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^0.5.3 (#4918)no-object-literal-type-assertion fix typo in rule description (#4911)Thanks to our contributors!
This version has been marked as deprecated on NPM to encourage users to migrate to ESLint.
enforce-trailing-newline option in file-header rule (#4890)writeFileSync on macOS 10.15 (#4887)completed-docs rule when tag contents are undefined (#4895)[error] in testing rules documentation (#4903)Thanks to our contributors!
No changes from v6.0.0-beta0, just re-released to correctly mark with the beta and next dist-tags on NPM.
tslint:recommended configuration (#4871)tslint:recommended configuration (#4312)vso formatter now reports severity of rule failures (#4286)typedef rule arrow-call-signature option is more consistent in reporting errors on lambdas and will flag more violations that were missed in the previous rule implementation (#4533)ordered-imports is now consistent with TypeScript's Organise Imports ordering (#4064)member-ordering now checks property accessors (getters and setters) (#3984)tslint:all configuration (#4862)no-redundant-jsdoc allow @author tag (#4854)RuleFailure#toJson() no longer forces rule severity to be an uppercase string (#2622)return-undefined rule now works with TS 3.7 (#4866)prefer-switch is more lenient with if statements containing multiple OR conditions without any else clause (#4873)completed-doc: add support for constructor documentation (#4861)case-insensitive-legacy for ordered-imports rule (#4064)import-blacklist: add some options examples (#4858)Thanks to our contributors!
No changes from v5.20.0, just re-released to correctly mark with the latest dist-tag on NPM.
strict-boolean-expressions false positive with "ignore-rhs" option (#4833)no-unnecessary-type-assertion no error when "strict": true in compiler flags (#4841)file-name-casing rule works correctly (#4848)array-type false positive for simple parenthesized types with "array-simple" option (#4844)object-literal-shorthand supports {"property"?: "never", "method"?: "never"} as config options (#4842)allow-generics option for invalid-void rule (#4839)check-super-calls option for unnecessary-constructor rule (#4813)diff dependency to v4.0.1 (#4845, #4852)Thanks to our contributors!
promise-function-async for short parenthesized arrow functions (#4765)no-async-without-await false positive for abstract methods (#4782)strict-comparisons false positive for null and undefined literals (#4786)no-angle-bracket-type-assertion autofix semantics with more parentheses (#4823)restrict-plus-operands rule (#4814)await-promise now supports new TypeScript 3.6 AST API symbols for async iterators (#4800)check-strings and check-regex options for max-line-length rule (#4798)variable-declaration-ignore-function option for typedef rule (#4769)ignore-blank-lines option for object-literal-sort-keys rule (#4808)no-for-in (#4747)invalid-void (#4736)strict-string-expressions reports errors on type coercions found in string expressions (#4807)no-promise-as-boolean (#4790)Thanks to our contributors!
--print-config CLI flag (#4744)no-unnecessary-type-assertion no longer flags x! non-null assertions if --strictNullChecks is not enabled (#3724)quotemark handles unbalanced quotes more gracefully without crashing (#4344)no-magic-numbers rule ignores arguments passed into default Number methods (#3668)comment-format (#3583)"allow-trailing-lowercase" option for comment-format rule (#3583)"ignore-accessors" for adjacent-overload-signatures to ignore getters / setters overloads (#3718)no-async-without-await (#3945)strict-comparisons (#4519)Thanks to our contributors!
quotemark backtic option now ignores enum members, use strict declarations, lookup types, and strings containing octal escape sequences. (#4693)no-redundant-jsdoc no longer errors on JSDocThisTag (#4690)no-use-before-declare rule for typescript >= 2.9.0 (#4695)variable-name rule metadata (#4731)no-unused-variable argument count (#4683)no-object-literal-type-assertion (#4681)unnecessary-constructor (#4694)Thanks to our contributors!
quotemark backtick edge cases and fix behavior for TS < 2.7.1 (#4642)interface-name rule related to numeric characters in interface names (#4655, #4626)nyc from v10.2.0 to v13.3.0 (#4633)restrict-plus-operands rule. (#4635)comment-format rule now whitelists //region comments generated by JetBrains IDE (#4609)no-null-undefined-union rule. (#4625)allow-else-if option for unnecessary-else rule (#4599)switch-default rule (#4650)no-parameter-properties: fix unclear rule description (#4629)Thanks to our contributors!
WalkContext and AbstractWalker type parameter defaults to void (#2600)no-void-expression now allows conditional expressions (#4606)ordered-imports (#4583)static-this false positive for higher order components (#4580)unnecessary-else from blank if statements (#4603)unnecessary-else after non-jumping statement (#4603)interface-name now handles interface starting with "I18n" correctly (#4486)no-string-throw fix inserts whitespace if not present after throw keyword (#4540)quotemark: fix some edge cases for backtick option (#4618)unnecessary-constructor: don't flag non-private constructors that are actually necessary (#4619)allow-single-line-comments option for file-header rule (#4560)ignore-rest-args option for no-any rule (#4581)no-null-undefined-union (#4589)Thanks to our contributors!
backtick option for quotemark rule no longer incorrectly flags string literals that must use single/double quotes (#4535)whitespace rule now lints export statements (#4554)no-trailing-whitespace no longer flags files starting with a byte order mark (#4543)promise-function-async now allows single statement lamda functions that delegate to another promise-returning function (#4553)whitespace rule (#4551)underscore option for no-shadowed-variable rule to ignore shadowed underscores (#4546)require-const-for-all-caps option for variable-name rule (#2936)overloads option for completed-docs rule to enforce documentation of each overload signature (#4563)allow-namespace-imports option for no-duplicate-imports rule (#4524)allow-arguments option for no-object-literal-type-assertion rule to allow type assertions on object literals used inside call expressions (#4521)allow-delete option for no-unbound-method rule (#4548)no-tautology-expression (#4470)static-this (#4475)unnecessary-else (#4502)Thanks to our contributors!
