biome.jsonc

{
  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
  "vcs": {
    "enabled": true,
    "clientKind": "git",
    "useIgnoreFile": true,
    "defaultBranch": "main"
  },
  "formatter": {
    "enabled": true,
    "indentStyle": "space",
    "indentWidth": 2,
    "lineEnding": "lf"
  },
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": true,
      "style": {
        // Fine for small mapping functions. Catch on a review basis rather than
        // enforcing
        "noParameterAssign": {
          "level": "info"
        },
        // Type inference can't always deal with things like filtering arrays
        // and then using the filtered property. Catch on a review basis rather
        // than enforcing
        "noNonNullAssertion": {
          "level": "info"
        },
        // To allow error handling to be neat and concise, it can sometimes be
        // clearer to have a "useless" else to clearly state that all branches
        // are considered. Catch on a review basis rather than enforcing
        "noUselessElse": {
          "level": "info"
        }
      }
    }
  },
  // TODO: When support has landed, block restricted syntax:
  // - TSTypeAliasDeclaration[id.name=Props] - Type declarations for props should be named to reflect what it is used for. Use. Props as a suffix.
  // - TSInterfaceDeclaration[id.name=Props] - Interface declarations for props should be named to reflect what it is used for. Use Props as a suffix.
  // TODO: WHen support has landed, require eslint's spaced-comment
  "javascript": {
    "formatter": {
      "enabled": true,
      "quoteStyle": "single",
      "trailingCommas": "es5",
      "semicolons": "asNeeded"
    }
  },
  "json": {
    "parser": {
      "allowTrailingCommas": true
    },
    "formatter": {
      "enabled": true,
      "trailingCommas": "none"
    }
  },
  "css": {
    "parser": {
      "cssModules": true
    },
    "formatter": {
      "enabled": true,
      "quoteStyle": "single"
    }
  }
}