javascript-mastery

95 / 100 · Low risk

Fine to try.

By Zidong-LLC/BIBLIOTECA (GitHub) · coding · 36 stars · scanned at commit 69eddbe

Comprehensive JavaScript reference covering 33+ essential concepts every developer should know. From fundamentals like primitives and closures to advanced patterns like async/await and functional p...

Works with any agent that supports SKILL.md skills.

What this skill can do

Connects to the internet

The author does not mention this.

Found in 3 places.

skills/skills/programming-languages/javascript-mastery/SKILL.md, line 353const response = await fetch(`/api/users/${userId}`);
skills/skills/programming-languages/javascript-mastery/SKILL.md, line 366fetch("/api/users"),
skills/skills/programming-languages/javascript-mastery/SKILL.md, line 367fetch("/api/posts"),

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'javascript-mastery' ] || [ -L ~/.agents/skills/'javascript-mastery' ]; then echo 'A skill folder named javascript-mastery already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Zidong-LLC/BIBLIOTECA' "$d" && git -C "$d" checkout --quiet '69eddbe06f7b3263d9aa2433f1c11abbb6f48361' -- 'skills/skills/programming-languages/javascript-mastery' && mkdir -p ~/.agents/skills && cp -R "$d"/'skills/skills/programming-languages/javascript-mastery' ~/.agents/skills/'javascript-mastery' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'javascript-mastery' ~/.claude/skills/'javascript-mastery' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

The badge for Zidong-LLC/BIBLIOTECA shows the score of its lowest-scoring skill.

SkillTrust badge for Zidong-LLC/BIBLIOTECA

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/Zidong-LLC/BIBLIOTECA.svg)](https://zalavijaysinh.github.io/skilltrust/repos/Zidong-LLC/BIBLIOTECA/)

Score history

Date	Version	Score
2026-11-12	`69eddbe`	95

Also found in

Identical copies of this skill exist at:

Zidong-LLC/BIBLIOTECA/skills/web-app/public/skills/javascript-mastery
ratnesh-maurya/cursor-claude-personas/senior-frontend-developer/.claude/skills/javascript-mastery
ratnesh-maurya/cursor-claude-personas/senior-frontend-developer/.cursor/skills/javascript-mastery