RuleWalker and ProgramAwareRuleWalker as deprecated (#4413)--out CLI flag) does not exist. (#4507)jsRules: true (#4517)unknown is recognized as simple type in array-type (#4433)ban: Fix a false positive which would occur when banning method calls nested inside objects. Previously, banning ["a", "b", "c"] would trigger lint failures on the syntax b.c(), which was not the intent of this rule. (#4383)trailing-comma no longer crashes if it cannot find the closing parenthesis of a function declaration (#4457)no-unsafe-any: allow implicitly downcasting any to unknown (#4442)grouped-imports to tslint:all (#4420)ordered-imports now supports a groups option to provide custom grouping rules. (#4134)completed-docs to an untyped rule (#3557)array-type rule handles Typescript 3.0's unknown type properly (#4219)import-blacklist now supports regular expression patterns for blacklisting (#3504)no-restricted-globals (#3824)newline-before-return rule (#4482)number-literal-format now includes auto fix (#4496)whitelist option to no-unbound-method (#4472)jsx-ignore option to no-magic-numbers rule (#4460)object-literal-sort-keys: Add match-declaration-order-only option (#3748)strict-boolean-expressions accepts ignore-rhs option to disable checking the right-hand side of the && and || operators as strictly boolean. (#4159)Thanks to our contributors!
increment-decrement rule (#4415)strict-type-predicates with unknown (#4444).json files to avoid problems with --resolveJsonModule compiler option (#4001)quotemark issues when using backticks with the avoid-template option (#4408)Thanks to our contributors!
type-literal-delimiter (#3964)whitespace Add whitespace rule for open braces (#4068)file-name-casing: Add file name whitelist (#4206)object-literal-sort-keys: locale-compare (#4193)strict-boolean-expressions adds allow-enum to allow using enums in boolean expressions (#3604)import-blacklist: support blacklisting specific named exports (#3926)type-literal-delimiter: Add { singleLine: "always" | "never"} (#3964)file-name-casing: Add snake-case option (#4081)file-header: Enforce Blank Line after File Header (#3740)ban-ts-ignore (#3728)function-constructor (#4198)increment-decrement (#3575)no-default-import (#4023)unnecessary-constructor (#3647)comment-type (#4008)unnecessary-bind (#3588)exclude to work with node API (#4143)@ symbol (#4192)return-undefined rule (#4370)prefer-method-signature: Correct the auto-fix code of rule, now capable to handle multiline signature. (#4066)node_modules folder that are symlinked to another location where their dependencies are satisfied. (#4295)no-invalid-this: fixes false positives on method-like syntax and false negatives on nested functions (#4034)one-line: Check block in a case clause (#3619)whitespace Don't require space between import and paren with in type imports (#4243)no-unused-variable from tslint:all (#4079)callable-types support interfaces containing a single construct signature (#4291) (#4352)ordered-imports: Setting import-sources-order: any no longer invalidates grouped-imports: true (#4374)homepage to package.json (#4101)ordered-imports: When grouped-imports option of the rule is set, the fact that imports of the same type are all in one group is also checked. (#3733)<<: to be used to merge anchors (#4350)line:column instead of [line, column] (#4222)Thanks to our contributors!
no-unused-variable is deprecated because typescript now covers most of its functionality (#3919)file-name-casing (#3978)switch-final-break (#3615)member-ordering and added corresponding tests. (#3935)no-implicit-dependencies (#3979)no-use-before-declare Fixes false positives when using the destructuring syntax (#3761) (#3876)no-empty rule is now properly respecting empty methods (#3897)no-magic-numbers - support for negative zero (#3903)no-implicit-dependencies test failure; typescript@next failure (#4019)no-console rule (#4041)no-floating-promises rule docs. (#3886)prefer-while docs to be semantically correct (#3888)radix rule checks (#3901)no-implicit-dependencies now always considers peer dependencies (#3875)Thanks to our contributors!
prefer-while (#3750)comment-format (#3845)"allow-empty-functions" for no-empty rule (#3624)promise-function-async specifying what kinds of functions to check (#3807)file-header rule plays nice with no-trailing-whitespace rule (#3802)no-unbound-method rule allows square bracket property access (#3610)no-unsafe-any no longer marks native JSX elements as unsafe (#3699)file-header auto-fixes use '!' character to ensure header stays above imports (#3741)no-unused-variable rule (#3831)Thanks to our contributors!
tslint:recommended or tslint:latest by disabling typeof-compare in these rulesets. (#3639)rulesDirectory paths, which fixes usage with tslint-loader. (#3640)src/language/utils.ts have been deprecated (#3476)Significant changes have been made to configuration inheritance to address a long-standing UX issue around defaultSeverity: #2569.
defaultSeverity defined in a tslint.json file will now override the defaultSeverity value defined in any configurations you are extending. This means that any rules specified in the base configurations can now take on a new defaultSeverity if you so choose. If you extend multiple configuration files, the defaultSeverity defined in the last one wins.
In practice, this allows users to, for example, more easily use the built-in TSLint configurations (tslint:recommended, tslint:latest, tslint:all) and treat all errors as warnings instead of errors.
