decorators
5.1.1 Creating class decorators
5.1.2 Creating method decorators
5.2 Mapped types
5.2.1 The mapped type Readonly
5.2.2 Declaring your own mapped types
5.2.3 Other built-in mapped types
5.3 Conditional types
5.3.1 The keyword infer
5.4 Summary
6 Tooling
6.1 Source maps
6.2 The linter TSLint
6.3 Bundling code with Webpack
6.3.1 Bundling JavaScript with Webpack
6.3.2 Bundling TypeScript with Webpack
6.4 Using the Babel transpiler
6.4.1 Using Babel with JavaScript
6.4.2 Using Babel with TypeScript
6.4.3 Using Babel with TypeScript and Webpack
6.5 Tools to watch
6.5.1 Deno
6.5.2 ncc
6.6 Summary
7 Using TypeScript and JavaScript in the same project
7.1 Type definition files
7.1.1 Getting familiar with type definition files
7.1.2 Type definition files and IDEs
7.1.3 Shims and type definitions
7.1.4 Creating your own type definition files
7.2 A sample TypeScript app that uses JavaScript libraries
7.3 Introducing TypeScript in your JavaScript project
7.4 Summary
Part 2: Applying TypeScript in a blockchain app
8 Developing your own blockchain app
8.1 Blockchain 101
8.1.1 Hashing functions
8.1.2 What a block is made out of
8.1.3 What’s block mining
8.1.4 A mini project with hash and nonce
8.2 Developing your first blockchain
8.2.1 The project structure
8.2.2 Creating a primitive blockchain
8.2.3 Creating a blockchain with the proof of work
8.3 Summary
9 Developing a browser-based blockchain node
9.1 Running the blockchain web app
9.1.1 The project structure
9.1.2 Deploying the app using npm scripts
9.1.3 Working with the blockchain web app
9.2 The web client
9.3 Mining blocks
9.4 Using crypto APIs for hash generation
9.5 The standalone blockchain client
9.6 Debugging TypeScript in the browser
9.7 Summary
10 Client-server communications using Node.js, TypeScript, and WebSockets
10.1 Resolving conflicts using the longest chain rule
10.2 Adding a server to the blockchain
10.3 The project structure
10.4 Configuration files of the project
10.4.1 Configuring the TypeScript compilation
10.4.2 What’s in package.json
10.4.3 Configuring nodemon
10.4.4 Running the blockchain app
10.5 A brief introduction to WebSockets
10.5.1 Comparing HTTP and WebSocket protocols
10.5.2 Pushing data from a Node server to a plain client
10.6 Reviewing notifications workflows
10.6.1 Reviewing the server’s code
10.6.3 Reviewing the client’s code
10.7 Summary
11 Developing Angular apps with TypeScript
11.1 Generating and running a new app with Angular CLI
11.2 Reviewing the generated app
11.3 Angular services and dependency injection
11.4 An app with the ProductService injection
11.5 Program to abstractions in TypeScript
11.6 Getting started with HTTP requests
11.7 Getting started with forms
11.8 Router basics
11.9 Summary
12 Developing the blockchain client in Angular
12.1 Reviewing AppComponent
12.2 Reviewing TransactionFormComponent
12.3 Reviewing the BlockComponent
12.4 Reviewing services
12.5 Summary
13 Developing React.js apps with TypeScript
13.1 Developing the simplest web page with React
13.2 Generating and running a new app with create-react-app
13.3 Managing the component’s state
13.3.1 Adding state to a class-based component
13.3.2 Using hooks for managing state in functional components
13.4 Developing a weather app
13.4.1 Adding a state hook to the App component
13.4.2 Fetching data with useEffect hook to the App component
13.4.3 Using props
13.4.4 How a child component can pass data to its parent
13.5 What’s Virtual DOM
13.6 Summary
14 Developing the blockchain client in React.js
14.1 Starting the client and the messaging server
14.2 What changed in the lib directory
14.3 The smart component App
14.3.1 The user wants to add a transaction
14.3.2 The user wants to generate a new block
14.3.3 Explaining the useEffect() hooks
14.3.4 Memoization with the useCallback() hook
14.4 The presentation component TransactionForm
14.5 The presentation component PendingTransactionPanel
14.6 The presentation components BlockPanel and BlockComponent
14.7 Summary
15 An introduction to the development of the Vue.js apps with TypeScript
16 Developing the blockchain client in Vue.js
Appendixes
Appendix A: Modern JavaScript
A.1 How to run the code samples
A.2 The keywords let and const
A.2.1 The var keyword and hoisting
A.2.2 Block scoping with let and const
A.3 Template literals
A.4 Optional parameters and default values
A.5 Arrow function expressions
A.6 The rest operator
A.7 The spread operator
A.8 Destructuring
A.8.1 Destructuring objects
A.8.2 Destructuring arrays
A.9 Classes and inheritance
A.9.1 Constructors
A.9.2 The super keyword and the super function
A.9.3 Static class members
A.10 Asynchronous processing
A.10.1 A callback hell
A.10.2 Promises
A.10.3 Resolving several promises at once
A.10.async-await
A.11 Modules
A.11.1 Imports and exports
A.12 Transpilers
About the Technology
TypeScript is an extension of JavaScript that includes key language features such as optional static typing, compile-time error catching, and auto-complete. By specifying types and type annotations, your code becomes much easier to interpret, which improves productivity and team development. In particular, TypeScript makes complex applications like SPAs much easier to maintain and extend. What’s more, you can use TypeScript with any JavaScript library, so you get full access to new features. And since it compiles to clean JavaScript code, you can run TypeScript on all major browsers!About the book
TypeScript Quickly teaches you to build outstanding modern apps with Typescript! To start, you’ll master the TypeScript syntax, preparing you to delve into the practical examples that follow. Thanks to the authors’ easy-to-digest style, you’ll effortlessly learn about types, object-oriented programming with classes and interfaces, and using TypeScript with JavaScript libraries. You’ll discover TypeScript’s excellent tooling as you explore code-quality improvement with TSLint, debugging with source maps, unit testing, and more.
As you progress through this code-centric guide, you’ll dive into advanced features including decorators, namespaces, and dynamic imports. To clinch your new knowledge, you’ll go hands-on as you develop several different blockchain apps, step by step.
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