Releases: biomejs/biome
Biome CLI v2.1.4
2.1.4
Patch Changes
-
#7121
b9642abThanks @arendjr! - Fixed #7111: Imported symbols using aliases are now correctly recognised. -
#7103
80515ecThanks @omasakun! - Fixed #6933 and #6994.When the values of private member assignment expressions, increment expressions, etc. are used, those private members are no longer marked as unused.
-
#6887
0cc38f5Thanks @ptkagori! - Added thenoQwikUseVisibleTaskrule to Qwik.This rule is intended for use in Qwik applications to warn about the use of
useVisibleTask$()functions which require careful consideration before use.Invalid:
useVisibleTask$(() => { console.log("Component is visible"); });
Valid:
useTask$(() => { console.log("Task executed"); });
-
#7084
50ca155Thanks @ematipico! - Added the new nursery rulenoUnnecessararyConditions, which detects whenever some conditions don't
change during the life cycle of the program, and truthy or false, hence deemed redundant.For example, the following snippets will trigger the rule:
// Always truthy literal conditions if (true) { console.log("always runs"); }
// Unnecessary condition on constrained string type function foo(arg: "bar" | "baz") { if (arg) { // This check is unnecessary } }
-
#6887
0cc38f5Thanks @ptkagori! - Added theuseImageSizerule to Biome.The
useImageSizerule enforces the use of width and height attributes on<img>elements for performance reasons. This rule is intended to prevent layout shifts and improve Core Web Vitals by ensuring images have explicit dimensions.Invalid:
<img src="/image.png" /> <img src="https://example.com/image.png" /> <img src="/image.png" width="200" /> <img src="/image.png" height="200" />
Valid:
<img width="200" height="600" src="/static/images/portrait-01.webp" /> <img width="100" height="100" src="https://example.com/image.png" />
-
#6887
0cc38f5Thanks @ptkagori! - Added theuseAnchorHrefrule to Biome.The
useAnchorHrefrule enforces the presence of anhrefattribute on<a>elements in JSX. This rule is intended to ensure that anchor elements are always valid and accessible.Invalid:
<a>Link</a>
<a target="_blank">External</a>
Valid:
<a href="/home">Home</a>
<a href="https://example.com" target="_blank"> External </a>
-
#7100
29fcb05Thanks @Jayllyz! - Added the rulenoNonNullAssertedOptionalChain.This rule prevents the use of non-null assertions (
!) immediately after optional chaining expressions (?.). Optional chaining is designed to safely handle nullable values by returningundefinedwhen the chain encountersnullorundefined. Using a non-null assertion defeats this purpose and can lead to runtime errors.// Invalid - non-null assertion after optional chaining obj?.prop!; obj?.method()!; obj?.[key]!; obj?.prop!; // Valid - proper optional chaining usage obj?.prop; obj?.method(); obj?.prop ?? defaultValue; obj!.prop?.method();
-
#7129
9f4538aThanks @drwpow! - Removed option, combobox, listbox roles from useSemanticElements suggestions -
#7106
236deaaThanks @arendjr! - Fixed #6985: Inference of return types no longer mistakenly picks up return types of nested functions. -
#7102
d3118c6Thanks @omasakun! - Fixed #7101:noUnusedPrivateClassMembersnow handles members declared as part of constructor arguments:- If a class member defined in a constructor argument is only used within the constructor, it removes the
privatemodifier and makes it a plain method argument. - If it is not used at all, it will prefix it with an underscore, similar to
noUnusedFunctionParameter.
- If a class member defined in a constructor argument is only used within the constructor, it removes the
-
#7104
5395297Thanks @harxki! - Reverting to prevent regressions around ref handling -
#7143
1a6933aThanks @siketyan! - Fixed #6799: ThenoImportCyclesrule now ignores type-only imports if the newignoreTypesoption is enabled (enabled by default).[!WARNING]
Breaking Change: ThenoImportCyclesrule no longer detects import cycles that include one or more type-only imports by default.
