Interface

The ICommand Interface

The core .NET interface that lets ViewModels expose actions to the View without any code-behind, forming the backbone of command-based interaction in MVVM.

The Postman Interface

A tour of Postman's main workspace layout — sidebar, request builder, response viewer, and console — and how each panel supports the request-response workflow.

Power Query Basics

Learn how Power Query lets you connect, shape, and clean data before it ever reaches your Power BI model, using a repeatable, no-code ETL workflow.

The Component Model Explained

How the WebAssembly Component Model lets modules written in different languages compose safely through typed interfaces instead of hand-rolled glue code.

interface vs type in TypeScript

Compare TypeScript's `interface` and `type` keywords — when each is preferable, and what each can and cannot express.

Struct and Interface Embedding in Go

Understand how Go uses struct and interface embedding to compose behavior instead of using inheritance.

Liskov Substitution and Interface Segregation

Understand why subtypes must honor their base type's contract and why fat interfaces should be split into focused ones.

Human Interface Guidelines and Theming

How to apply Apple's Human Interface Guidelines in SwiftUI apps using semantic colors, Dynamic Type, dark mode, and adaptive layout so apps feel native.

Interfaces in C#

Understand interfaces as pure behavioral contracts that any type can implement, including default interface methods, explicit implementation, and multiple inte…

Abstract Class vs Interface: When to Use Which?

Use an abstract class when related types share common state and partial implementation you want to reuse, and use an interface when you only need to declare a…