For more details, see the relevant PRs:
defaultSeverity defined in extended configs (#3449)file-header (#3475)no-dynamic-delete (#3573)prefer-readonly (#2896)newline-per-chained-call (#3278)"temporalDeadZone" for no-shadowed-variable to ignore shadowing in the temporal dead zone of classes, parameters, enums and variables declared with let or const (#3389)"shorthand-first" for object-literal-sort-keys (#3607)max-line-length (#3099)--project excludes all files of external dependencies (#3320)tsconfig.json is invalid (#3410)no-implicit-dependencies don't crash on malformed package.json (#3373)strict-type-predicates allows comparing typeof result with non-literals (#3542)no-redundant-jsdoc fixed crash on unhandled tag (#3414)object-literal-sort-keys fixed regression that effectively disabled the rule with \r\n line breaks (#3427)curly fixer now correctly handles comments (#3473)no-unsafe-any fixed false-positive with namespaced types (#3487)no-any (#3486)no-unnecessary-type-assertion fixed false negatives for types with numeric keys (#3468)callable-types adds parentheses when fixing a type literal inside an array type (#3440)no-unsafe-any allows spreading an any value into an object (#3439)arrow-parens fixer (#3618)prefer-const false negative with index signature named like a variable (#3385)whitespace rule checks property declarations if "check-decl" is enabled (#3546)no-duplicate-super rule. (#3544)no-shadowed-variable now excludes declaration files and ambient modules (#3387)no-duplicate-imports Allow duplicate imports from separate ambient module declarations (#3398)await-promise correctly recognises classes extending Promise (#3383)prefer-conditional-expression: don't repeat error on nested if statements (#3528)completed-docs: don't require documentation on methods in object literals (#3532)one-line fixed crash on syntax error in class or interface (#3538)no-redundant-jsdoc allow @template tag if it has a description (#3415)typeof-compare (#3429)"properties" option for completed-docs rule now checks getter and setter accessors. (#3497)no-magic-numbers ignores parseInt radix parameter (#3536)--project option (#3313)stylish-formatter's output jumps to the first failure in that file. (#3491)ban-comma-operator ignores comma operator inside for-loop incrementor (#3485)space-within-parens updated to always allow empty parentheses (). (#3513)completed-docs modifier lists (#3379)ban-comma-operator (#3384)completed-docs rule to use a function instead of a walker (#3466)ban-comma-operator: fix metadata, list as "functionality" rule (#3612)no-use-before-declare documentation to clarify the rule's status (#3520)await-promise options documentation (#3519)hasFix metadata for the indent rule (#3529)no-irregular-whitespace (#3627)Thanks to our contributors!
typeof-compare is deprecated because typescript already does that check (#3286)--type-check is no longer necessary and will be removed in the next major version (#3322)linterOptions configuration field to tslint.json, which supports a list of exclude globs to disable linting for a subset of files (#2409)no-return-await (#3233)no-redundant-jsdoc (#2754)no-duplicate-switch-case (#2937)no-implicit-dependencies (#3343)no-unnecessary-class (#3119)ban-comma-operator (#3250)one-line (#3200)curly (#3262)jsdoc-format adds option "check-multiline-start" to enforce the first line of a multiline JSDoc comment to be empty. (#3181)trailing-comma adds option "esSpecCompliant" to make it compatible with the ES spec regarding trailing commas after object/array rest and rest parameters. (#3176)"check-parameter-property" option for member-access rule (#3325)"strict-bound-class-methods" option for semicolon rule (#3294)"grouped-imports" option for ordered-imports rule (#3138)"ignore-blank-lines" option for no-trailing-whitespace rule (#3346)"never" option for object-literal-shorthand disallows shorthand notation (#3268)"exclude-class-expressions" option for max-classes-per-file rule (#3281)no-unnecessary-type-assertion supports a whitelist of types to ignore (#3257)"module-source-path" for ordered-imports allows sorting imports by trailing end of path (#3178)no-empty-interface allows providing type arguments for extended type (#3260)return-undefined handles union return types in async functions (#3298)deprecation checks correct constructor overload (#3203)return-undefined declared return type takes precedence over contextual type (#3298)inputFilePath as an optional parameter in Configuration.findConfiguration() (#3195)return-undefined fixed regressions: once again allows anything if return type is any (#3298)only-arrow-functions allow function if this is used in parameter initializer (#3315)no-conditional-assignment: exclude intentional assignments, e.g. inside functions (#2629)no-angle-bracket-type-assertion fixer adds parentheses when necessary (#3301)no-angle-bracket-type-assertion fixed order when autofixing consecutive assertions (#3301)vso formatter no longer duplicates output for fixed failures (#3348)no-unbound-method: Allow negation of method (#3349)arrow-parens with option "ban-single-arg-parens" no longer produces invalid code when fixed (#3247)tslint.json stopped at the current directory. (#3309)--test works correctly with any compilerOptions.target (#3296)whitepace handles files with BOM and other irregular whitespace (#3305)callable-types auto fix produces invalid results (#3342)no-string-literal correctly fix property names with leading underscores (#3184)variable-name fixed crash on empty variable name (#3292)trailing-comma fixed crash on arrow function without parens (#3246)space-before-function-paren for anonymous/arrow generic functions (#3085)no-unused-variable along with the noUnusedLocals and noUnusedParameters compiler options (#3227)no-invalid-this ignores functions with a this param (#3267)import-blacklist also checks exports and dynamic imports (#3258)no-conditional-assignment added check for conditional (ternary) expressions (#2629)completed-docs to list doc tags that mark a node as not requiring a documentation body. Tags can also provide a regexp matcher to validate that their contents are docs-valid. (#2415)await-promise enforces that for-await-of is only used with AsyncIterable (#3297)one-line checks type alias declarations (#3200)deprecation checks object destructuring (#3318)no-submodule-imports also checks exports (#3258)restrict-plus-operands: More specific error message when arguments include strings (#3220)no-unsafe-any checks more expressions, for example destructuring, yield, property initializer (#3196)object-literal-sort-keys: allow grouping of object properties via additional blank lines when using alphabetical ordering. (#3191)colors module to chalk module (#3171)no-unused-variable applies the ignorePattern to imports (#3187)Thanks to our contributors!
