jscpd
Detect and analyze duplicate code in JavaScript, TypeScript, and other languages. Use when identifying duplicate code blocks, analyzing code duplication metrics, improving maintainability, or supporting refactoring efforts.
Installation
Suivez les instructions du dépôt pour votre agent. Consultez les fichiers et dépendances avant l’installation.
Voir la source ↗GuidesInstructions
jscpd
Duplicate code detector supporting 150+ languages.
Usage
# Analyze directory
npx jscpd /path/to/source
# With pattern filter
npx jscpd --pattern "src/**/*.js" .
# Ignore directories
npx jscpd --ignore "**/node_modules/**,**/dist/**" .
# Minimum tokens to match (default: 50)
npx jscpd --min-tokens 30 .
# Output formats
npx jscpd --reporters json --output report.json .
npx jscpd --reporters html --output ./report/ .
Common Options
| Option | Description |
|---|---|
--min-tokens N |
Minimum tokens for duplicate detection |
--min-lines N |
Minimum lines for duplicate detection |
--threshold N |
Fail if duplication % exceeds threshold |
--ignore "glob" |
Ignore patterns (comma-separated) |
--reporters type |
Output format: console, json, html |
--output path |
Output directory for reports |
--silent |
Suppress console output |
Workflow
- Run jscpd to find duplicates
- Review the reported duplicates
- Refactor to eliminate duplication
- Re-run to verify cleanup
Exemples
Consultez les exemples du dépôt source.
Voir la source ↗Historique source
- Date d’indexation
- 2026-01-20
- Mise à jour de l’index
- 2026-01-26
- Branch
- main
Les dates concernent ce répertoire. Consultez le dépôt pour l’historique du code.
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