@jsenv/core

Overview

Jsenv is a suite of tools for JavaScript projects that prioritizes standards and simplicity, making it ideal for both beginners and those who need straightforward tools.

Installation

npm install --save-dev @jsenv/core

Compatibility: Tested on Mac, Windows, and Linux with Node.js 20. Other environments are not officially tested.

Documentation

For comprehensive documentation, see the full user documentation.

Basic Usage

Start a development server:

import { startDevServer } from "@jsenv/core";

await startDevServer({
  sourceDirectoryUrl: import.meta.resolve("./"),
});

Core Features

@jsenv/core provides four main tools:

1. Dev Server: Serves source files with live reloading to facilitate development
2. Build: Optimizes source files into a specified directory for production
3. Build Server: Serves the built files, allowing for testing and verifying the production build
4. Test Runner: Runs test files concurrently to ensure code reliability

Key Advantages

• Standards-first approach: Built on web standards rather than custom abstractions
• Robust versioning: Avoids cascading hash changes during builds
• Broad browser compatibility: Works with modern and older browsers
• Isolated testing: Prevents cross-test contamination
• Simple API: Designed for clarity and ease of use

Quick Start

The easiest way to try jsenv is with the CLI:

npx @jsenv/cli

The CLI provides templates for web applications, React projects, and Node.js packages to get you started quickly.

Read more in @jsenv/cli.