no-parameter-reassignment (#3045)object-literal-sort-keys: Add match-declaration-order option (#2829)check-type-operator for whitespace rule (#3083)whitespace: Add check-rest-spread option (#3089)AbstractRule#applyWithFunction allows additional parameter that is passed through to walkFn (#3140)AbstractRule#applyWithFunction has better type checking for its type parameter (#2660)member-access autofix now correcly inserts public keyword after decorators (#3162)prefer-const correctly handle catch without binding parameter introduced in typescript@2.5.1 (#3151)no-invalid-template-strings allows backslash-prefixed template expressions (#3116)deprecation no longer shows errors on imports and exports (#3141)deprecation: fix false positive when calling a function or method where another overload is deprecated (#2883)whitespace: fixed "check-separator" for trivial for cases. (#3132)prefer-object-spread prevent spreading this as it is not allowed by the compiler (#3126)msbuild formatter uses backslashes in paths on Windows (#3145)no-namespace ignores global augmentation (#3161)no-submodule-imports allows whitelisting of submodules like @angular/core/testing (#3129)ts-node (#3108)quotemark no longer requires "single" or "double" to be the first option. The rule defaults to "double" if none is specified. (#3114)no-unused-variable autofix removes trailing comments of imports (#3156)no-unnecessary-type-assertion allows certain necessary assertions to prevent type widening (#3120)Thanks to our contributors!
no-duplicate-imports (#3075)no-submodule-imports (#3091)space-within-parens (#2959)member-access (#2969)no-null-keyword: fix x == null to x == undefined (#2802)no-shadowed-variable let's you optionally ignore certain kinds of declarations (#3030)prefer-conditional-expression adds check-else-if (#2963)array-type: consider this to be simple type (#2982)await-promise accepts not only union types but also intersection types with Promise-like types (#2987)callable-types: don't remove export modifier of interfaces (#2962)completed-docs: Only checks variables at the file-level. (#2950)completed-docs: Uses correct visibility of variables. (#2950)no-floating-promises: recognize rejection handler passed as second argument to promise.then() (#3048)no-shadowed-variable don't warn for shadowed type parameter on static class members (#3030)no-shadowed-variable fixed false positive with key name in index signature (#3030)no-shadowed-variable fixed false positive with parameter inside function decorator (#3030)no-unsafe-any: allow truthyness and falsyness checks (#3008)no-unused-variable fixed crash when using destructuring (#3058)one-line correctly handles multiline type parameters (#3004)prefer-for-of fixed false positives when array is modified, e.g. arr[i]++ (#3044)prefer-object-spread adds parens when fixing arrow function return (#3026)prefer-object-spread permit functions as first argument to Object.assign (#3098)space-before-function-paren Handle default exports of functions without names like anonymous functions (fixes #3040) (#3053)./test/parse could not be located due after consumers had run yarn clean (#3072)no-null-keyword allows strict comparison (#2802)no-switch-case-fall-through matches // falls through comments case insensitive and allows trailing text (#2983)ordered-imports: support importEqualsDeclaration (#3102)no-inferrable-types (#2885)prefer-conditional-expression: ignore if-else-if by default. Use the new "check-else-if" option to check nested if statements (#2963)Thanks to our contributors!
Editor's note: This release features an important bugfix for overlapping fixes when using --project and --fix (#2864).
completed-docs: Add enum-members option (#2911)no-this-assignment (#2931)encoding closes files correctly (#2958)whitespace fix whitespace "check-module" to properly lint and fix errors (#2401) (#2825)whitespace: now correctly handles dynamic imports introduced in typescript@2.4.0 (#2924)switch-final-break: don't fail if break jumps to a label outside of the switch (#2914)no-shadowed-variable: exempt this parameter (#2598)prefer-for-of correctly handles variable scopes and other unrelated identifiers (#2984)no-unused-variable autofix removes whole import (#2901)-v option (#2926)no-empty (#2886)prefer-const: handle destructuring in for-of loop initializer as if {"destructuring": "all"} was specified (#2904)no-shadowed-variable: added checks for other shadowing declarations, e.g. interfaces, classes, type parameters, imports, etc. (#2598)no-shadowed-variable no longer fails for declarations in the same scope, e.g. var foo; var foo;. Use the rule no-duplicate-variable to find such errors. (#2598)Thanks to our contributors!
