📝 `.js` extensions converted to `.ts` extensions for no reason

[amerrit2]

Environment information

CLI:
  Version:                      2.2.5
  Color support:                true

Platform:
  CPU Architecture:             x86_64
  OS:                           windows

Environment:
  BIOME_LOG_PATH:               unset
  BIOME_LOG_PREFIX_NAME:        unset
  BIOME_CONFIG_PATH:            unset
  BIOME_THREADS:                unset
  NO_COLOR:                     unset
  TERM:                         xterm-256color
  JS_RUNTIME_VERSION:           v24.10.0
  JS_RUNTIME_NAME:              node
  NODE_PACKAGE_MANAGER:         npm/11.5.1

Biome Configuration:
  Status:                       Loaded successfully
  Path:                         biome.jsonc
  Formatter enabled:            true
  Linter enabled:               true
  Assist enabled:               true
  VCS enabled:                  false

Formatter:
  Format with errors:           unset
  Indent style:                 Tab
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   120
  Attribute position:           unset
  Bracket spacing:              unset
  Includes:                     unset

JavaScript Formatter:
  Enabled:                      unset
  JSX quote style:              unset
  Quote properties:             unset
  Trailing commas:              unset
  Semicolons:                   unset
  Arrow parentheses:            unset
  Bracket spacing:              unset
  Bracket same line:            unset
  Quote style:                  Single Quotes
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Attribute position:           unset

JSON Formatter:
  Enabled:                      unset
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Trailing Commas:              unset
  Expand lists:                 unset

CSS Formatter:
  Enabled:                      unset
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Quote style:                  unset

GraphQL Formatter:
  Enabled:                      unset
  Indent style:                 unset
  Indent width:                 unset
  Line ending:                  unset
  Line width:                   unset
  Bracket spacing:              unset
  Quote style:                  unset

Workspace:
  Open Documents:               0

Configuration

{
	"$schema": "https://biomejs.dev/schemas/2.0.0-beta.1/schema.json",
	"vcs": {
		"enabled": false,
		"clientKind": "git",
		"useIgnoreFile": false
	},
	"files": {
		"ignoreUnknown": false,
		"includes": [
			"**",
			"!**/coverage",
			"!**/*.js",
			"!**/*.cjs",
			"!**/*.d.cts",
			"!**/*.d.ts",
			"!**/.nx",
			"!**/*schema.json",
			"!**/.vscode/settings.json",
			"!**/nx.json",
			"!**/expected_cucumber.js",
			"!**/assets"
		]
	},
	"formatter": {
		"enabled": true,
		"indentStyle": "tab",
		"lineWidth": 120
	},
	"assist": {
		"actions": {
			"source": {
				"organizeImports": "off" // This is helpful but doesn't auto-fix
			}
		}
	},
	"linter": {
		"enabled": true,
		"rules": {
			"style": {
				"noNonNullAssertion": "off",
				"useLiteralEnumMembers": "error",
				"useNodejsImportProtocol": "error",
				"useAsConstAssertion": "error",
				"useEnumInitializers": "error",
				"useSelfClosingElements": "error",
				"useConst": "error",
				"useSingleVarDeclarator": "error",
				"noUnusedTemplateLiteral": "error",
				"useNumberNamespace": "error",
				"noInferrableTypes": "error",
				"useExponentiationOperator": "error",
				"useTemplate": "error",
				"noParameterAssign": "error",
				"useDefaultParameterLast": "error",
				"useImportType": "error",
				"useExportType": "error",
				"noUselessElse": "error",
				"useShorthandFunctionType": "error"
			},
			"nursery": {
				"noFloatingPromises": "error"
			},
			"suspicious": {
				"noExplicitAny": "off",
				"noAssignInExpressions": "off",
				"noFocusedTests": "warn",
				"noImplicitAnyLet": "warn"
			},
			"correctness": {
				"useImportExtensions": "error",
				"noUnusedVariables": "info",
				"noUnusedFunctionParameters": "info"
			}
		}
	},
	"javascript": {
		"formatter": {
			"quoteStyle": "single"
		}
	},
	"json": {
		"parser": {
			"allowComments": true
		}
	}
}

Playground link

I don't have time right now to set up a whole repro project, sorry

Code of Conduct

• I agree to follow Biome's Code of Conduct

[github-actions]

Hello @amerrit2, please provide a minimal reproduction. You can use one of the following options:

• Provide a link to our playground, if it's applicable.
• Provide a link to GitHub repository. To easily create a reproduction, you can use our interactive CLI via npm create @biomejs/biome-reproduction

Issues marked with S-Needs repro will be closed if they have no activity within 3 days.