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by Steve Fenton
Pro TypeScript
Cover
Title
Copyright
Dedication
Contents at a Glance
Contents
About the Author
Acknowledgments
Introduction
Chapter 1: TypeScript Language Features
JavaScript Is Valid TypeScript
Variables
Types
Type Annotations
Primitive Types
Arrays
Enumerations
Type Assertions
Operators
Increment and Decrement
Binary Operators
Bitwise Operators
Logical Operators
Type Operators
Functions
Optional Parameters
Default Parameters
Rest Parameters
Overloads
Specialized Overload Signatures
Arrow Functions
Interfaces
Classes
Constructors
Access Modifiers
Properties and Methods
Class Heritage
Scope
Type Information
Modules
Internal Modules
External Modules
Module Loading
Export Assignments
Module Merging
Generics
Generic Functions
Generic Interfaces
Generic Classes
Type Constraints
TypeScript Futures
Summary
Chapter 2: The Type System
Type Systems
Optional Static Types
Structural Typing
Type Erasure
Type Inference
Best Common Type
Contextual Types
Widened Types
When to Annotate
Duplicate Identifiers
Type Checking
Ambient Declarations
Declaration Files
Definitely Typed
Summary
Key Points
Chapter 3: Object Orientation in TypeScript
Object Orientation in TypeScript
Open Recursion
Encapsulation
Delegation
Polymorphism
SOLID Principles
The Single Responsibility Principle (SRP)
The Open–Closed Principle (OCP)
The Liskov Substitution Principle (LSP)
The Interface Segregation Principle (ISP)
The Dependency Inversion Principle (DIP)
Design Patterns
The Strategy Pattern
The Abstract Factory Pattern
Practical Example
Mixins
TypeScript Mixins
When to Use Mixins
Restrictions
Summary
Key Points
Chapter 4: Understanding the Runtime
Runtime Features
Scope
Variable Hoisting
Callbacks
Passing Functions as Arguments
Events
TypeScript’s Custom-Event Mechanism
Event Phases
Extending Objects
Extending the Prototype
Sealing Objects
Alternatives to Extending
Summary
Key Points
Chapter 5: Running TypeScript in a Browser
The Anatomy of a Web Browser
Reflows
The Interesting Components
The Document Object Model
Finding Elements
Changing Elements
Events
Frameworks and Libraries
Network
AJAX
WebSockets
Real-Time Communications
Storage
Session Storage
Local Storage
Storage Restrictions
IndexedDB
Storage Roundup
Geolocation
Sensors
Battery Status
Proximity Sensor
Light Sensor
Motion and Orientation
Temperature, Noise, and Humidity
Sensor Roundup
Web Workers
Packaging Your Program
Summary
Key Points
Chapter 6: Running TypeScript on a Server
Install Node
Creating a New Project
Simple Node Program
Request Information
Using Express to Write Applications
Simple Express Program
Multiple Routes
Handling Errors
Express Book Project
Summary
Key Points
Chapter 7: Exceptions, Memory, and Performance
Exceptions
Throwing Exceptions
Exception Handling
Memory
Releasing Resources
Garbage Collection
Performance
Summary
Key Points
Chapter 8: Using JavaScript Libraries
Creating Type Definitions
Creating a TypeScript Application with Knockout
Silencing the Compiler
Iteratively Improving Type Definitions
Converting a JavaScript Application
Summary
Key Points
Chapter 9: Automated Testing
Framework Choices
Testing with Jasmine
Installing Jasmine
The First Specification
Driving the Implementation
Refactoring
Isolating Dependencies
Summary
Key Points
Appendix 1: JavaScript Quick Reference
Variables
Functions
Conditional Statements
Loops
Appendix 2: TypeScript Compiler
Getting Help
Common Flags
Module Kind
ECMAScript Target Version
Generate Declarations
Remove Comments
Combined Output
No Implicit Any
Appendix 3: Bitwise Flags
Bit Flags Explained
Bitwise Operations
Appendix 4: Coding Katas
Performing a Kata
The Fizz Buzz Kata
Requirement 1
Requirement 2
Requirement 3
Requirement 4
Requirement 5
Fizz Buzz Summary
Summary
Index
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