--out file (#2867)unified-signatures: Don't suggest to unify rest parameters. (#2874)binary-expression-operand-order: Allow if both sides of the binary expression are literals. (#2873)whitespace, space-before-function-paren and deprecation (#2893)no-string-literal: Fix documentation (#2875)--exclude options in the CLI (#2855)--version CLI option (#2857)--exclude CLI option when using --project (#2852)--type-check only checks for errors before linting is no longer required to enable rules that use the type checker. You only need to supply --project now.switch-final-break (#2804)use-default-type-parameter (#2253)binary-expression-operand-order (#2805)ban new options format: allows to specify an optional explanation message for function bans, banning nested methods and using a wildcard for object of a method ban (#2547)no-duplicate-variable adds check-parameters option to check if variable has the same name as a parameter (#2597)curly: "as-needed" option (#2842)no-unbound-method add option "ignore-static" (#2751)strict-boolean-expressions adds allow-boolean-or-undefined (#2820)object-literal-shorthand can fix longhand methods (#2558)prefer-object-spread allows constructor, function and method calls and more as first argument to Object.assign (#2828)no-unbound-method walker skips past the parent if it is a cast or parenthesized expression (#2838)object-literal-shorthand: fixed suggestion for generator functions (#2558)no-unused-variable rule on Windows (#2819)tslint --project if allowJs is set in tsconfig.json (#2823)align with option "members": check members of class expressions; don't check semicolons in classes (#2668)no-inferred-empty-object-type: fix stack overflow (#2762)semicolon: don't warn about unnecesary semicolon when it is actually needed, e.g. when followed by type assertion or template string (#2655)space-before-function-paren: Ignore async arrow function with no parentheses (#2833)no-unsafe-any: Don't fail on continue label; (#2830)no-unbound-method: Allow unbound method to be used as a condition (#2834)no-unsafe-any: Allow to switch on a value of type any (#2836)no-unsafe-any: Don't mark declare global {} as an unsafe any. (#2839)indent now checks indentation of expressions inside template strings (#2826)--project (or -p) enables rules that require the type checker. --type-check only checks for errors before linting is no longer required (#2773)deprecation: error message includes deprecation text if available (#2748)cyclomatic-complexity: Don't count empty switch case(#2743)strict-boolean-expressions: Allow any, and true and false literal types (#2758)no-floating-promises: Allow 'promise.catch()' (#2774)comment-format no longer excludes comments with triple slash from linting except /// <reference path="..."/> (#2616)prefer-object-spread: lint more locations where return value is used. (#2828)semicolon: option "never" is now spec compliant (#2655)object-literal-shorthand handles async functions correctly (#2558)--test CLI option: allow passing path to tslint.json (#2784)strict-type-predicates: warn if strictNullChecks is not enabled (#2786)Thanks to our contributors!
not a directory error (#2813)prefer-switch: Change default min-cases to 3. (#2669)outputAbsolutePaths option (#2667)prefer-object-spread (#2624)encoding (#2368)prefer-conditional-expression (#2363)indent support indent size (#2723)object-literal-sort-keys adds ignore-case (#2592)quotemark: Add avoid-template option (#2766)await-promise: What's considered a "Promise" is now configurable. (#2661)indent (#2723)typedef-whitespace (#2718)variable-name (#2672)typedef: Use name or parameters for error location (#2460)object-literal-sort-keys: check shorthand properties (#2592)space-before-function-paren: Handle get/set accessor (#2700)typedef-whitespace added checks for arrow function, call and construct signature (#2718)no-object-literal-type-assertion: Allow cast to any (#2671)-p option handles directories (#2756)tsconfig.json is found next to tslint.json (#2769)return-undefined: Treat a return type void | undefined same as void (#2731)no-unnecessary-initializer: Handle BindingElement anywhere, not just in a VariableDeclaration. (#2707)jsdoc-format: correctly handle alignment in files with BOM (#2619)jsdoc-format: don't treat empty comments (/**/) as jsdoc (#2619)typedef-whitespace don't warn for leading whitespace if token is preceded by line break (#2718)jsdoc-format: fixed error position if line ends with \r\n (#2619)prefer-switch: add missing checks for some expressions (#2686)prefer-template: Allow "a" + "b" + "c". (#2741)prefer-const: fix false positive with variable declared outside of for-of or for-in (#2760)--project: fix file matching with relative path to tsconfig.json (#2688)no-default-export: correctly handle export default abstract class {...} (#2630)no-mergeable-namespace: display correct line in error message (#2656)object-literal-sort-keys: handle object spread correctly (#2592)await-promise: Consider types derived from a Promise in union types too. (#2661)no-unsafe-any: Fix bug where number literal in type position was flagged as an unsafe any. (#2712)Lint.Utils.objectify (#2764)Thanks to our contributors!
no-console bans all console methods when no methods are specified (#2610)no-object-literal-type-assertion (#2580)no-irregular-whitespace (#2487)prefer-switch (#2331)number-literal-format (#2526)deprecation (#2395)no-unnecessary-type-assertion (#2519)interface-over-type-literal (#2617)callable-types (#2552)no-string-literal (#2495)no-internal-module (#2517)align rule added members option, which checks alignment of methods and properties of classes, objects, interfaces, type literals and object destructuring (#2387)align rule added elements option, which checks alignment of elements in array literals, array destructuring and tuple types (#2387)trailing-comma adds more granular options to specify trailing commas for arrays, objects, functions, type literals, imports, and exports (#2538)ScopeAwareRuleWalker and BlockScopeAwareRuleWalker. (#2561)no-unused-expression: allow void(0) in addition to void 0 and void in expression and statement position (#2645)align: fix false positive for files with BOM (#2642)return-undefined: Handle contextual types with ambiguous signatures; allow any; and handle async functions. (#2576)semicolon: don't mark semicolon as unnecessary when the next statement is on the same line (#2591)no-internal-module: no more false positives for global augmentation (#2517)no-unnecessary-qualifier: no longer breaks when walking a function that references arguments (#2555)prefer-const no longer shows warnings on ambient declarations (#2391)callable-types: suggest correct fix for interfaces with type arguments (#2552)quotemark: fix regression with jsx attributes (#2605)adjacent-overload-signatures handles functions ending in semicolon (#2412)object-literal-key-quotes: correctly stringify numbers when fixing (#2515)object-literal-key-quotes: does no longer require quotes for property names containing digits (#2515)align: Don't report 'statements are not aligned' for empty statements (#2653)class-name now also checks class expressions (#2553)optionExamples: Allow to use an options array directly instead of a string representation. (#2527)rulesDirectory can now be resolved with Nodes resolve logic, if the directory contains an index.js (#2163) (#2358)no-unused-expression: narrow error location for comma separated expressions and conditional expressions (#2645)no-string-literal now handles escaped strings (#2495)no-unnecessary-callback-wrapper: Allow x => x(x) (#2524)no-var-keyword: Allow global var declarations (#2513)Thanks to our contributors!
