The aerogel-weight & dead-simple resource loader 🚚

This package provides a lightweight dynamic resource loader for web browsers.

Abstract

• Promise-based API ⏳
• Parallel by default, ordered when required ⚡
• Supports all <link> relations (preconnect, preload, stylesheet, etc.) 🔗
• Supports all <script> types (importmap, module, nomodule, etc.) 📃
• Zero dependencies 🗽

Prerequisites

• Node.js >= 20.0.0

Installation

npm install dopant --save

Usage

import dopant from 'dopant';

await dopant(
  '/assets/css/layout.css',
  '/assets/js/main.js',
  [
    '/assets/js/importmap.json',
    { type: 'importmap' },
  ],
  [
    '/assets/js/module.js',
    { defer: true, type: 'module' },
  ],
  [
    '/assets/webfonts/font.woff2',
    {
      as: 'font',
      rel: 'preload',
      type: 'font/woff2',
    },
  ],
);

API

dopant(...resources)

• ...resources {string | [string, Object]} Resource URL, w/wo extra attributes.
• Returns: Promise that resolves to a list of resolutions.

Behavior

• CSS files default to rel="stylesheet".
• If rel is provided, a <link> element is created.
• Otherwise, a <script> element is created.
• Scripts default to async: true (unless overridden or defer: true is set).

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For more details, please check tests in the repository.