2.11.0 (2019-12-09)

Bug Fixes

• eslint-plugin: [brace-style] handle enum declarations (#1281) (3ddf1a2)

Features

• eslint-plugin: [member-ordering] add index signature (#1190) (b5a52a3)

2.10.0 (2019-12-02)

Bug Fixes

• eslint-plugin: [no-empty-function] add missed node types (#1271) (e9d44f5)
• eslint-plugin: [no-untyped-pub-sig] ignore set return (#1264) (6daff10)
• eslint-plugin: [no-unused-expressions] ignore directives (#1285) (ce4c803)
• eslint-plugin: [prefer-optional-chain] allow $ in identifiers (c72c3c1)
• eslint-plugin: [prefer-optional-chain] handle more cases (#1261) (57ddba3)
• eslint-plugin: [return-await] allow Any and Unknown (#1270) (ebf5e0a)
• eslint-plugin: [strict-bool-expr] allow nullish coalescing (#1275) (3b39340)
• typescript-estree: make FunctionDeclaration.body non-null (#1288) (dc73510)

Features

• eslint-plugin: [no-empty-func] private/protected construct (#1267) (3b931ac)
• eslint-plugin: [no-non-null-assert] add suggestion fixer (#1260) (e350a21)
• eslint-plugin: [no-unnec-cond] support nullish coalescing (#1148) (96ef1e7)
• eslint-plugin: [prefer-null-coal] opt for suggestion fixer (#1272) (f84eb96)
• experimental-utils: add isSpaceBetween declaration to Sou… (#1268) (f83f04b)

2.9.0 (2019-11-25)

Bug Fixes

• eslint-plugin: [no-dynamic-delete] correct invalid fixer for identifiers (#1244) (5b1300d)
• eslint-plugin: [no-untyped-pub-sig] constructor return (#1231) (6cfd468)
• eslint-plugin: [prefer-optional-chain] unhandled cases (b1a065f)
• eslint-plugin: [req-await] crash on nonasync promise return (#1228) (56c00b3)
• typescript-estree: fix synthetic default import (#1245) (d97f809)

Features

• eslint-plugin: [camelcase] add genericType option (#925) (d785c61)
• eslint-plugin: [no-empty-interface] noEmptyWithSuper fixer (#1247) (b91b0ba)
• eslint-plugin: [no-extran-class] add allowWithDecorator opt (#886) (f1ab9a2)
• eslint-plugin: [no-unnece-cond] Add allowConstantLoopConditions (#1029) (ceb6f1c)
• eslint-plugin: [restrict-plus-operands] check += (#892) (fa88cb9)
• suggestion types, suggestions for no-explicit-any (#1250) (b16a4b6)
• eslint-plugin: add no-extra-non-null-assertion (#1183) (2b3b5d6)
• eslint-plugin: add no-unused-vars-experimental (#688) (05ebea5)
• eslint-plugin: add prefer-nullish-coalescing (#1069) (a9cd399)
• eslint-plugin: add return-await rule (#1050) (0ff4620)
• eslint-plugin: add rule prefer-optional-chain (#1213) (ad7e1a7)
• eslint-plugin: optional chain support in rules (part 1) (#1253) (f5c0e02)

2.8.0 (2019-11-18)

Bug Fixes

• eslint-plugin: [camelcase] handle optional member expr (#1204) (9c8203f)
• eslint-plugin: [indent] fix decorator type (#1189) (e2008e3)
• eslint-plugin: [indent] handle empty generic declarations (#1211) (9aee06c)
• eslint-plugin: [no-type-alias] handle constructor aliases (#1198) (1bb4d63)
• eslint-plugin: [no-unnec-type-arg] throwing on call/new expr (#1217) (42a48de)
• eslint-plugin: [no-unnecessary-cond] fix naked type param (#1207) (4fac6c5)
• eslint-plugin: [nuta] correctly handle null/undefined separation (#1201) (9829dd3)
• eslint-plugin: [require-await] better handle nesting (#1193) (eb83af1)
• eslint-plugin: [unified-signatures] crash: cannot read pro… (#1096) (d1de3a7)
• eslint-plugin: disable base no-unused-expressions in all config (ecb3f4e)
• typescript-estree: correctly account for trailing slash in… (#1205) (ba89168)
• typescript-estree: options range loc being always true (#704) (db1aa18)

Features

• eslint-plugin: [no-type-alias] handle conditional types (#953) (259ff20)
• eslint-plugin: add rule restrict-template-expressions (#850) (46b58b4)
• eslint-plugin: add space-before-function-paren [extension] (#924) (d8b07a7)
• eslint-plugin: added new rule no-dynamic-delete (#565) (864c811)
• eslint-plugin: added new rule no-untyped-public-signature (#801) (c5835f3)

