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JavaScript Language Patterns - Modern JavaScript patterns for clean and maintainable code

Provides ES2022+ language patterns for clean JavaScript code

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Updated: 2026-02-12

Capabilities

Typical Inputs

Typical Outputs

What this skill does

  • apply const and let declarations
  • use arrow functions for callbacks
  • implement async/await with try/catch
  • use object destructuring and spread
  • apply template literals for strings
  • use map, filter, reduce methods
  • import/export ESM modules
  • use private class fields

Inputs

  • JavaScript files (*.js, *.mjs, *.cjs)
  • ES2022+ codebase

Outputs

  • modern JavaScript code patterns
  • clean and maintainable code

Requirements

  • ES2022+ environment
  • JavaScript runtime

Source

  • Spec: SKILL.md

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javascript
language
es6
modern-js
best-practices
tooling
apply const and let declarations
use arrow functions for callbacks
implement async/await with try/catch
use object destructuring and spread
JavaScript files (*.js, *.mjs, *.cjs)
ES2022+ codebase
modern JavaScript code patterns
clean and maintainable code