Each property in an object type can specify a couple of things: the type, whether the property is optional, and whether the property can be written to. Much of the time, we’ll find ourselves …

TypeScript has a specific syntax for typing objects. Read more about objects in our JavaScript Objects chapter. Object types like this can also be written separately, and even be reused, …

In this tutorial, you'll learn about the TypeScript object type and how to write more accurate object type declarations.

Each property in an object type can specify a couple of things: the type, whether the property is optional, and whether the property can be written to. Much of the time, we'll find ourselves …

Sep 11, 2025 · TypeScript object types define the structure of objects by specifying property types, ensuring type safety and clarity when passing objects as function parameters.

Defining the structure of objects in TypeScript is made easier with object types. These allow you to specify an object's shape, including its properties and their types. Let's explore how to use …

Everything that isn't a primitive type is an object type. Object types are mutable and passed to functions by reference (i.e. modifying the value within a function modifies the original).

Learn about object types in TypeScript, including their syntax, usage, and best practices. Discover how to define and work with object types effectively.

In TypeScript, object types let you define the shape of an object. Alongside string, number and boolean, it's one of the most commonly used annotations in a TypeScript codebase.

Oct 19, 2025 · In TypeScript, an object type is a way to describe the structure of an object. It defines the names of the properties the object can have and the types of those properties. An …