To keep the old behaviour, you can turn off theignoreTypesoption explicitly:{ "linter": { "rules": { "nursery": { "noImportCycles": { "options": { "ignoreTypes": false } } } } } } -
#7099
6cc84cbThanks @arendjr! - Fixed #7062: Biome now correctly considers extended configs when determining the mode for the scanner. -
#6887
0cc38f5Thanks @ptkagori! - Added theuseQwikClasslistrule to Biome.This rule is intended for use in Qwik applications to encourage the use of the built-in
classprop (which accepts a string, object, or array) instead of theclassnamesutility library.Invalid:
<div class={classnames({ active: true, disabled: false })} />
Valid:
<div classlist={{ active: true, disabled: false }} />
-
#7019
57c15e6Thanks @fireairforce! - Added support in the JS parser forimport source(a stage3 proposal). The syntax looks like:import source foo from "<specifier>";
-
#7053
655049eThanks @jakeleventhal! - Added theuseConsistentTypeDefinitionsrule.This rule enforces consistent usage of either
interfaceortypefor object type definitions in TypeScript.The rule accepts an option to specify the preferred style:
interface(default): Prefer usinginterfacefor object type definitionstype: Prefer usingtypefor object type definitions
Examples:
// With default option (interface) // ❌ Invalid type Point = { x: number; y: number }; // ✅ Valid interface Point { x: number; y: number; } // With option { style: "type" } // ❌ Invalid interface Point { x: number; y: number; } // ✅ Valid type Point = { x: number; y: number };
The rule will automatically fix simple cases where conversion is straightforward.
What's Changed
- ci: use faster runners on Windows by @ematipico in #7041
- chore: use own semver parser by @ematipico in #7061
- docs(ana...
Biome CLI v2.1.3
2.1.3
Patch Changes
-
#7057
634a667Thanks @mdevils! - Added the rulenoVueReservedKeys, which prevents the use of reserved Vue keys.It prevents the use of Vue reserved keys such as those starting with
# @biomejs/biome (like$el,$data,$props) and keys starting with_` in data properties, which can cause conflicts and unexpected behavior in Vue components.Invalid example
<script> export default { data: { $el: "", _foo: "bar", }, }; </script>
<script> export default { computed: { $data() { return this.someData; }, }, }; </script>
Valid examples
<script> export default { data() { return { message: "Hello Vue!", count: 0, }; }, }; </script>
<script> export default { computed: { displayMessage() { return this.message; }, }, }; </script>
-
#6941
734d708Thanks @JamBalaya56562! - Added@eslint-react/no-nested-component-definitionsas a rule source fornoNestedComponentDefinitions. Now it will get picked up bybiome migrate --eslint. -
#6463
0a16d54Thanks @JamBalaya56562! - Fixed a website link for theuseComponentExportOnlyModuleslinter rule to point to the correct URL. -
#6944
e53f2feThanks @sterliakov! - Fixed #6910: Biome now ignores type casts and assertions when evaluating numbers fornoMagicNumbersrule. -
#6991
476cd55Thanks @denbezrukov! - Fixed #6973: Add support for parsing the :active-view-transition-type() pseudo-class:active-view-transition-type(first second) { }
-
#6992
0b1e194Thanks @ematipico! - Added a new JSON rule callednoQuickfixBiome, which disallow the use of code actionquickfix.biomeinside code editor settings. -
#6943
249306dThanks @JamBalaya56562! - Fixed@vitest/eslint-pluginsource url. -
#6947
4c7ed0fThanks @JamBalaya56562! - Fixed ESLint migration for the ruleprefer-forfromeslint-plugin-solidto Biome'suseForComponent. -
#6976
72ebadcThanks @siketyan! - Fixed #6692: The rulesnoUnusedVariablesandnoUnusedFunctionParametersno longer cause an infinite loop when the suggested name is not applicable (e.g. the suggested name is already declared in the scope). -
#6990
333f5d0Thanks @rvanlaarhoven! - Fixed the documentation URL forlint/correctness/noUnknownPseudoClass -
#7000
4021165Thanks @harxki! - Fixed #6795:noUnassignedVariablesnow correctly recognizes variables used in JSXrefattributes. -
#7044
b091ddfThanks @ematipico! - Fixed #6622, now the ruleuseSemanticElementsworks for JSX self-closing elements too. -
#7014
c4864e8Thanks @siketyan! - Fixed #6516: Thebiome migratecommand no longer break the member list with trailing comments. -
#6979
29cb6daThanks @unvalley! - Fixed #6767:useSortedClassesnow correctly removes leading and trailing whitespace in className.Previously, trailing spaces in className were not fully removed.
