DEV Community

Cover image for Getting Started with TypeScript: A Comprehensive Guide

Getting Started with TypeScript: A Comprehensive Guide

Jack Pritom Soren on January 29, 2024

Introduction TypeScript is a superset of JavaScript that brings static typing to the language. Developed by Microsoft, it aims to enhanc...
Read full post
Collapse
 
jwhenry3 profile image
Justin Henry •

Another unit of information that is very helpful is Union Typing, which allows you to merge types without dealing with inheritance.

export declare type Truck = { extendedCab: boolean };
export declare type Car = { trunkSize: 'small' | 'medium' | 'large' };
export declare type Vehicle = Truck | Car; 
// can be one or the other

export declare type NameLike = { name: string };
export declare type AgeLike = { age: number };
export declare type PersonLike = NameLike & PersonLike; 
// requires both fields
Enter fullscreen mode Exit fullscreen mode
Collapse
 
jps27cse profile image
Jack Pritom Soren •

Thank you so much!

Collapse
 
jangelodev profile image
João Angelo •

Hi Jack Pritom Soren !
Thanks for sharing