What does [keyof T] do at the end of a type = {} declaration?
type Foo<T> = { // pretend we have a type definition for Q here }[keyof T]; What does the [keyof T] do at the end there? »
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 »