Analyzer

CLI

New features

• The CLI now supports nested .gitignore files during the traversal. The users don't need to do anything to avail of this feature. Contributed by @ematipico

• Fix #709, by correctly parsing allow list patterns in .gitignore files. Contributed by @ematipico

• Fix #805, by correctly parsing these kind of patterns. Contributed by @ematipico

• Fix 1117 by correctly respecting the matching. Contributed by @ematipico

Configuration

New features

• Users can specify git ignore patterns inside ignore and include properties, for example it's possible to allow list globs of files using the ! character:

  {
    "files": {
      "ignore": [
        "node_modules/**",
        "!**/dist/**" // this is now accepted and allow list files inside the `dist` folder
      ]
    }
  }
  

Editors

New features

• The LSP register formatting without the need of using dynamic capabilities from the client.

Formatter

JavaScript APIs

Linter

New features

• Add useExportType that enforces the use of type-only exports for names that are only types. Contributed by @Conaclos

    interface A {}
    interface B {}
    class C {}
  
  - export type { A, C }
  + export { type A, C }
  
  - export { type B }
  + export type { B }
  

Enhancements

Bug fixes

• Fix #959. noEmptyInterface no longer reports interface that extends a type and is in an external module. COntributed by @Conaclos

  Empty interface that extends a type are sometimes used to extend an existing interface. This is generally used to extend an interface of an external module.

  interface Extension {
    metadata: unknown;
  }
  
  declare module "@external/module" {
    export interface ExistingInterface extends Extension {}
  }
  

• Fix #1061. noRedeclare no longer reports overloads of export default function. Contributed by @Conaclos

  The following code is no longer reported:

  export default function(a: boolean): boolean;
  export default function(a: number): number;
  export default function(a: number | boolean): number | boolean {
  	return a;
  }
  

• Fix #651, useExhaustiveDependencies no longer reports out of scope dependencies. Contributed by @kalleep

  The following code is no longer reported:

  let outer = false;
  
  const Component = ({}) => {
    useEffect(() => {
      outer = true;
    }, []);
  }
  

• Fix #728. useSingleVarDeclarator no longer outputs invalid code. Contributed by @Conaclos

• Fix #1167. [useValidAriaProps] no longer reports aria-atomic as invalid. Contributed by @unvalley

Parser

• Fix #1077, fix issues when parsing conditional expression where parenthesized identifier was being parsed as arrow expression. Contributed by @kalleep

These cases are now properly parsed:

javascript:

  a ? (b) : a => {};

typescript:

  a ? (b) : a => {};

jsx:

  bar ? (foo) : (<a>{() => {}}</a>);

What's Changed

Other changes

• docs(ja): update Formatter in japanese by @chansuke in https://github.com/biomejs/biome/pull/1076
• docs(LICENSE-APACHE): fill copyright placeholder by @ImBIOS in https://github.com/biomejs/biome/pull/1166
• docs: fix incorrect file name by @wobsoriano in https://github.com/biomejs/biome/pull/1175
• feat(css_parser): CSS parser container at rule #995 by @denbezrukov in https://github.com/biomejs/biome/pull/1114
• test(useShorthandFunctionType): add more test cases by @ImBIOS in https://github.com/biomejs/biome/pull/1185
• docs(README.md): update translations in README.md by @ImBIOS in https://github.com/biomejs/biome/pull/1183
• refactor: noNoninteractiveTabindex code action by @vasucp1207 in https://github.com/biomejs/biome/pull/1179

New Contributors

• @ImBIOS made their first contribution in https://github.com/biomejs/biome/pull/1166
• @wobsoriano made their first contribution in https://github.com/biomejs/biome/pull/1175

Full Changelog: https://github.com/biomejs/biome/compare/cli/v1.4.1-nightly.570d680...cli/v1.4.1-nightly.e087146