Downloading Getting type declarations in TypeScript 2.0 and above requires no tools apart from npm. As an example

Overloads and Callbacks Don’t write separate overloads that differ only on callback arity:

Symbol.toPrimitive A method that converts an object to a corresponding primitive value. Called by the ToPrimitive

Install ASP.NET Core and TypeScript First, install ASP.NET Core if you need

Using tsconfig.json By invoking tsc with no input files, in which case the compiler searches for the tsconfig.json file starting

Reusable Types (Interfaces) Documentation When specifying a greeting, you must pass a

Enum A helpful addition to the standard set of datatypes from JavaScript is the enum. As in languages like C#, an enum is a way

Add example code Type the following code into app.ts. function sayHello()

ES6 Modules TypeScript 1.5 supports ECMAScript 6 (ES6) modules. ES6 modules are effectively TypeScript external modules with a new syntax:

// Type definitions for [~THE LIBRARY NAME~] [~OPTIONAL VERSION NUMBER~] // Project: [~THE PROJECT NAME~] // Definitions by: [~YOUR