biomejs/biome cli/v1.9.5-nightly.c0cccb2 on GitHub

Analyzer

Bug fixes

Fix CSS parser case error, @-moz-document url-prefix(https://example.com) and @-moz-document domain(example.com) are now valid. Contributed by @eryue0220
Fix #4258, where fixed css parse error with @-moz-document url-prefix(). Contributed by @eryue0220

CLI

Bug fixes

Don't parse the files that don't end with the json extension as JSON files in the .vscode directory (#4391). Contributed by @Conaclos
biome migrate eslint now correctly resolves scoped package named eslint-config with a path.
Contributed by @Conaclos
biome migrate eslint now correctly handles shared ESLint configuration that don't follow the ESLint naming convention (#4528).
ESLint recommends that a package that exports a shared configuration be prefixed with eslint-config- or simply named eslint-config.
This is only a recommendation.
Packages that export shared configurations can have arbitrary names.
Biome is now able to load any package.
Contributed by @Conaclos

Formatter

Fix #4413, where the GraphQL formatter adds a new line at the start of block comments on Windows. Contributed by @vohoanglong0107

Bug fixes

Fix #4121, don't ident a CSS selector when has leading comments. Contributed by @fireairforce
Fix #4334, don't insert trailing comma on type import statement. Contributed by @fireairforce
Fix #3229, where Biome wasn't idempotent when block comments were placed inside compound selectors. Contributed by @ematipico
Fix #4026, don't move comments in grid-template. Contributed by @fireairforce
Fix #4533, don't throw error when pseudeo class after a webkit scrollbar pseudeo element.
The follow code will not report:
```
::-webkit-scrollbar-thumb:hover {}
```
Contributed by @fireairforce

Linter

New features

Add noUselessUndefined. Contributed by @unvalley
useFilenamingConvention accepts a new option match (#4105).
You can now validate filenames with a regular expression.
For instance, you can allow filenames to start with %:
```
{
  "linter": {
    "rules": {
      "style": {
        "useFilenamingConvention": {
          "level": "warn",
          "options": {
              "match": "%?(.+?)[.](.+)",
              "filenameCases": ["camelCase"]
          }
        }
      }
    }
  }
}
```
If the regular expression captures strings, the first capture is considered to be the name of the file, and the second one to be the extensions (dot-separated values).
The name of the file and the extensions are checked against filenameCases.
Given the previous configuration, the filename %index.d.ts is valid because the first capture index is in camelCase and the second capture d.ts include dot-separated values in lowercase.
On the other hand, %Index.d.ts is not valid because the first capture Index is in PascalCase.
Note that specifying match disallows any exceptions that are handled by the rule by default.
For example, the previous configuration doesn't allow filenames to be prefixed with underscores,
a period or a plus sign.
You need to include them in the regular expression if you still want to allow these exceptions.
Contributed by @Conaclos
useFilenamingConvention and useNamingConvention match options now accept case-insensitive and case-sensitive groups.
By default, the regular expression in match is case-sensitive.
You can now make it case-insensitive by using a case-insensitive group (?i:).
For example, the regular expression (?i:a) matches a and A.
Contributed by @Conaclos
noUndeclaredVariables now provides the checkTypes option (#3998).
noUndeclaredVariables is inspired by the no-undef ESLint rule. It reports all references that are not bound to any declarations within a module.
Node.js, JavaScript and TypeScript globals are ignored.
Biome provides the javascript.globals option to list additional globals that should be ignored by the rule.
In TypeScript projects, developers often use global declaration files to declare global types.
Biome is currently unable to detect these global types.
This creates many false positives for noUndeclaredVariables.
TypeScript is better suited to perform this kind of check.
As proof of this, TypeScript ESLint doesn't provide any rule that extends the no-undef ESLint rule.
This is why we introduce today a new option checkTypes which, when it is set to false, ignores undeclared type references.
Given the following configuration...
```
{
    "linter": {
        "rules": {
            "correctness": {
                "noUndeclaredVariables": {
                    "level": "error",
                    "options": { "checkTypes": false }
                }
            }
        }
    }
}
```
... UndeclaredType is not reported by the rule.
```
export default function(): UndeclaredType {}
```
We plan to turn off the option by default in Biome 2.0
Also, this will bring the Biome rule closer to the no-undef ESLint rule.
Contributed by @Conaclos
Add noGlobalDirnameFilename. Contributed by @unvalley

