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module-js

Create JavaScript extension modules with module.json and IIFE-wrapped main.js for WebToApp.

5.5k|794|Updated Nov 26, 2025
Search Tags:#javascript#extension#plugin-development#webview#webtoapp#module-market
One-click install
npx skills add https://github.com/shiaho777/web-to-app --skill module-js
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: module-js
Source: https://github.com/shiaho777/web-to-app/tree/main/app/src/main/assets/skills/module-js
Command: npx skills add https://github.com/shiaho777/web-to-app --skill module-js

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Developers need a straightforward way to add small, JavaScript-only extensions to WebToApp modules, avoiding heavier native changes.

Core Features & Use Cases

  • Lightweight, JS-only module extensions that run inside the WebView.
  • Simple manifest-driven integration with module.json and a wrapped main.js.
  • Use cases include UI enhancements, page-level utilities, and small feature augmentations.

Quick Start

Create a new JavaScript extension by implementing main.js (wrapped in an IIFE) and a module.json manifest, then register and publish it to the Module Market.

Frequently Asked Questions about module-js

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I build a JavaScript extension for WebToApp's Module Market?▼

To build a JavaScript extension for WebToApp, create a minimal module.json manifest and an IIFE-wrapped main.js file, then register and publish the package to the Module Market for integration.

What is the required file structure for a WebView JavaScript module?▼

A WebView JavaScript module requires a module.json manifest and a wrapped main.js. It optionally supports a style.css file, plus scripts, references, and assets directories for resource referencing and deterministic tasks.

Can I add CSS styles to my WebToApp JS extension module?▼

Yes, you can include CSS styles in your WebToApp JS extension by adding a style.css file and setting the hasCss flag in your module.json manifest to apply visual styling to your page-level UI features.

Does WebToApp module development support native code or is it JS-only?▼

WebToApp module development is strictly JS-only, designed to provide lightweight UI enhancements and small feature augmentations inside a WebView without requiring heavier native code changes.

Why does my main.js file need to be wrapped in an IIFE for the Module Market?▼

Your main.js file must be wrapped in an IIFE to enforce variable isolation and prevent scope pollution within the WebView, ensuring deterministic execution of your WebToApp JavaScript extension.

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