no-invalid-template-strings (#2332)no-sparse-arrays (#2407)no-void-expression: adds ignore-arrow-function-shorthand (#2445)tslint:all configuration (#2417)no-reference-import from jsRules to rules (#2441)no-unnecessary-callback-wrapper: only check if callback is identifier, allow all other expressions (#2510)member-access: Skip index signature, it can not have an access modifier (#2437)restrict-plus-operands fixes regression where every assignment and comparison was checked (#2454)no-unnecessary-callback-wrapper: allow async wrapper function (#2510)prefer-for-of: No error if delete is used (#2458)radix: don't warn for missing radix on method calls (#2352)no-use-before-declare: Handle symbol with empty declarations list. (#2436)strict-type-predicates: Check for construct signatures in isFunction. (#2479)strict-boolean-expressions: When --strictNullChecks is turned off, allow-null-union and allow-undefined-union turn off "always truthy" errors. (#2373)radix: added check for global.parseInt and window.parseInt (#2352)arrow-return-shorthand: Improve failure message when return expression is an object literal (#2466)Thanks to our contributors!
msbuild was outputting all failures as "warning".pmd was outputting all failures as priority 1. Now, it uses priority 3 for "error" (default) and priority 4 for "warning"json changed the fix property to now contain either one replacement or an array of replacements (#2403)tslint:recommended configuration updated with tslint:latest rules & options (#2424)no-unused-new rule, with logic moved into no-unused-expression (#2269)no-trailing-whitespace now checks template strings by default. Use the new options ignore-template-strings to restore the old behavior. (#2359)skip from RuleWalker (#2313)Removed all use of the TypeScript Language Service, use only Program APIs instead (#2235)
no-unused-variableno-use-before-declarets.LanguageService APIs, the migration is quite simple:```diff
createFix. Replacements should be passed directly into addFailure. (#2403)scanAllTokens and skippableTokenAwareRuleWalker (#2370)[feature] The severity level of rules are now individually configurable. Default severity can also be configured. (#629, #345)
severity: default | error | warn | warning | none | offdefaultSeverity: error | warn | warning | none | off```json { "extends": "tslint:latest", "rules": { "callable-types": true, "max-line-length": [true, 140] } } ```
callable-types outputs errors and max-line-length outputs warnings):```json { "extends": "tslint:latest", "defaultSeverity": "error", "rules": { "callable-types": true, "max-line-length": { "options": 140, "severity": "warning" } } } ```
prefer-template (#2243)return-undefined (#2251)no-reference-import (#2273)no-unnecessary-callback-wrapper (#2249)linebreak-style (#2394)eofline (#2393)OptionallyTypedRule, which allows rule authors to write a rule that applies when typing is either enabled or disabled (#2300)prefer-function-over-method now ignores abstract methods (#2307)arrow-parens with option ban-single-arg-parens now correctly handles functions with return type annotation (#2265)prefer-function-over-method exclude overload signatures (#2315)use-isnan now applies only to comparison operators (#2317)file-header-rule now handles single-line comments correctly (#2320)newline-before-return: fix handling of blank lines between comments (#2321)trailing-comma No longer enforce trailing commas in type parameters and tuple types (#2236)align don't fix if it would remove code (#2379)unified-signatures now recognizes rest parameters (#2342)no-inferrable-types don't warn for inferrable type on readonly property (#2312)trailing-comma no longer crashes on new without parentheses (e.g. new Foo) (#2389)semicolon Ignore comments when checking for unnecessary semicolon (#2240)semicolon Don't report unnecessary semicolon when followed by regex literal (#2240)--force is specified (#2322)--test now correctly strips single quotes from patterns on windows (#2322)prefer-const only fix initialized variables (#2219)prefer-const correctly handle variables shadowed by parameters and catched exceptions (#2219)prefer-const don't warn if one variable in a for loop initializer can not be const (#2219)prefer-const handle more cases in destructuring (#2219)no-unused-expression allow comma separated assignments (#2269)ignore-properties option of no-inferrable-types now also ignores parameter properties (#2312)unified-signatures now displays line number of the overload to unify if there are more than 2 overloads (#2270)trailing-comma New checks for CallSignature and NamedExports (#2236)semicolon New check for export statements, function overloads and shorthand module declaration (#2240)semicolon Report unnecessary semicolons in classes and in statement position (for option "always" too) (#2240)semicolon check for semicolon after method overload (#2240)array-type now consider object, undefined and never as simple types, allowing object, undefined[] and never[] (#1843)(#2353)align check statement alignment for all blocks (#2379)aligncheck parameter alignment for all signatures (#2379)--test can handle multiple paths at once (#2322)only-arrow-functions allow functions that use this in the body (#2229)--type-check is used without --project (#2322)-p as shorthand for --project to be consistent with tsc (#2322)prefer-const show warnings for var (#2219)quotemark fixer unescapes original quotemark (e.g. ‘’\''->"'") (#2359) [enhancement]no-unused-expressionallow indirect eval(0, eval)("");(#2269) [enhancement]no-unused-expressionchecking for unused new can now use optionallow-fast-null-checks(#2269) [enhancement]no-unused-expressionfind unused comma separated expressions in all locations of the code (#2269) [enhancement]no-unused-expressionfind unused expressions inside void expression (#2269) [new-config-option] AddsdefaultSeveritywith optionserror,warning, andoff`. (#2416)no-unused-expression adds option allow-tagged-template to allow tagged templates for side effects (#2269)no-unused-expression adds option allow-new to allow new without using the new object (#2269)member-access adds no-public option (#2247)curly added option ignore-same-line (#2334){destructuring: "all"} to only warn if all variables in a destructuring can be const (#2219)ignore-template-strings to no-trailing-whitespace (#2359)array-type now consider undefined and never as simple types, allowing undefined[] and never[] (#1843)Thanks to our contributors!
