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JSON Rules

Below the list of rules supported by Biome, divided by group. Here’s a legend of the emojis:

  • The icon indicates that the rule is part of the recommended rules.
  • The icon indicates that the rule provides a code action (fix) that is safe to apply.
  • The icon indicates that the rule provides a code action (fix) that is unsafe to apply.
  • The icon indicates that the rule is currently only available in the 2.0 beta release.
Rule nameDescriptionProperties
noDuplicateObjectKeysDisallow two keys with the same name inside objects.