Enhancements

useExportType and useImportType now ignore TypeScript declaration files (#4416). Contributed by @Conaclos
useArrayLiterals now provides a code fix.
```
- const xs = new Array();
+ const xs = [];
```
The code fix is currently marked as unsafe.
We plan to make it safe in a future release of Biome.
Contributed by @Conaclos
noUnusedImports now reports empty named imports and suggests its removal (#3574).
The rule now suggests the removal of empty named imports such as:
```
- import {} from "mod";
```
Contributed by @Conaclos
noUnusedImports now keeps comments separated from the import with a blank line (#3401).
Here is an example:
```
  // Orphan comment

- // Header comment
- import {} from "mod";
```
Contributed by @Conaclos
useValidTypeof now accepts comparisons with variables.
Previously, the rule required to compare a typeof expression against another typeof expression or a valid string literal.
We now accept more cases, notably comparison against a variable:
```
if (typeof foo === bar) {
  // ...
}
```
Contributed by @Conaclos

noUnknownProperty now accepts more known CSS properties (#4549).

- ['anchor-default', 'anchor-scroll', 'inset-area', 'position-animation', 'position-fallback', 'position-fallback-bounds', 'position-try-options']
+ ['anchor-scope', 'interpolate-size', 'line-fit-edge', 'masonry', 'masonry-auto-tracks', 'masonry-direction', 'masonry-fill', 'masonry-flow', 'masonry-slack', 'masonry-template-areas', 'masonry-template-tracks', 'position-anchor', 'position-area', 'position-try-fallbacks', 'position-visibility', 'scroll-start-target', 'text-box', 'view-transition-class', 'view-transition-group']

This change replaces deprecated properties, improving CSS validation.

Contributed by @lucasweng

Bug fixes

noControlCharactersInRegex no longer panics when it encounters an unterminated unicode escape sequence (#4565). Contributed by @Conaclos
useArrayLiterals now reports all expressions using the Array constructors.
Previously, the rule reported only use of the Array constructor in expressions statements.
```
// This was reported
new Array();
// This was not reported
const xs = new Array();
```
Contributed by @Conaclos
useArrowFunction now preserves directives (#4530).
Previously the rule removed the directives when a function expression was turned into an arrow function.
The rule now correctly keeps the directives.
```
- const withDirective = function () {
+ const withDirective = () => {
      "use server";
      return 0;
  }
```
Contributed by @Conaclos
noUndeclaredVariables is now able to bind read of value to a type-only import in ambient contexts (#4526).
In the following code, A is now correctly bound to the type-only import.
Previously, A was reported as an undeclared variable.
```
import type { A } from "mod";

declare class B extends A {}
```
Contributed by @Conaclos
noUnusedVariables no longer reports top-level variables in a global declaration file as unused. Contributed by @Conaclos
useNamingConvention no longer suggests renaming top-level variables in a global declaration file. Contributed by @Conaclos
noMisleadingCharacterClass no longer panics on malformed escape sequences that end with a multi-byte character (#4587). Contributed by @Conaclos
noUnusedImports no longer reports used values imported as types in an external module ([#3895])(#3895). Contributed by @Conaclos
Fixed a panic related to bogus import statements in useExhaustiveDependencies (#4568) Contributed by @dyc3
Fix #4323, where lint/a11y/useSemanticElement accidentally showed recommendations for role="searchbox" instead of role="search"

Parser

Bug fixes

Fix #4317, setter parameter can contain a trailing comma, the following example will now parsed correctly:
```
export class DummyClass {
  set input(
    value: string,
  ) {}
}
```
Contributed by @fireairforce
Fix #3836, css parser allow multiple semicolons after a declaration, the following example will now parsed correctly:
```
.foo {
  color: red;;
}
```
Contributed by @fireairforce
Fix #342, js parser handle unterminated JSX_STRING_LITERAL properly
```
function Comp() {
  return (
      <a rel="
```
Fix #342, js parser is no longer progressing for an invalid object
member name:
```
({
  params: { [paramName: string]: number } = {}
})
```
Contributed by @denbezrukov
Fix #342, "expected a declaration as guaranteed by is_at_ts_declare_statement" error for declare interface:
```
declare interface
```
Contributed by @denbezrukov
Don't panic when a multi-byte character is found in a unicode escape sequence (#4564). Contributed by @Conaclos
Don't panic when a declare statement is followed by an unexpected token.(#4562). Contributed by @fireairforce