ban-types and no-duplicate-super (#2271)object-literal-key-quotes handle negative number property name (#2273)no-import-side-effect (#2155)match-default-export-name (#2117)no-non-null-assertion (#2221)ban-types (#2175)no-duplicate-super (#2038)newline-before-return (#2173)completed-docs adds options for location, type, and privacy. Also adds interfaces, enums, types (#2095)no-inferrable-types adds option ignore-properties (#2178)typedef adds options object-destructuring and array-destructuring options (#2146)member-ordering adds option alphabetize (#2101)no-trailing-whitespace adds option ignore-jsdoc (#2177)no-trailing-whitespace adds option ignore-comments option (#2153)no-inferrable-types automatically remove inferrable type annotations (#2178)no-any (#2165)noConsecutiveBlankLines (#2201)object-literal-shorthand (#2165)no-switch-case-fallthrough handle break, throw, continue and return nested in block, if-else and switch (#2218)no-switch-case-fallthrough allow empty case clauses before default clause (#2218)no-mergeable-namespace ignore property types that can't be merged (#2105)object-literal-key-quotes no need to quote a float if its .toString() is the same. (#2144)no-consecutive-blank-lines Correctly apply fixes at EOF (#2239)quotemark now handles escaped chars (#2224)no-switch-case-fallthrough allow single line comment // falls through (#2218)no-unbound-method allows property access and binary expressions (#2143)AbstractWalker for performance (#2093)Thanks to our contributors!
whitespace rule caused false positive on EOF (#2131)json formatter parameter has extra space (#2132)no-misused-new)arrow-return-shorthand (#1972)no-unbound-method (#2089)no-boolean-literal-compare (#2013)no-unsafe-any (#2047)no-unnecessary-qualifier (#2008)no-unnecessary-initializer (#2106)await-promise (#2102)no-floating-promises (#1632)strict-type-predicates (#2046)no-misused-new (#1963)prefer-method-signature (#2028)prefer-function-over-method (#2037)allow-fast-null-checks added to no-unused-expression (#1638)comment-format-rule adds ignore-words and ignore-pattern options (#1757)whitespace adds check-preblock option (#2002)strict-boolean-expressions adds allow-null-union, allow-undefined-union, allow-string, and allow-number and (#2033)align (#2097)no-trailing-whitespace (#2060)no-magic-numbers false positive on default parameter values (#2004)no-empty-interface allow empty interface with 2 or more parents (#2070)no-trailing-whitespace fixed for comments and EOF (#2060)no-empty no longer fails for private or protected constructor (#1976)tslint:disable/tslint-enable now handles multiple rules and fixes what code is enabled/disabled (#2061)no-inferrable-types now validates property declarations (#2081)unified-signatures false positive (#2016)whitespace finds all whitespace errors in JsxExpressions and TemplateExpressions (#2036)comment-format no more false positives in JsxText (#2036)--test option now accepts glob (#2079)Thanks to our contributors!
tslint:latest configuration (#1981)space-before-function-paren (#1897)typeof-compare (#1927)import-spacing (#1935)unified-signatures (#1944)object-literal-key-quotes (#1953)no-angle-bracket-type-assertion (#1979)adjacent-overload-signature now handles static/computed function names (#1831)file-header now handles files with only comments (#1913)no-consecutive-blank-lines now allows blank lines in template strings (#1886)object-literal-key-quotes no longer throws exception when using rest operator (#1916)restrict-plus-operands no longer shows false positive in ternary operation (#1925)prefer-for-of now handles nested for loops with reused iterator (#1926)tsconfig.json passed as --project argument doens't have files (#1933)object-literal-key-quotes now handles shorthand and spread properties (#1945)arrow-parens Allow binding patterns ([x, y]) => ... and ({x, y}) => ... to have parens (#1958)semicolon fixer now handles comma separator in interfaces and indicates failure when commas are using in interfaces (#1856)only-arrow-functions option allow-named-functions now allows function declarations (#1961)prefer-for-of no longer shows false positive when array is in parentheses (#1986)prefer-const now works for TypeScript versions < 2.1.0 (#1989)member-access narrow location of error (#1964)Thanks to our contributors!
no-string-throw (#1878)no-empty-interface (#1889)interface-over-type-literal (#1890)callable-types (#1891)no-void-expression (#1903)ban-single-arg-parens added to arrow-parens (#1893)prefer-const handles destructuring arrays (#1894), destructuring objects (#1906), and forward references (#1908)one-line rule (#1866)no-shadowed-variable now identifies shadowed for iterator (#1816)object-literal-key-quotes now includes function names (#1874)disable-next-line comment (#1902)Thanks to our contributors!
typedef rule was showing false positive for catch clause (#1887)prefer-const (#1801)strict-boolean-expressions (#1820)no-magic-numbers (#1799)import-blacklist (#1841)promise-functions-async (#1779)no-inferred-empty-object-type: a type must be specified when using a generic class/function/etc (#1821)allow-named-functions added to only-arrow-functions (#1857)prefer-const (#1801)quotemark (#1790)code-frame formatter shows you the error in context (#1819)no-internal-module failures highlight less text (#1781)only-arrow-functions will allow functions with a this parameter (#1597)no-use-before-declare false positive on named import (#1620)prefer-for-of was showing false positive when the element is assigned (#1813)type-check was swallowing the next argument (#1783)tslint:disable-line was re-enabling tslint:disable (#1634)adjacent-overload-signatures did not work for constructors (#1800)checkstyle formatter was reporting errors under one file (#1811)trailing-comma was applied to parameter lists (#1775)Thanks to our contributors!
