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Mastering TypeScript

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Before Getting Started

Why Choose TypeScript and This Course?Prerequisites

Introduction

Introduction to TypeScript Transpiling Strong Typing and Basic Types Inferred Typing and Duck Typing Function Signatures and the void Keyword Third Party Libraries and Declaration Files Summary Quiz: TypeScript Basics

Exploring the Type System

The Basic TypeScript Type System The any Type and Explicit Casting The let and const Keywords Union Types, Type Guards, and Aliases Enums Exploring Primitive Types Conditional Expressions and Optional Chaining Nullish Coalescing and Null or Undefined Operands Definite Assignment Object and Unknown Types The never Type and switch Statements Object Spread Tuples Functions Function Callbacks in JavaScript Function Signatures and Function Overrides in TypeScript Summary Quiz: Exploring the Type System

Challenge: TypeScript Basics

Challenge: TypeScript Basics Solution: TypeScript Basics

Interfaces in TypeScript

Introduction to Interfaces Optional Properties and Prefixing Interface Names Weak Types in Interfaces The in and keyof Operators Summary Quiz: Interfaces in TypeScript

Classes in TypeScript

Introduction to Classes Classes and Interfaces Class Constructors and Modifiers JavaScript Private Fields and TypeScript Constructor Parameter Properties and Property Accessors Static Functions and Namespaces Summary Quiz: Classes in TypeScript

Inheritance in TypeScript

Introduction to Inheritance The super Function and Function Overriding Protected and Abstract Classes Abstract Class Methods The instanceof Operator Interfaces Extending Classes Summary Quiz: Inheritance in TypeScript

Modules in TypeScript

Modules in TypeScript Multiple Exports and Namespaces Summary Quiz: Modules in TypeScript

Challenge: Interfaces, Classes, Inheritance, and Modules

Challenge: Interfaces, Classes, Inheritance, and Modules Solution: Interfaces, Classes, Inheritance, and Modules

Generics in TypeScript

Introduction to Generics Generic Syntax Constraining Generic Types with Examples Limitations of Generic Code: Interfaces and Constrained Types Using Generics to Constrain Types Summary Quiz: Generics

Advanced Type Inferences in TypeScript

Introduction to Advanced Type Inferences Mapped Types Conditional Types and Chaining Distributed Conditional Types and the Conditional Type Inference Type Inference from Function Signatures and Arrays Summary Quiz: Advanced Type Inferences

Challenge: Generics and Advanced Type Inferences

Challenge: Generics and Advanced Type Inferences Solution: Generics and Advanced Type Inferences

Asynchronous Language Features

Introduction to Asynchronous Language Features Callbacks Promises Promise Syntax Returning Values from Promises Async and Await Callbacks vs. Promises vs. Async Summary Quiz: Asynchronous Language Features

Decorators

What Are Decorators?Types of Decorators Class and Property Decorators Method and Parameter Decorators Decorators Metadata Summary Quiz: Decorators

Challenge: Asynchronous Language Features and Decorators

Challenge: Asynchronous Language Features and Decorators Solution: Asynchronous Language Features and Decorators

Integration with JavaScript

Enhancing JavaScript Libraries with TypeScript Using Declaration Files in TypeScript Finding and Writing Declaration Files Creating a Namespace in TypeScript Declaration Files Understanding TypeScript Declaration Files Integration Compiler Options Summary Quiz: Integration with JavaScript

Strict Compiler Options

Introduction to Strict Compiler Options Nested Configuration Fixing Uninitialized Variable Errors in TypeScript JavaScript's bind, call, and apply Functions The no Compiler Options Summary Quiz: Strict Compiler Options

Challenge: Strict Compiler Options

Challenge: Strict Compiler Options Solution: Strict Compiler Options

Using Observables to Transform Data

Introduction to Observables

The pipe and map Functions

Avoid Swallowing Values

Observable Errors

Observables Returning Observables

Using mergeMap and concatMap Functions

The forkJoin Function

Observable Subject

Quiz: Using Observables to Transform Data

Challenge: Using Observables to Transform Data

Challenge: Using Observables to Transform Data Solution: Using Observables to Transform Data

Test-Driven Development

Introduction to Test-Driven Development Jest: A Unit Testing Framework Grouping, Forcing, and Skipping Tests Matchers Test Setup and Teardown Data-driven Tests Jest Mocks and Spies Asynchronous Tests HTML-Based Tests Summary Quiz: Test-Driven Development Appendix: Test-Driven Development

Challenge: Test-Driven Development

Challenge: Test-Driven Development Solution: Test-Driven Development

Angular

Introduction to Angular Application Structure and Modules Angular Material Components An Angular Application Angular DOM Events Angular EventEmitter and Services Angular Dependency Injection and Child Components Understanding Two-Way Data Binding and Reactive Forms in Angular Unit Testing Angular Components Unit Testing Forms and Events Reacting to Domain Events Angular Application Summary Quiz: Angular Appendix: Angular

Challenge: Angular

Challenge: Angular Solution: Angular

React

The Story of React and TypeScript JSX in TypeScript and React Components React Props and Event Handling Managing the Component State in React Building a Product List with Detailed Descriptions Exploring DetailView and App Components Gathering User Input for Task Completion React Application Summary Quiz: React Appendix: React

Challenge: React

Challenge: React Solution: React

Vue

Building Vue Applications with TypeScript Integration Component Structure and Child Components with Props Component State and Events Computed Properties, Conditional Statements, and Arrays Building a Shopping Cart Application with Vue Binding the Shopping Cart Collection to the App Component Component Details: ShoppingCart and Checkout Initializing Input Controls for Proper Label Display Checkout and Item Rendering Vue Application Summary Quiz: Vue Appendix: Vue Setup on a Local Machine

Node and Express

Introduction to Node and Express Web Development Modularizing Routes in Express Using the Router Object Dynamic Configuration with the Config Library Using Handlebars Template Engine in Express Handling Form Submission Managing User Authentication and Sessions Node and Express Application Summary Quiz: Node and Express Appendix: Express Setup on a Local Machine

An AWS Serverless API

Introduction to AWS Serverless Application Model Initializing and Deploying an AWS SAM Application Building an API with AWS SAM CLI and DynamoDB Tables DynamoDB Interactions with NoSQL Workbench API Endpoints and Database Mapping in TypeScript AWS Application Building a POST API Endpoint with AWS Lambda and TypeScript Handling GET Requests with Path Parameters in AWS Lambda Building a TypeScript Lambda Function for Retrieving Products Summary Quiz: AWS Serverless API

Micro Front-Ends

Building Micro Front-Ends Design Concepts and Front-End Mechanisms Communication Mechanisms and Domain Events Communication Mechanisms Building Modules and Module Typing Updating the React Application React Domain Events Updating the Vue Application Angular Micro Front-End Event Listening and Updates in Angular Summary Quiz: Micro Front-Ends

Conclusion

Introduction to Observables

Get an overview of the concept of observables.

We'll cover the following

Overview
- Observables

One of the most intriguing, somewhat difficult, but fun parts of JavaScript programming is based around the handling of events. Whenever we issue an asynchronous call, we are essentially waiting for an event to occur that will trigger our callback processing. We generally have no control over how long an asynchronous call might take, especially if this call is to a server somewhere via an API call.

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