What's Changed

Other changes

fix(deps): update dependency happy-dom to v15.10.1 [security] by @renovate in #4480
fix(deps): update dependency happy-dom to v15.10.2 [security] by @renovate in #4482
refactor(aria): move properties to aria-metdata by @Conaclos in #4481
refactor(aria): generate role metadata by @Conaclos in #4488
fix(js_analyze): skip noAutofocus check if eligible by @seeintea in #4475
fix(linter): improve diagnostic for noConstructorReturn by @arendjr in #4492
feat(aria-data): add DPub and Graphics modules by @Conaclos in #4497
chore(deps): update rust crate insta to 1.41.1 by @renovate in #4503
chore(deps): update rust crate tokio to 1.41.1 by @renovate in #4504
docs(linter): include advice on the singleton pattern with noConstructorReturn by @arendjr in #4510
chore(deps): update codspeedhq/action action to v3.1.0 by @renovate in #4500
chore(deps): update rust crate anyhow to 1.0.93 by @renovate in #4499
chore(deps): update dependency @typescript-eslint/eslint-plugin to v8.13.0 by @renovate in #4501
refactor(aria): use aria metadata to find equivalent HTML element by @Conaclos in #4495
chore(deps): update rust docker tag to v1.82.0 by @renovate in #4505
chore(deps): update dependency eslint to v9.14.0 - autoclosed by @renovate in #4502
refactor(js_syntax): minor clean up by @Conaclos in #4513
refactor(useValidAutocomplete): use Ast query instead of Aria by @Conaclos in #4516
feat(grit): add more formatting nodes by @ematipico in #4515
fix(deps): update @biomejs packages by @renovate in #4506
refactor(aria): add AriaRole::from_roles by @Conaclos in #4521
feat(grit): complete formatting of all nodes by @ematipico in #4520
feat(grit): add range formatting by @ematipico in #4525
feat(useExplicitType): implement support for methods and functions wi… by @kaykdm in #4535
fix(json_parser): fix broken JsonParserOptions::from(&JsonFileSource) implementation by @cr7pt0gr4ph7 in #4540
refactor(js_syntax): add TsDeclarationModule node by @Conaclos in #4546
feat(rules_check): validate the option examples for rules by @cr7pt0gr4ph7 in #4542
chore(deps): update rust crate serde_json to 1.0.133 by @renovate in #4558
chore(deps): update rust:1.82.0 docker digest to d9c3c6f by @renovate in #4555
docs: improve README.md's structure by @okineadev in #4550
chore(deps): update pnpm to v9.13.2 by @renovate in #4561
chore(deps): update rust crate serde to 1.0.215 by @renovate in #4556
fix(deps): update @biomejs packages by @renovate in #4559
fix(biome_js_analyze): use consistent code action markup for noAria*/useAria* by @cr7pt0gr4ph7 in #4571
chore(deps): update dependency @typescript-eslint/eslint-plugin to v8.14.0 by @renovate in #4560
fix(js_semantic): scope for TsDeclarationModule by @Conaclos in #4580
chore: add arendjr to lead team by @arendjr in #4581
feat: translation of the @biomejs/biome package readme into Russian by @e965 in #4582
refactor(js_semantic): reduce BindingInfo size by @Conaclos in #4589
fix: added a missing link to the English README in the Russian translation by @e965 in #4591
refactor(biome_console): add blanket implementation of biome_console::fmt::Display for Box<_> by @cr7pt0gr4ph7 in #4599
feat: 🌍 add Ukrainian translation of README.md by @okineadev in #4573

New Contributors

@seeintea made their first contribution in #4475
@cr7pt0gr4ph7 made their first contribution in #4540
@okineadev made their first contribution in #4550
@e965 made their first contribution in #4582

Full Changelog: cli/v1.9.5-nightly.ff02a0b...cli/v1.9.5-nightly.c0cccb2

biomejs/biome cli/v1.9.5-nightly.c0cccb2 CLI v1.9.5-nightly.c0cccb2 on GitHub

Analyzer

Bug fixes

CLI

Bug fixes

Formatter

Bug fixes

Linter

New features

Enhancements

Bug fixes

Parser

Bug fixes

What's Changed

Other changes

New Contributors

biomejs/biome cli/v1.9.5-nightly.c0cccb2
CLI v1.9.5-nightly.c0cccb2

on GitHub