// Think we have this code: <div className="text-sm font-bold " /> // Before: applied fix, but a trailing space was preserved <div className="font-bold text-sm " /> // After: applied fix, trailing spaces removed <div className="font-bold text-sm" />
-
#7055
ee4828dThanks @dyc3! - Added the nursery ruleuseReactFunctionComponents. This rule enforces the preference to use function components instead of class components.Valid:
function Foo() { return <div>Hello, world!</div>; }
Invalid:
class Foo extends React.Component { render() { return <div>Hello, world!</div>; } }
-
#6924
2d21be9Thanks @ematipico! - Fixed #113, where the Biome Language Server didn't correctly update the diagnostics when the configuration file is modified in the editor. Now the diagnostics are correctly updated every time the configuration file is modified and saved. -
#6931
e6b2380Thanks @arendjr! - Fixed #6915:useHookAtTopLevelno longer hangs when rules call themselves recursively. -
#7012
01c0ab4Thanks @siketyan! - Fixed #5837: Invalid suppression comments such asbiome-ignore-all-startorbiome-ignore-all-endno longer causes a panic. -
#6949
48462f8Thanks @fireairforce! - Support parseimport defer(which is a stage3 proposal). The syntax look like this:import defer * as foo from "<specifier>";
-
#6938
5feb5a6Thanks @vladimir-ivanov! - Fixed #6919 and #6920:
useReadonlyClassPropertiesnow does checks for mutations in async class methods.Example:
class Counter3 { private counter: number; async count() { this.counter = 1; const counterString = `${this.counter++}`; } }
-
#6942
cfda528Thanks @sterliakov! - Fixed #6939. Biome now understandsthisbinding in classes outside of methods.
What's Changed
- docs: explain how to document options by @ematipico in #6916
- chore: fix changelog by @dyc3 in #6917
- fix: update
useComponentExportOnlyModuleswebsite link by @JamBalaya56562 in #6463 - fix(lsp): update diagnostics on watched files by @ematipico in #6924
- fix(linter): fix recursive hooks by @arendjr in #6931
- perf: introduce
Pathtype by @arendjr in #6935 - ci: add French, Spanish and Ukrainian to labeler by @JamBalaya56562 in #6926
- refactor: add
no-nested-component-definitionsrule...
Biome CLI v2.1.2
2.1.2
Patch Changes
-
#6865
b35bf64Thanks @denbezrukov! - Fix #6485: Handle multiple semicolons correctly in blocks (#6485)div { box-sizing: border-box; color: red; }
-
#6798
3579ffaThanks @dyc3! - Fixed #6762, Biome now knows that~/.config/zed/settings.jsonand~/.config/Code/User/settings.jsonallows comments by default. -
#6839
4cd62d8Thanks @ematipico! - Fixed #6838, where the Biome File Watcher incorrectly watched and stored ignored files, causing possible memory leaks when those files were dynamically created (e.g. built files). -
#6879
0059cd9Thanks @denbezrukov! - Refactor: remove one level of indirection for CSS declarations with semicolon
Previously, accessing a declaration from a list required an extra step:item .as_any_css_declaration_with_semicolon() .as_css_declaration_with_semicolon()
Now, it can be done directly with:
item.as_css_declaration_with_semicolon()
-
#6839
4cd62d8Thanks @ematipico! - Fixed a bug where the Biome Language Server didn't correctly ignore specific files whenvcs.useIgnoreFileis set totrue. -
#6884
5ff50f8Thanks @arendjr! - Improved the performance ofnoImportCyclesby ~30%. -
#6903
241dd9eThanks @arendjr! - Fixed #6829: Fixed a false positive reported byuseImportExtensionswhen importing a.jsfile that had a matching.d.tsfile in the same folder. -
#6846
446112eThanks @darricheng! - Fixed an issue where biome was using the wrong string quotes when the classes string has quotes, resulting in invalid code after applying the fix. -
#6823
eebc48eThanks @arendjr! - Improved #6172: Optimised the way function arguments are stored in Biome's type inference. This led to about 10% performance improvement inRedisCommander.d.tsand about 2% on@next/fonttype definitions. -
#6878
3402976Thanks @ematipico! - Fixed a bug where the Biome Language Server would apply an unsafe fix when using the code actionquickfix.biome.Now Biome no longer applies an unsafe code fix when using the code action
quickfix.biome. -
#6794
4d5fc0eThanks @vladimir-ivanov! - Fixed #6719: ThenoInvalidUseBeforeDeclarationrule covers additional use cases.Examples:
type Bar = { [BAR]: true }; const BAR = "bar";
interface Bar { child: { grandChild: { [BAR]: typeof BAR; enumFoo: EnumFoo } }; } const BAR = "bar"; enum EnumFoo { BAR = "bar", }
-
#6863
531e97eThanks @dyc3! - Biome now considers whether the linter is enabled when figuring out how the project should be scanned. Resolves #6815. -
#6832
bdbc2b1Thanks @togami2864! - Fixed #6165: Fixed false negative innoUnusedPrivateClassMembersrule when checking member usage in classes -
#6839
4cd62d8Thanks @ematipico! - Fixed a bug where the root ignore file wasn't correctly loaded during the scanning phase, causing false positives and incorrect expectations among users.Now, when using
vcs.useIgnoreFile, the the globs specified in the ignore file from the project root will have the same semantics as thefiles.includessetting of the root configuration.Refer to the relative web page to understand how they work.
