In this chapter, we’ll cover some of the most common types of values you’ll find in JavaScript code, and explain the corresponding ways to describe those types in TypeScript. This isn’t an …

We have cheat-sheets available for both type and interface, if you want a quick look at the important every-day syntax at a glance. Property Modifiers. Each property in an object type …

TypeScript takes tooling seriously, and that goes beyond completions and errors as you type. An editor that supports TypeScript can deliver “quick fixes” to automatically fix errors, refactorings …

TypeScript extends JavaScript by adding types to the language. TypeScript speeds up your development experience by catching errors and providing fixes before you even run your code.

TypeScript has two main kinds of files. .ts files are implementation files that contain types and executable code. These are the files that produce .js outputs, and are where you’d normally …

All of the common types in TypeScript. Creating Types from Types. Techniques to make more elegant types. More on Functions. How to provide types to functions in JavaScript. More on …

Enums are one of the few features TypeScript has which is not a type-level extension of JavaScript. Enums allow a developer to define a set of named constants. Using enums can …

All of the common types in TypeScript. Creating Types from Types. Techniques to make more elegant types. More on Functions. How to provide types to functions in JavaScript. More on …

All of the common types in TypeScript. Creating Types from Types. Techniques to make more elegant types. More on Functions. How to provide types to functions in JavaScript. More on …

TypeScript provides several utility types to facilitate common type transformations. These utilities are available globally. Awaited<Type> Released: 4.5. This type is meant to model operations …