2.7.0 (2019-11-11)

Bug Fixes

• eslint-plugin: crash fixing readonly arrays to generic (#1172) (2b2f2d7)
• typescript-estree: hash code to reduce update frequency (#1179) (96d1cc3)
• typescript-estree: reduce bundle footprint of tsutils (#1177) (c8fe515)

Features

• eslint-plugin: [no-unused-expressions] extend for optional chaining (#1175) (57d63b7)
• parser: handle optional chaining in scope analysis (#1169) (026ceb9)

2.6.1 (2019-11-04)

Bug Fixes

• typescript-estree: don't use typescript's synthetic default (#1156) (17c956e), closes #1153
• typescript-estree: fix filename handling for vue JSX + markdown (#1127) (366518f)
• typescript-estree: improve comment parsing code (#1120) (e54998d)

2.6.0 (2019-10-28)

Bug Fixes

• parser: adds TTY check before logging the version mismatch warning (#1121) (768ef63)
• typescript-estree: better handle canonical paths (#1111) (8dcbf4c)
• typescript-estree: correct parenthesized optional chain AST (#1141) (5ae286e)
• typescript-estree: ensure parent pointers are set (#1129) (d4703e1)
• typescript-estree: normalize paths to fix cache miss on windows (#1128) (6d0f2ce)

Features

• typescript-estree: add support for declare class properties (#1136) (1508670)

2.5.0 (2019-10-21)

Bug Fixes

• eslint-plugin: [no-magic-numbers] Support negative numbers (#1072) (0c85ac3)
• typescript-estree: correct semver check range (#1109) (2fc9bd2)
• typescript-estree: handle running out of fs watchers (#1088) (ec62747)
• typescript-estree: parsing error for vue sfc (#1083) (7a8cce6)
• typescript-estree: remove now unneeded dep on chokidar (088a691)

Features

• eslint-plugin: Support abstract members in member-ordering rule (#395) (#1004) (5f093ac)
• typescript-estree: support long running lint without watch (#1106) (ed5564d)

2.4.0 (2019-10-14)

Bug Fixes

• eslint-plugin: [promise-function-async] Should not report… (#1023) (514bed9)
• support long running "watch" lint sessions (#973) (854620e)

Features

• typescript-estree: support for parsing 3.7 features (#1045) (623febf)

2.3.3 (2019-10-07)

Bug Fixes

• eslint-plugin: [class-name-casing] allow unicode letters (#1043) (47895c0)
• eslint-plugin: [efrt] support constructor arguments (#1021) (60943e6)
• experimental-utils: remove Rule.meta.extraDescription (#1036) (192e23d)

2.3.2 (2019-09-30)

Bug Fixes

• eslint-plugin: [no-unnec-type-arg] undefined symbol crash (#1007) (cdf9294)
• typescript-estree: correct ClassDeclarationBase type (#1008) (8ce3a81)
• typescript-estree: handle optional computed prop w/o type (#1026) (95c13fe)

2.3.1 (2019-09-23)

Bug Fixes

• eslint-plugin: [cons-type-assns] handle namespaced types (#975) (c3c8b86)
• eslint-plugin: [pfa] Allow async getter/setter in classes (#980) (e348cb2)
• typescript-estree: parsing error for await in non-async func (#988) (19abbe0)

2.3.0 (2019-09-16)

Bug Fixes

• typescript-estree: ImportDeclaration.specifier to Literal (#974) (2bf8231)

Features

• eslint-plugin: [explicit-member-accessibility] add support of "ignoredMethodNames" (#895) (46ee4c9)
• eslint-plugin: [no-floating-promises] Add ignoreVoid option (#796) (6a55921)
• eslint-plugin: [no-magic-numbers] add ignoreReadonlyClassProperties option (#938) (aeea4cd)
• eslint-plugin: [strict-boolean-expressions] Add allowNullable option (#794) (c713ca4)
• eslint-plugin: add no-unnecessary-condition rule (#699) (5715482)

2.2.0 (2019-09-09)

Bug Fixes

• eslint-plugin: [efrt] allowExpressions - check functions in class field properties (#952) (f1059d8)
• eslint-plugin: [expl-member-a11y] fix parameter properties (#912) (ccb98d8)
• eslint-plugin: [prefer-readonly] add handling for destructuring assignments (e011e90)

Features

• eslint-plugin: add brace-style [extension] (#810) (e01dc5f)

2.1.0 (2019-09-02)

