event-delegation SKILL.md skillA

event-delegation from thedaviddias/front-end-checklist is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add thedaviddias/front-end-checklist/event-delegation@git:20261004.4b0ddb9

Pins git:20261004.4b0ddb9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
thedaviddias/front-end-checklist
Path
skills/event-delegation/SKILL.md
Versions recorded
2
Latest version
git:20261004.4b0ddb9, committed Oct 4, 2026
First version recorded
May 29, 2026
Size
2,001 bytes
Repository stars
74,516
License
MIT

Use when reviewing scripts, client components, bundles, or runtime behavior related to Use event delegation for dynamic content. Inspect both source code and the browser execution path so fixes target the real bottleneck or bug.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Use event delegation for dynamic content

Adding hundreds of individual event listeners for list items or table rows consumes significant memory and creates performance overhead. Dynamic content (items loaded via AJAX or rendered after user actions) won't have event listeners unless you re-attach them after each update — event delegation solves both problems at once.

## Quick Reference

- Attach one listener to a parent instead of many to individual children
- Use event.target.closest() to identify the intended target element
- Event delegation automatically works for elements added dynamically
- Clean up listeners on the parent when the container is removed

## Check

Find any code in this file that attaches the same event handler to multiple elements in a loop. Suggest event delegation as an alternative.

## Fix

Refactor these per-element event listeners to use event delegation on the common parent container.

## Explain

Explain event delegation, how event bubbling enables it, and when to use closest() vs target.

## Code Review
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add thedaviddias/front-end-checklist/event-delegation@sha256:3ce1cf4fe8065181

The line at the top of this page pins the label git:20261004.4b0ddb9, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_rz3jrii2pb7ucxik.svg)](https://markdownregistry.com/a/art_rz3jrii2pb7ucxik)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, between May 29, 2026 and Oct 4, 2026, about one every 128 days.

versioncommittedcommitsizeaudit
git:20261004.4b0ddb9 latest2026-10-04 4b0ddb9 2,001 BA view · diff
git:20260529.7c059042026-05-29 7c05904 2,007 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (2001 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

thedaviddias/front-end-checklist · 74,516 stars · license MIT · pushed 2026-10-06 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_rz3jrii2pb7ucxik
GET https://markdownregistry.com/api/v1/resolve?ref=thedaviddias/front-end-checklist/event-delegation
GET https://markdownregistry.com/api/v1/blob/3ce1cf4fe80651815c504438451c203f454133a51c14c7554cb3012c1de1bed5

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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