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Happy DOM Event Handling

Official

Debug DOM events with confidence

Software Engineering#debugging#javascript#event handling#web components#happy-dom#shadow dom
Authorcorey-alix
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill clarifies complex event propagation rules within Happy DOM's shadow DOM implementation, preventing developers from introducing unnecessary or incorrect re-entrancy guards in their event handlers.

Core Features & Use Cases

  • Event Boundary Verification: Confirms Happy DOM's correct enforcement of shadow DOM event boundaries.
  • Debugging Guidance: Provides a clear response pattern for diagnosing duplicate event handler calls, focusing on listener accumulation rather than framework defects.
  • Use Case: When debugging a web component where an event handler seems to be firing twice, this Skill helps you quickly identify that the issue is likely duplicate listener registration and guides you to fix it, rather than adding a masking re-entrancy guard.

Quick Start

Consult this skill when investigating duplicate event handler calls in Happy DOM.

Dependency Matrix

Required Modules

None required

Components

references

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: Happy DOM Event Handling
Download link: https://github.com/corey-alix/dwp-hours/archive/main.zip#happy-dom-event-handling

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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