Data Transfer Object (Dto) Type Wrapper in TypeScript.
The Dto wrapper turns a class type into a data transfer object type by removing all the methods from the type definition, thereby creating a type »
Error handling with an Either type in TypeScript.
type Result<T> = T | Error; const someFunc = (isError: boolean): Result<string> => { if (isError) { return new Error(); } return 'Success!'; }; const otherFunc »
TypeScript constructor parameters with public, private, and protected
A class constructor can automatically create and initialize class properties by using parameter property declarations. public class Foo { constructor(public bar: string, private baz: number, protected »
import m = require("m") vs import * as m from "m"
Image by Varsha Y S (Own work) [CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons If you think you understand »
String index signatures let us restrict the types that an object can contain.
The unrelated image shows the water system in our garden. Now, on to index types in TypeScript. Address defines an interface. AddressBook defines an interface with »