noDuplicateDependencies

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Summary

Rule available since: v2.2.4
Diagnostic Category: lint/nursery/noDuplicateDependencies
This rule doesn’t have a fix.
The default severity of this rule is information.
Sources:
- Same as package-json/unique-dependencies
- Same as package-json-dependencies/duplicate-dependencies

1
{
2
  "linter": {
3
    "rules": {
4
      "nursery": {
5
        "noDuplicateDependencies": "error"
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      }
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    }
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  }
9
}

Disallow any dependency from being specified more than once (e.g. in dependencies and devDependencies)

1
{
2
    "dependencies": {
3
        "foo": "1.0.0"
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    },
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    "devDependencies": {
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        "foo": "1.0.0"
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    }
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}

1
{
2
    "dependencies": {
3
        "foo": "1.0.0"
4
    }
5
}