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Essential JavaScript concepts v1.0.0

Use this resource to explain essential JavaScript concepts and debug tricky code

New

  • 579 downloads
  • 111 likes
  • 203 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install javascript-core-concepts-explainer

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent explains more than thirty essential JavaScript concepts, from scope to promises, and helps debug tricky code by linking the observed behavior to the concept at play. It relies on a detailed guide inspired by a public 33-concept course. You get a clear explanation with examples.

Mostly picked by

Updated November 2, 2026

Card for the “Essential JavaScript concepts” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: use cases, when to explain a concept and when to debug
  • references/detailed-guide.md: detailed guide to the concepts

Good fit for

  • You are learning JavaScript and want to understand the basics
  • A JavaScript bug seems baffling to you

Not for

    Tags

    • javascript
    • concepts
    • debugging
    • learning
    • scope

    About

    You say

    “Explain why this setTimeout loop always prints the same value.”

    Card for the “Essential JavaScript concepts” skill

    Skill published by sickn33 under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to explain essential JavaScript concepts and debug tricky code
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/detailed-guide.md13.2 KB
    • SKILL.md1.3 KB

    Origin and licence

    Listed unmodified

    Author
    sickn33
    Source
    github.com/sickn33/agentic-awesome-skills/tree/e9809578fd426a284af017c5db99f8eb6628e6ca/skills/javascript-mastery
    Licence
    MIT

    Notice

    « javascript-mastery » (sickn33, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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