-
#6898
5beb024Thanks @arendjr! - Fixed #6891: Improved type inference for array indices.Example:
const numbers: number[]; numbers[42]; // This now infers to `number | undefined`.
-
#6809
8192451Thanks @arendjr! - Fixed #6796: Fixed a false positive that happened innoFloatingPromiseswhen calling functions that were declared as part offor ... ofsyntax insideasyncfunctions.Instead, the variables declared inside
for ... ofloops are now correctly
inferred if the expression being iterated evaluates to anArray(support for other iterables will follow later).Invalid example
const txStatements: Array<(tx) => Promise<any>> = []; db.transaction((tx: any) => { for (const stmt of txStatements) { // We correctly flag this resolves to a `Promise`: stmt(tx); } });
Valid example
async function valid(db) { const txStatements: Array<(tx: any) => void> = [(tx) => tx.insert().run()]; db.transaction((tx: any) => { for (const stmt of txStatements) { // We don't flag a false positive here anymore: stmt(tx); } }); }
-
#6757
13a0818Thanks @mdevils! - Added the rulenoVueReservedProps, resolves #6309.It prevents the use of reserved Vue prop names such as
keyandrefwhich can cause conflicts and unexpected behavior in Vue components.Invalid example
import { defineComponent } from "vue"; export default defineComponent({ props: ["ref", "key", "foo"], });
<script setup> defineProps({ ref: String, key: String, foo: String, }); </script>
Valid examples
import { defineComponent } from "vue"; export default defineComponent({ props: ["foo"], });
<script setup> defineProps({ foo: String }); </script>
-
#6840
1a57b51Thanks @denbezrukov! - Allow multiple identifiers in ::part() pseudo-element selector.::part(first second) { }
-
#6845
4fd44ecThanks @arendjr! - Fixed #6510: The scanner no longer shows diagnostics on inaccessible files unless--verboseis used. -
#6844
b7e2d4dThanks @sterliakov! - Fixed #6837: Fixed regression with multiple consecutive line suppression comments using instances (like// biome-ignore lint/correctness/useExhaustiveDependencies(depName): reason). -
#6818 [
5f3f5a6](https://github.com/bi...
JavaScript APIs v2.0.3
2.0.3
Patch Changes
- #6785
085e3c7Thanks @siketyan! - Fixed #6722: Missingdist/files are now included in the@biomejs/js-apipackage. The previous release haven't fixed the issue properly.
What's Changed
- ci: use
nameinstead ofpatternfor downloading artifact by @siketyan in #6785 - ci: release by @github-actions in #6786
Full Changelog: https://github.com/biomejs/biome/compare/@biomejs/[email protected]...@biomejs/[email protected]
JavaScript APIs v2.0.2
2.0.2
Warning
Due to a CI problem, this version is broken and not includes necessary files in the package.
Patch Changes
-
#6780
563f3d5Thanks @siketyan! - Fixed #6722: Missingdist/files are now included in the@biomejs/js-apipackage. The previous release haven't fixed the issue properly. -
Updated dependencies []:
- @biomejs/[email protected]
- @biomejs/[email protected]
- @biomejs/[email protected]
What's Changed
- ci: correct restore path of the artifact by @siketyan in #6780
- fix(wasm): serialize map as a plain object by @siketyan in #6781
- ci: release by @github-actions in #6779
- docs: update contribution guide and pull request template by @ematipico in #6664
Full Changelog: https://github.com/biomejs/biome/compare/@biomejs/[email protected]...@biomejs/[email protected]
JavaScript APIs v2.0.1
2.0.1
Warning
Due to a CI problem, this version is broken and not includes necessary files in the package.
Patch Changes
- #6776
08652d0Thanks @siketyan! - Fixed #6722: Missingdist/files are now included in the@biomejs/js-apipackage.
What's Changed
- ci: download js-api artifacts before publish by @siketyan in #6776
- ci: release by @github-actions in #6778
- fix(noFocusedTests): fix
fitfalse positive by @dyc3 in #6761
Full Changelog: https://github.com/biomejs/biome/compare/@biomejs/[email protected]...@biomejs/[email protected]
JavaScript APIs v2.0.0
2.0.0
Warning
Due to a CI problem, this version is broken and not includes necessary files in the package.