Bug Fixes

• eslint-plugin: [member-naming] should match constructor args (#771) (b006667)
• eslint-plugin: [no-inferrable-types] ignore optional props (#918) (a4e625f)
• eslint-plugin: [promise-function-async] Allow async get/set (#820) (cddfdca)
• eslint-plugin: [require-await] Allow concise arrow function bodies (#826) (29fddfd)
• eslint-plugin: [typedef] don't flag destructuring when variables is disabled (#819) (5603473)
• eslint-plugin: [typedef] handle AssignmentPattern inside TSParameterProperty (#923) (6bd7f2d)
• eslint-plugin: [unbound-method] Allow typeof expressions (Fixes #692) (#904) (344bafe)
• eslint-plugin: [unbound-method] false positive in equality comparisons (#914) (29a01b8)
• eslint-plugin: [unified-signatures] type comparison and exported nodes (#839) (580eceb)
• eslint-plugin: readme typo (#867) (5eb40dc)
• typescript-estree: improve missing project file error msg (#866) (8f3b0a8), closes #853

Features

• [no-unnecessary-type-assertion] allow as const arrow functions (#876) (14c6f80)
• eslint-plugin: [expl-func-ret-type] make error loc smaller (#919) (65eb993)
• eslint-plugin: [no-type-alias] support tuples (#775) (c68e033)
• eslint-plugin: add quotes [extension] (#762) (9f82099)
• typescript-estree: Accept a glob pattern for options.project (#806) (9e5f21e)

2.0.0 (2019-08-13)

BREAKING CHANGES

• Node 6 is no longer supported.
  • Node 6 is now end of life. With the release of ESLint v6, they have dropped support for Node 6. As such, we have also dropped Node 6 from our testing pipeline. Please consider upgrading to a supported version of Node. See this page for more information about node version lifecycle and dates.
• parser / typescript-estree:
  • When project is specified within parserOptions, we will now hard fail when parsing files that are not included within the provided tsconfig(s).
  • We discovered that this was a common performance pitfall, and could increase lint times by huge amounts.
  • To handle this, there are a few possible solutions:
    1. Improve the includes field within your tsconfig(s) so that all the files you want to lint are included.
    2. Create a new tsconfig.eslint.json which you pass into parserOptions.project, which includes all of the files you want to lint, e.g.:

       {
         // extend your base config so you don't have to redefine your compilerOptions
         "extends": "./tsconfig.json",
         "include": [
           "src/**/*.ts",
           "test/**/*.ts",
           "typings/**/*.ts"
           // etc
         ],
         // IF (and only if) you have a mixed JS/TS codebase - you should also turn on JS support
         "compilerOptions": {
           "allowJs": true,
           "checkJs": true
         }
       }
       

       If you are using non standard file extensions (i.e. .vue files), you should add the following config to your .eslintrc file:

       {
         "parserOptions": {
           "extraFileExtensions": [".vue"]
         }
       }
       

• eslint-plugin:
  • Removed hardcoded checks which prevented some rules from running on non-TypeScript files (i.e. files that are not *.ts/*.tsx).
    • Some users with mixed TS/JS codebases may now see some TypeScript-specific rules being reported against JS files.
    • Please use ESLint's "overrides" config to select which files to apply rules to.
  • Removed deprecated rule prefer-interface. This rule was replaced by consistent-type-definitions.
  • Removed deprecated rule no-triple-slash-reference. This rule was replaced by triple-slash-reference
  • Merged both no-angle-bracket-type-assertion and no-object-literal-type-assertion into one rule - consistent-type-assertions.
  • explicit-function-return-type no longer treats export default () => {} as an expression for the purposes of the allowExpressions option.
  • Changed a number of the default rule configs:
    • explicit-function-return-type - allowTypedFunctionExpressions and allowHigherOrderFunctions are now both true by default.
    • no-inferrable-types - ignoreParameters and ignoreProperties are now both false by default.
    • no-this-alias - allowDestructuring is now true by default.
  • Reworked the recommended configs:
    • plugin:@typescript-eslint/recommended
      • This is our slim, recommended set of rules. This config does not require type information, so it can be easily dropped into an existing config.
    • plugin:@typescript-eslint/recommended-requiring-type-checking
      • This is a slightly expanded set of rules, intended to be used in conjunction with plugin:@typescript-eslint/recommended. These rules specifically require type information. We separated these rules into a separate config to ease adoption and to make the base recommended "fast-by-default".
    • plugin:@typescript-eslint/eslint-recommended
      • This config is a compatibility config that disables rules from eslint:recommended which are already handled by TypeScript.
    • plugin:@typescript-eslint/all
      • This config simply turns on every single rule available in the plugin.
    • The intention is that you can use all the configs together, as they build upon one-another:

