Posts

Learn TypeScript enums: how to declare them with numeric and string values, iterate them with Object.entries, and when to use literal unions in your code

Chapter one of the iOS with Swift series: declare variables with var, constants with let, and master Swift's basic data types, collections and mutability.

Chapter zero of the iOS with Swift series: install Xcode from the App Store, create your first Playground, and take a full tour of the Xcode interface.

Learn NestJS modules: building blocks, imports and exports, singletons and @Global, and why importing a module beats injecting providers.

A practical tour of the 44 ES6 (ECMAScript 2015) features you use every day: let and const, arrow functions, destructuring, classes, generators, modules, collections, Proxy and more, with runnable code examples

Learn mapped types and the never type in TypeScript: copy, transform and exclude keys, readonly/optional modifiers, and exhaustiveness

Learn the TypeScript satisfies operator: validate types without losing value inference, literal keys, and autocomplete in configurations

Learn the TypeScript infer keyword: extract types from ReturnType, implement Awaited, and transform snake_case keys to camelCase with conditional types

Learn Dependency Injection in NestJS: IOC container, @Injectable decorator, and provider types (useClass, useValue, useFactory, useExisting).

Learn how to access request and response in NestJS using @Req, @Res, @Headers, @Ip and @HttpCode decorators to control headers, status codes and more