Minor Changes
-
#6535
d8c08e1Thanks @regseb! - Biome's JavaScript Bindings now have specific subpath exports for the three packages:import { Biome } from "@biomejs/js-api/bundler";import { Biome } from "@biomejs/js-api/nodejs";import { Biome } from "@biomejs/js-api/web";
These new subpath exports load only TypeScript declarations, whereas the default export loads declarations for all three packages. This was a problem if you checked your code with
tsc.-
Old usage with default export (no subpath):
import { Biome, Distribution } from "@biomejs/js-api"; const biome = await Biome.create({ distribution: Distribution.NODE });
-
New usage with a specific subpath export:
import { Biome } from "@biomejs/js-api/nodejs"; const biome = new Biome();
Patch Changes
- Updated dependencies []:
- @biomejs/[email protected]
- @biomejs/[email protected]
- @biomejs/[email protected]
What's Changed
- feat(core): support import namespaces by @arendjr in #6303
- feat(core): support
export *syntax by @arendjr in #6311 - fix(linter): prevent false positives in
noMisusedPromisesby @arendjr in #6315 - perf: use
TypeStorein global resolver by @arendjr in #6318 - perf: resolve and map types in single pass by @arendjr in #6319
- perf: deduplicate types by @arendjr in #6324
- chore: add
swrfixtures by @arendjr in #6339 - fix(resolver): resolve type definitions for JavaScript files by @arendjr in #6343
- feat(core): flatten intersections + call signatures by @arendjr in #6404
- perf: preallocate type store by @arendjr in #6421
- perf: store types behind
Arcs by @arendjr in #6442 - feat: add nx.json project.json to Well-known files by @ianzone in #6488
- feat(linter): handle arrays of Promises in
noFloatingPromisesby @arendjr in #6512 - fix(core): handle ternary in type alias by @arendjr in #6520
- fix(core): infer method return types by @arendjr in #6525
- fix(core): infer types of properties with getters by @arendjr in #6531
- chore: add test case by @arendjr in #6532
- feat(core): handle logical operators by @arendjr in #6550
- ci: fix JSON payload release dispatch by @ematipico in #6580
- chore: remove disclaimer on
noFloatingPromisesby @arendjr in #6579 - chore: update
nextby @arendjr in #6581 - feat(biome_js_analyse): added new rule noMagicNumbers by @vladimir-ivanov in #6562
- chore(justfile): adjust indentation and remove extra blank lines in
justfileby @paulo9mv in #6568 - refactor(useSortedKeys): transfer trailing separator upon sorting by @Conaclos in #6587
- fix(lsp): fix all should check for embedded languages by @ematipico in #6594
- feat(core): implement conditional handling by @arendjr in #6593
- chore: update contribution guide to include vladimir ivanov as a maintainer by @vladimir-ivanov in #6564
- fix(biome_js_analyze): fix JsDocTypeCollectorVisitior to also walk on JsStaticMemberAssignment by @daivinhtran in #6600
- docs: add mdevils to maintainers by @mdevils in #6612
- chore(lint): fix document of the
noMagicNumbersrule that produces invalid MDX by @siketyan in #6598 - refactor: extract out a
biome_line_indexcrate by @DavisVaughan in #6222 - fix(biome-js-analyze): fixed the diagnostic message for noFocusedTests to display the offending fn name by @vladimir-ivanov in #6599
- chore: add
syntaxparser directive to Dockerfile by @JamBalaya56562 in #6619 - feat(core): port SyntaxNodePtr and AstPtr from rowan by @rmehri01 in #6534
- fix(biome-js-analyze): detect json import attribute with trimmed text value instead of plain text value by @Shinyaigeek in #6618
- feat(core): targeted file scanner by @arendjr in #6614
- fix(core): fix extending configs with root field by @arendjr in #6625
- chore(deps): pin docker/dockerfile docker tag to 9857836 by @renovate in #6626
- chore(deps): update dependency @types/node to v22.15.34 by @renovate in #6627
- fix(deps): update @biomejs packages by @renovate in #6632
- chore(deps): update rust crate papaya to 0.2.3 by @renovate in #6630
- chore(deps): update rust crate ureq to 3.0.12 by @renovate in #6631
- fix(cli): lax stdin strictness by @ematipico in #6596
- feat(core): infer sequence operator and update operators by @arendjr in #6637
- feat(yaml): overhauling YAML lexer by @vohoanglong0107 in #6481
- feat(wasm): expose MemoryFileSystem via WASM API by @siketyan in #6428
- fix(core): fix inference for boolean that must be truthy by @arendjr in #6641
- fix(biome-js-analyze): update changes by @vladimir-ivanov in #6636
- fix(lsp): add missing checks for capability dynamic registration support by @skewb1k in #6643
- fix(js-api): don't use types of others modules by @regseb in #6535
- refactor: share lint rule options by @ematipico in #5543
- perf: optimise ignore checking by @arendjr in #6659
- chore: merge
