Module Augmentation Basics

Misplaced @ts-ignore Directive

JSDoc @typedef Property Syntax

Module Augmentation Basics

Type-Checking JS with allowJs and checkJs

Generating Declaration Files Automatically

Writing Declaration Files for Untyped Libraries

Installing @types from DefinitelyTyped

Ambient Modules and Global Declarations

The declare Keyword for Ambient Declarations

What Declaration Files Are

esModuleInterop for JS Interop

typeRoots and types Configuration

TypeScript Check Comments Explained

Gradual Migration to TypeScript

JSDoc Type Annotations in JavaScript

@ts-check and @ts-nocheck

Purpose of Declaration Files

Installing @types Packages

Gradual JS to TS Migration

declare namespace Usage

@param and @type Precision

Ambient Variable and Function Declarations

JSDoc Type Annotations

Automatic Type Acquisition

@ts-ignore vs @ts-expect-error

Typing the global Object

Declaring Untyped Modules

The declare Keyword

Overloaded Signatures in .d.ts

JSDoc @param and @returns

UMD Global Declaration Syntax

Implicit any from JS Import

JSDoc @type Annotation

Triple-Slash Reference Syntax

declare namespace Members

Ambient const enum

Ambient Class Shape

Installing @types Packages

Ambient Variable with declare

Ambient Function Signature

Value Inside a .d.ts File

Installing @types Packages

Triple-Slash Directives

The declare Keyword

Structure of an @types Package

Wildcard Module Declarations

JSDoc for Typing JavaScript

@ts-ignore vs @ts-expect-error

Ambient Global Variables

Gradual JS to TS Migration

Handling Implicit any

Ambient Functions

@ts-check and @ts-nocheck

Global Augmentation with declare global