Table of Contents

• The Concise TypeScript Book
  • Translations
  • Downloads and website
  • Table of Contents
  • Introduction
  • About the Author
  • TypeScript Introduction
    • What is TypeScript?
    • Why TypeScript?
    • TypeScript and JavaScript
    • TypeScript Code Generation
    • Modern JavaScript Now (Downleveling)
  • Getting Started With TypeScript
    • Installation
    • Configuration
    • TypeScript Configuration File
      • target
      • lib
      • strict
      • module
      • moduleResolution
      • esModuleInterop
      • jsx
      • skipLibCheck
      • files
      • include
      • exclude
    • importHelpers
    • Migration to TypeScript Advice
  • Exploring the Type System
    • The TypeScript Language Service
    • Structural Typing
    • TypeScript Fundamental Comparison Rules
    • Types as Sets
    • Assign a type: Type Declarations and Type Assertions
      • Type Declaration
      • Type Assertion
      • Ambient Declarations
    • Property Checking and Excess Property Checking
    • Weak Types
    • Strict Object Literal Checking (Freshness)
    • Type Inference
    • More Advanced Inferences
    • Type Widening
    • Const
      • Const Modifier on Type Parameters
      • Const assertion
    • Explicit Type Annotation
    • Type Narrowing
      • Conditions
      • Throwing or returning
      • Discriminated Union
      • User-Defined Type Guards
  • Primitive Types
    • string
    • boolean
    • number
    • bigInt
    • Symbol
    • null and undefined
    • Array
    • any
  • Type Annotations
  • Optional Properties
  • Readonly Properties
  • Index Signatures
  • Extending Types
  • Literal Types
  • Literal Inference
  • strictNullChecks
  • Enums
    • Numeric enums
    • String enums
    • Constant enums
    • Reverse mapping
    • Ambient enums
    • Computed and constant members
  • Narrowing
    • typeof type guards
    • Truthiness narrowing
    • Equality narrowing
    • In Operator narrowing
    • instanceof narrowing
  • Assignments
  • Control Flow Analysis
  • Type Predicates
  • Discriminated Unions
  • The never Type
  • Exhaustiveness checking
  • Object Types
  • Tuple Type (Anonymous)
  • Named Tuple Type (Labeled)
  • Fixed Length Tuple
  • Union Type
  • Intersection Types
  • Type Indexing
  • Type from Value
  • Type from Func Return
  • Type from Module
  • Mapped Types
  • Mapped Type Modifiers
  • Conditional Types
  • Distributive Conditional Types
  • infer Type Inference in Conditional Types
  • Predefined Conditional Types
  • Template Union Types
  • Any type
  • Unknown type
  • Void type
  • Never type
  • Interface and Type
    • Common Syntax
    • Basic Types
    • Objects and Interfaces
    • Union and Intersection Types
  • Built-in Type Primitives
  • Common Built-in JS Objects
  • Overloads
  • Merging and Extension
  • Differences between Type and Interface
  • Class
    • Class Common Syntax
    • Constructor
    • Private and Protected Constructors
    • Access Modifiers
    • Get and Set
    • Auto-Accessors in Classes
    • this
    • Parameter Properties
    • Abstract Classes
    • With Generics
    • Decorators
      • Class Decorators
      • Property Decorator
      • Method Decorator
      • Getter and Setter Decorators
      • Decorator Metadata
    • Inheritance
    • Statics
    • Property initialization
    • Method overloading
  • Generics
    • Generic Type
    • Generic Classes
    • Generic Constraints
    • Generic contextual narrowing
  • Erased Structural Types
  • Namespacing
  • Symbols
  • Triple-Slash Directives
  • Type Manipulation
    • Creating Types from Types
    • Indexed Access Types
    • Utility Types
      • Awaited<T>
      • Partial<T>
      • Required<T>
      • Readonly<T>
      • Record<K, T>
      • Pick<T, K>
      • Omit<T, K>
      • Exclude<T, U>
      • Extract<T, U>
      • NonNullable<T>
      • Parameters<T>
      • ConstructorParameters<T>
      • ReturnType<T>
      • InstanceType<T>
      • ThisParameterType<T>
      • OmitThisParameter<T>
      • ThisType<T>
      • Uppercase<T>
      • Lowercase<T>
      • Capitalize<T>
      • Uncapitalize<T>
      • NoInfer<T>
  • Others
    • Errors and Exception Handling
    • Mixin classes
    • Asynchronous Language Features
    • Iterators and Generators
    • TsDocs JSDoc Reference
    • @types
    • JSX
    • ES6 Modules
    • ES7 Exponentiation Operator
    • The for-await-of Statement
    • New target meta-property
    • Dynamic Import Expressions
    • “tsc –watch”
    • Non-null Assertion Operator
    • Defaulted declarations
    • Optional Chaining
    • Nullish coalescing operator
    • Template Literal Types
    • Function overloading
    • Recursive Types
    • Recursive Conditional Types
    • ECMAScript Module Support in Node
    • Assertion Functions
    • Variadic Tuple Types
    • Boxed types
    • Covariance and Contravariance in TypeScript
      • Optional Variance Annotations for Type Parameters
    • Template String Pattern Index Signatures
    • The satisfies Operator
    • Type-Only Imports and Export
    • using declaration and Explicit Resource Management
      • await using declaration
    • Import Attributes