nextintomainby @arendjr in #6583 - feat(core): offset parsing by @ematipico in #6652
- fix(formatter): void elements with slash by @ematipico in #6663
- fix(lint/noSecrets): calculate entropy with
entropyThresholdoption by @unvalley in #6642 - fix(biome-js-analyze): move no_secrets options inside biome-rules-opt… by @vladimir-ivanov in #6672
- fix(core): css assist by @ematipico in #6682
- fix(format/html): fix mangling of embedded language tags if
whitespaceSensitivityisstrictby @dyc3 in #6673 - feat(parser): parse Astro frontmatter by @ematipico in #6689
- chore(core): add resource to diagnostic by @ematipico in #6685
- fix(parse/html): make
.a valid char in tag names by @dyc3 in #6693 - fix(formatter): trailing commas in json files by @ematipico in #6683
- feat: make enum can be transform in scope by @cqh963852 in #6678
- fix(biome-js-analyze): useReadonlyClassProperties check class getters… by @vladimir-ivanov in #6671
- feat(biome_js_analyse): added new option to rule to ignore unused function parameters by @vladimir-ivanov in #6405
- fix(core): ignore nested configs by @arendjr in #6662
- fix(lint/noImplicitCoercion): false positive for
1 / valueby @unvalley in #6696 - fix(css_formatter): correct spacing in container style queries by @denbezrukov in #6700
- fix(biome_analyze): stop squashing multiple line suppression comments. by @sterliakov in #6650
- fix(noShadow): fix a false positive related to function parameters inside type definitions by @dyc3 in #6709
- fix(biome_js_analyze): correct text range of suppression reason by @sterliakov in #6711
- fix(service): biome/file_features still should return a map instead of an array by @siketyan in #6718
- fix(lint/complexity/useDateNow): improve error message by @wojtekmaj in #6413
- docs: fix typos in CHANGELOG & CONTRIBUTING by @noritaka1166 in https://github.com/biom...
Biome CLI v2.1.1
2.1.1
Patch Changes
-
#6781
9bbd34fThanks @siketyan! - Fixed theFileFeaturesResultinterface in the WASM API was defined as a mapped object but the actual value was aMapobject. -
#6761
cf3c2ceThanks @dyc3! - Fixed #6759, a false positive fornoFocusedTeststhat was triggered by calling any function with the namefiton any object.The following code will now pass the
noFocusedTestsrule:import foo from "foo"; foo.fit();
What's Changed
- ci: correct restore path of the artifact by @siketyan in #6780
- fix(wasm): serialize map as a plain object by @siketyan in #6781
- ci: release by @github-actions in #6779
- docs: update contribution guide and pull request template by @ematipico in #6664
Full Changelog: https://github.com/biomejs/biome/compare/@biomejs/[email protected]...@biomejs/[email protected]
Biome CLI v2.1.0
2.1.0
Minor Changes
-
#6512
0c0bf82Thanks @arendjr! - The rulenoFloatingPromisescan now detect floating arrays ofPromises.Invalid examples
// This gets flagged because the Promises are not handled. [1, 2, 3].map(async (x) => x + 1);
Valid examples
await Promise.all([1, 2, 3].map(async (x) => x + 1));
-
#6637
6918085Thanks @arendjr! - Type inference is now able to handle the sequence operator (,), as well as post- and pre-update operators:++.Example
let x = 5; // We now infer that `x++` resolves to a number, while the expression as a whole // becomes a Promise: x++, new Promise((resolve) => resolve("comma"));
-
#6752
c9eaca4Thanks @arendjr! - Fixed #6646:.gitignorefiles are now picked up even when running Biome from a nested directory, or when the ignore file itself is ignored throughfiles.includes. -
#6746
90aeeadThanks @arendjr! -biome migrateno longer enables style rules that were recommended in v1, because that would be undesirable for users upgrading from 2.0.Users who are upgrading from Biome 1.x are therefore advised to first upgrade to Biome 2.0, and run the migration, before continuing to Biome 2.1 or later.
-
#6583
d415a3fThanks @arendjr! - Added the nursery rulenoMisusedPromises.It signals
Promises in places where conditionals or iterables are expected.Invalid examples
const promise = Promise.resolve("value"); // Using a `Promise` as conditional is always truthy: if (promise) { /* ... */ } // Spreading a `Promise` has no effect: console.log({ foo: 42, ...promise }); // This does not `await` the `Promise`s from the callbacks, // so it does not behave as you may expect: [1, 2, 3].forEach(async (value) => { await fetch(`/${value}`); });
Valid examples
const promise = Promise.resolve("value"); if (await promise) { /* ... */ } console.log({ foo: 42, ...(await promise) });
-
#6405
cd4a9bbThanks @vladimir-ivanov! - Added theignoreRestSiblingsoption to thenoUnusedFunctionParametersrule.This option is used to ignore unused function parameters that are siblings of the rest parameter.
