Environment

Environment Variables in Batch

Understand how Windows Batch scripts create, read, scope, and persist environment variables, including the tricky topic of delayed expansion.

Teams Toolkit and Dev Environment Setup

Setting up a local development environment for building Microsoft Teams apps using Teams Toolkit, the Teams JS SDK, and app manifests.

Configuration and Environments

How ASP.NET Core layers configuration sources and switches behavior between Development, Staging, and Production environments.

The pm API: Request, Response, and Environment

A tour of Postman's core pm object — pm.request, pm.response, and pm.environment — the JavaScript API used in both pre-request and test scripts.

Environment Variables and Configuration

Learn how Cypress resolves environment variables across config files, OS variables, and the CLI, and how fixtures supply deterministic test data.

Registry and Environment

Learn how PowerShell exposes the Windows Registry and environment variables as navigable drives, and how to safely read and modify both.

Setting Up the MAUI Environment

A practical walkthrough of installing the .NET SDK, the MAUI workload, and the Android, iOS, and Windows prerequisites needed to build MAUI apps.

The Apex Development Environment

A tour of the tools used to write, test, and deploy Apex code, from VS Code and Salesforce CLI to Developer Console, sandboxes, and scratch orgs.

Setting Up a COBOL Environment

How to install a free COBOL compiler like GnuCOBOL, choose an editor, and prepare your machine to write and run COBOL programs locally.

Environment Variables in Next.js

How Next.js loads .env files, the difference between server-only and NEXT_PUBLIC_-prefixed browser-exposed variables, and per-environment configuration.

Setting Up a JavaScript Environment

Step-by-step guidance on installing Node.js, choosing an editor, and running your first JavaScript file from the command line.

Setting Up a TypeScript Environment

A practical guide to installing TypeScript, initializing a project with tsconfig.json, and compiling and running your first .ts file.

Setting Up a Go Environment

Step-by-step guide to installing Go, understanding modules, and running your first program.

Setting Up a Rust Environment

Step-by-step guide to installing Rust with rustup and creating your first Cargo project.

Setting Up a Kotlin Environment

A practical guide to installing Kotlin and running your first program using IntelliJ IDEA, the command-line compiler, or an online playground.

Setting Up a Swift Environment

Learn how to install Xcode, Swift Playgrounds, the REPL, Swift Package Manager, and Linux toolchains to start coding in Swift.

Setting Up a Web Development Environment

A practical guide to installing the editor, browser, and tools needed to start writing HTML and CSS.

Setting Up a React Environment

Learn the practical steps to scaffold a modern React project using Vite and start a local development server.

Environment Variables and Configuration

Learn how to manage configuration and secrets in Node.js apps using environment variables and dotenv.

Setting Up a Node.js Environment

Install Node.js, choose an LTS version, and configure a basic project structure ready for development.

Environment Variables and Configuration

Learn how to configure containerized applications using environment variables, .env files, and Dockerfile defaults without rebuilding images.

@EnvironmentObject Basics

Learn how @EnvironmentObject injects a shared model into the SwiftUI view hierarchy so deeply nested views can access it without manual parameter passing.

Environment Variables and PATH

Understand how environment variables are set, exported, and inherited by child processes, and how PATH determines which executable a bare command name resolves…