      {
        "extends": [
          "eslint:recommended",
          "plugin:@typescript-eslint/eslint-recommended",
          "plugin:@typescript-eslint/recommended",
          "plugin:@typescript-eslint/recommended-requiring-type-checking"
        ]
      }
      

Bug Fixes

• eslint-plugin: [efrt] flag default export w/ allowExpressions (#831) (ebbcc01)
• eslint-plugin: [no-explicit-any] Fix ignoreRestArgs for interfaces (#777) (22e9ae5)
• eslint-plugin: [no-useless-constructor] handle bodyless constructor (#685) (55e788c)
• eslint-plugin: [prefer-readonly] TypeError when having computed member expression (#761) (211b1b5)
• eslint-plugin: [typedef] support for..in, for..of (#787) (39e41b5)
• eslint-plugin: [typedef] support default value for parameter (#785) (84916e6)
• eslint-plugin: add Literal to RuleListener types (#824) (3c902a1)
• typescript-estree: fix is token typed as Keyword (#750) (35dec52)
• typescript-estree: jsx comment parsing (#703) (0cfc48e)
• utils: add ES2019 as valid ecmaVersion (#746) (d11fbbe)

Features

• explicitly support eslint v6 (#645) (34a7cf6)
• eslint-plugin: [interface-name-prefix, class-name-casing] Add allowUnderscorePrefix option to support private declarations (#790) (0c4f474)
• eslint-plugin: [no-var-requires] report on foo(require('')) (#725) (b2ca20d), closes #665
• eslint-plugin: [promise-function-async] make allowAny default true (#733) (590ca50)
• eslint-plugin: [strict-boolean-expressions] add ignoreRhs option (#691) (fd6be42)
• eslint-plugin: add support for object props in CallExpressions (#728) (8141f01)
• eslint-plugin: added new rule typedef (#581) (35cc99b)
• eslint-plugin: added new rule use-default-type-parameter (#562) (2b942ba)
• eslint-plugin: move opinionated rules between configs (#595) (4893aec)
• eslint-plugin: remove deprecated rules (#739) (e32c7ad)
• eslint-plugin: [array-type] rework options (#654) (1389393), closes #654 #635
• eslint-plugin: add rule consistent-type-assertions (#731) (92e98de), closes #731
• eslint-plugin: change recommended config (#729) (428567d), closes #729
• eslint-plugin: recommended-requiring-type-checking config (#846) (d3470c9), closes #846
• typescript-estree: throw error on file not in project when project set (#760) (3777b77), closes #760

1.13.0 (2019-07-21)

Bug Fixes

• Correct @types/json-schema dependency (#675) (a5398ce)
• eslint-plugin: remove imports from typescript-estree (#706) (ceb2d32), closes #705
• eslint-plugin: undo breaking changes to recommended config (93f72e3)
• utils: move typescript from peer dep to dev dep (#712) (f949355)
• utils: RuleTester should not require a parser (#713) (158a417)

Features

• eslint-plugin: add new rule no-misused-promises (#612) (28a131d)
• eslint-plugin: add new rule require-await (#674) (807bc2d)

1.12.0 (2019-07-12)

Bug Fixes

• eslint-plugin: handle const; (#633) (430d628), closes #441
• typescript-estree: fix async identifier token typed as Keyword (#681) (6de19d3)

Features

• eslint-plugin: [ban-types] Support namespaced type (#616) (e325b72)
• eslint-plugin: [explicit-function-return-type] add handling for usage as arguments (#680) (e0aeb18)
• eslint-plugin: [no-explicit-any] Add an optional fixer (#609) (606fc70)
• eslint-plugin: Add rule triple-slash-reference (#625) (af70a59)
• eslint-plugin: add rule strict-boolean-expressions (#579) (34e7d1e)
• eslint-plugin: added new rule prefer-readonly (#555) (76b89a5)

1.11.0 (2019-06-23)

Bug Fixes

• eslint-plugin: [no-magic-numbers] add support for enums (#543) (5c40d01)
• eslint-plugin: [promise-function-async] allow any as return value (#553) (9a387b0)
• eslint-plugin: Remove duplicated code (#611) (c4df4ff)
• parser: add simpleTraverse, replaces private ESLint util (#628) (aa206c4)
• typescript-estree: fix more cases with double slash in JSX text (#607) (34cfa53)

Features

• eslint-plugin: [no-explicit-any] ignoreRestArgs (#548) (753ad75)
• eslint-plugin: add consistent-type-definitions rule (#463) (ec87d06)
• eslint-plugin: add new rule no-empty-function (#626) (747bfcb)
• eslint-plugin: add new rule no-floating-promises (#495) (61e6385)

1.10.2 (2019-06-10)

Bug Fixes

• eslint-plugin: peerDep should specify semver major range (#602) (5589938)