The default is
false, which means that unused function parameters that are siblings of the rest parameter will be reported.Example
{ "rules": { "noUnusedFunctionParameters": ["error", { "ignoreRestSiblings": true }] } } -
#6614
0840021Thanks @arendjr! - We have implemented a more targeted version of the scanner, which ensures that if you provide file paths to handle on the CLI, the scanner will exclude directories that are not relevant to those paths.Note that for many commands, such as
biome checkandbiome format, the file paths to handle are implicitly set to the current working directory if you do not provide any path explicitly. The targeted scanner also works with such implicit paths, which means that if you run Biome from a subfolder, other folders that are part of the project are automatically exempted.Use cases where you invoke Biome from the root of the project without providing a path, as well as those where project rules are enabled, are not expected to see performance benefits from this.
-
#6488
c5ee385Thanks @ianzone! -nx.jsonandproject.jsonhave been added to the list of well-known files. -
#6720
52e36aeThanks @minht11! - Added# @biomejs/biome symbol to [organizeImports](https://biomejs.dev/assist/actions/organize-imports):ALIAS:` group.import { action } from '$lib'will be treated as alias import.
Patch Changes
-
#6712
2649ac6Thanks @sterliakov! - Fixed #6595: Biome now supports// biome-ignore-allfile-level suppressions in files that start with a shebang (#!). -
#6758
28dc49eThanks @arendjr! - Fixed #6573: Grit plugins can now match bare imports.Example
The following snippet:
`import $source`will now match:
import "main.css";
-
#6550
b424f46Thanks @arendjr! - Type inference is now able to handle logical expressions:&&,||, and??.Examples
// We can now infer that because `true` is truthy, the entire expression // evaluates to a `Promise`. true && Promise.reject("logical operator bypass"); // And we know that this doesn't: false && Promise.reject("logical operator bypass"); // Truthiness, falsiness, and non-nullishness can all be determined on more // complex expressions as well. So the following also works: type Nullish = null | undefined; type Params = { booleanOption: boolean | Nullish; falsyOption: false | Nullish; }; function foo({ booleanOption, falsyOption }: Params) { // This may be a Promise: booleanOption ?? Promise.reject("logical operator bypass"); // But this never is: falsyOption && Promise.reject("logical operator bypass"); }
-
#6413
4aa0e50Thanks @wojtekmaj! - Improved error message inuseDateNowrule. -
#6673
341e062Thanks @dyc3! - Fixed a case where the HTML formatter would mangle embedded language tags ifwhitespaceSensitivitywas set tostrict -
#6642
a991229Thanks @unvalley! - Fixed #4494: ThenoSecretsrule now correctly uses theentropyThresholdoption to detect secret like strings. -
#6520
0c43545Thanks @arendjr! - Type inference is now able to handle ternary conditions in type aliases.Note that we don't attempt to evaluate the condition itself. The resulting type is simply a union of both conditional outcomes.
Example
type MaybeResult<T> = T extends Function ? Promise<string> : undefined; // We can now detect this function _might_ return a `Promise`: function doStuff<T>(input: T): MaybeResult<T> { /* ... */ }
-
#6711
1937691Thanks @sterliakov! - Fixed #6654: Fixed range highlighting of<explanation>placeholder in inline suppression block comments. -
#6756
d12b26fThanks @dyc3! - Fixed #6669: Added an exception tonoUnusedImportsto allow type augmentation imports.import type {} from "@mui/lab/themeAugmentation";
-
#6643
df15ad6Thanks @skewb1k! - Fixed [#4994]([https://github.co...
Biome CLI v2.0.6
2.0.6
Patch Changes
-
#6557
fd68458Thanks @ematipico! - Fixed a bug where Biome didn't provide all the available code actions when requested by the editor. -
#6511
72623faThanks @Conaclos! - Fixed #6492. The
organizeImportsassist action no longer duplicates a comment at the start of
the file when:BLANK_LINE:precedes the first import group. -
#6557
fd68458Thanks @ematipico! - Fixed #6287 where Biome Language Server didn't adhere to thesettings.requireConfigurationoption when pulling diagnostics and code actions.
Note that for this configuration be correctly applied, your editor must support dynamic registration capabilities. -
#6551
0b63b1dThanks @Conaclos! - Fixed #6536.useSortedKeysno longer panics in some edge cases where object spreads are involved. -
#6503
9a8fe0fThanks @ematipico! - Fixed #6482 where nursery rules that belonged to a domain were incorrectly enabled. -
#6565
e85761cThanks @daivinhtran! - Fixed #4677: Now thenoUnusedImportsrule won't produce diagnostics for types used in JSDoc comment of exports. -
#6166
b8cbd83Thanks @mehm8128! - Added the nursery rule noExcessiveLinesPerFunction.
This rule restrict a maximum number of lines of code in a function body.The following code is now reported as invalid when the limit of maximum lines is set to 2:
function foo() { const x = 0; const y = 1; const z = 2; }
The following code is now reported as valid when the limit of maximum lines is set to 3:
const bar = () => { const x = 0; const z = 2; };
-
#6553
5f42630Thanks @denbezrukov! - Fixed #6547. Now the Biome CSS parser correctly parses@starting-stylewhen it's used inside other at-rules. The following example doesn't raise an error anymore:@layer my-demo-layer { @starting-style { div.showing { background-color: red; } } }
-
#6458
05402e3Thanks @ematipico! - Fixed an issue where the ruleuseSemanticElementsused the incorrect range when positioning suppression comments. -
#6560
6d8a6b9Thanks @siketyan! - Fixed #6559: the error message on detected a large file was outdated and referred a removed configuration optionfiles.ignore. -
#6458
05402e3Thanks @ematipico! - Fixed #6384. The ruleuseAltTextnow emits a diagnostic with a correct range, so suppression comments can work correctly. -
#6518
7a56288Thanks @wojtekmaj! - Fixed #6508, where the rulenoUselessFragmentsincorrectly flagged Fragments containing HTML entities as unnecessary. -
#6517
c5217cfThanks @arendjr! - Fixed #6515. When using the
extendsfield to extend a configuration from an NPM package, we now accept the
condition names"biome"and"default"for exporting the configuration in
thepackage.json.This means that where previously your
package.jsonhad to contain an export
declaration similar to this:{ "exports": { ".": "./biome.json" } }You may now use one of these as well:
{ "exports": { ".": { "biome": "./biome.json" } } }Or:
{ "exports": { ".": { "default": "./biome.json" } } } -
#6219
a3a3715Thanks @huangtiandi1999! - Added new nursery rulenoUnassignedVariables, which disallowsletorvarvariables that are read but never assigned.The following code is now reported as invalid:
let x; if (x) { console.log(1); }
The following code is now reported as valid:
let x = 1; if (x) { console.log(1); }
-
#6395
f62e748Thanks @mdevils! - Added the new nursery rulenoImplicitCoercion, which disallows shorthand type conversions in favor of explicit type conversion functions.Example (Invalid): Boolean conversion using double negation:
!!foo; !!(foo + bar);
Example (Invalid): Number conversion using unary operators:
+foo; -(-foo); foo - 0; foo * 1; foo / 1;
Example (Invalid): String conversion using concatenation:
"" + foo; foo + ""; `` + foo; foo += "";
Example (Invalid): Index checking using bitwise NOT:
~foo.indexOf(1); ~foo.bar.indexOf(2);
Example (Valid): Using explicit type conversion functions:
Boolean(foo); Number(foo); String(foo); foo.indexOf(1) !== -1;
-
#6544
f28b075Thanks @daivinhtran! - Fixed #6536. Now the rulenoUselessFragmentsproduces diagnostics for a top-level useless fragment that is in a return statement. -
#6320
5705f1aThanks @mdevils! - Added the new nursery ruleuseUnifiedTypeSignature, which disallows overload signatures that can be unified into a single signature.Overload signatures that can be merged into a single signature are redundant and should be avoided. This rule helps simplify function signatures by combining overloads by making parameters optional and/or using type unions.
Example (Invalid): Overload signatures that can be unified:
function f(a: number): void; function f(a: string): void;
interface I { a(): void; a(x: number): void; }
Example (Valid): Unified signatures:
function f(a: number | string): void {}
interface I { a(x?: number): void; }
Example (Valid): Different return types cannot be merged:
interface I { f(): void; f(x: number): number; }
-
#6545
2782175Thanks @ematipico! - Fixed #6529, where the Biome Language Server would emit an error when the user would open a file that isn't part of its workspace (node_modulesor external files).
Now the language server doesn't emit any errors and it exits gracefully. -
#6524
a27b825Thanks @vladimir-ivanov! - Fixed #6500: TheuseReadonlyClassPropertiesrule now correctly marks class properties asreadonlywhen they are assigned ...