prefer-for-of (#1758)adjacent-overload-signatures false positive when a static function has the same name (#1772)Thanks to our contributors!
no-unused-variable rule from recommended config, as it was causing spurious deprecation warnings.no-unreachable rule; covered by compiler (#661)extends array to make it more intuitive. (#1503)completed-docs rule added (#1644)ordered-imports auto fixed (#1640)arrow-parens auto fixed (#1731)indent rule now ignores template strings (#1611)object-literal-key-quotes adds the options consistent and consistent-as-needed (#1733)--fix option added to automatically fix selected rules (#1697)adjacent-overload-signatures now works with classes, source files, modules, and namespaces (#1707).jsx files if jsRules are configured (#1714)Thanks to our contributors!
semicolon rule now disallows semicolons in multi-line bound class methods (to get the v3 behavior, use the ignore-bound-class-methods option) (#1643)use-strict rule (#678)label-undefined rule; covered by compiler (#1614)no-constructor-vars to no-parameter-properties (#1296)orderedImports rule now sorts relative modules below non-relative modules (#1640)no-unused-variable rule. This is checked by the TypeScript v2 compiler using the flags --noUnusedParameters and --noUnusedLocals. (#1481)no-var-keyword replaces var with let (#1547)trailing-comma auto fixed (#1546)no-unused-variable auto fixed for imports (#1568)semicolon auto fixed (#1423)max-classes-per-file rule added (#1666)no-consecutive-blank-lines rule now accepts a number value indicating max blank lines (#1650)ordered-imports rule option import-sources-order accepts value any (#1602)no-empty rule fixed when parameter has readonly modifierno-namespace rule: do not flag nested or .d.ts namespaces (#1571)Thanks to our contributors!
no-duplicate-key rule; covered by compiler (#1109)trailing-comma supports function declarations, expressions, and types (#1486)object-literal-sort-keys now sorts quoted keys (#1529)semicolon now processes type aliases (#1475)no-var-keyword now rejects export var statements (#1256)semicolon now requires semicolon for function declaration with no body (#1447)fileslist formatter writes a list of files with errors without position or error type specifics (#1558)cyclomaticComplexity, enforces a threshold of cyclomatic complexity.] (#1464)prefer-for-of, which errors when for(var x of y) can be used instead of for(var i = 0; i < y.length; i++) (#1335)array-type, which can require using either ‘T[]’ or 'Array<T>' for arrays (#1498)object-literal-sort-keys checks multiline objects only (#1642)ban rule now can ban global functions (#327)jsdoc rule should not match arbitrary comments (#1543)one-line rule errors when declaring wildcard ambient modules (#1425)Thanks to our contributors!
tslint:latest configuration (#1506)adjacent-overload-signatures rule (#1426)file-header rule (#1441)object-literal-shorthand rule (#1488)allow-declarations option for only-arrow-functions rule (#1452)import-sources-order option for ordered-imports rule (#1466)arrow-parens rule handles async and generics (#1446, #1479)comment-format rule ignores tslint control comments (#1473)no-shadowed-variable rule false positives (#1482)Thanks to our contributors!
arrow-parens rule (#777)max-file-line-count rule (#1360)no-unsafe-finally rule (#1349)no-for-in-array rule (#1380)object-literal-key-quotes rule (#1364)ban rule failure messages (#1385)Thanks to our contributors!
Thanks to our contributors!
ordered-imports rule (#1325)Thanks to our contributors!
only-arrow-functions rule (#1318)no-unused-new rule (#1316)arrow-call-signature option for typedef rule (#1284)typedef rule is more flexible about the location of typedefs for arrow functions (#1176)no-consecutive-blank-lines now handles lines with only whitespace correctly (#1249).json config files that have a BOM (#1338)Thanks to our contributors!
linebreak-style rule (#123)no-mergeable-namespace rule (#843)ignore-interfaces option for semicolon rule (#1233)no-default-export rule handles more default export cases (#1241)Thanks to our contributors!
member-ordering rule doesn't crash on methods in class expressions (#1252)ban rule handles chained methods appropriately (#1234)Thanks to our contributors!
member-ordering rule doesn't crash on methods in object literals (#1243)new-parens rule (#1177)no-default-export rule (#1182)order: ... option for member-ordering rule (#1208)one-variable-per-declaration rule (#1204)semicolon rule checks export statements (#1155)Thanks to our contributors!
no-namespace rule (#1133)one-variable-per-declaration rule (#525)no-inferrable-types rule (#1190)no-invalid-this rule (#1179)extends packages relative to location of configuration file (#1171)Linter class will throw an error if configuration is of an invalid type (#1167)use-isnan allows assaignments to NaN (#1054)no-unreachable handles allows hoisted type aliases (#564)member-ordering rule now checks constructors (#1158)--test CLI command works correctly with specifiying custom rules (#1195)Thanks to our contributors!
no-invalid-this rule (#1105)use-isnan rule (#1054)no-reference rule (#1139)variable-name rule (#1079)tslint.json files (#1129)trailing-comma behavior (#1122)semicolon rule more lenient with arrow-function class members (#1076)// comments (#1134)no-var-keyword rule (#1124)Thanks to our contributors!
findup-sync dependency (#1108)findConfigurationPath always returns an absolute path (#1093)findup-sync dependency (#1080)declare global no longer triggers no-internal-module rule (#1069)no-unused-expression rule (#1050)extends field for tslint.json files (#997)--force CLI option (#1059)Linter class handles configurations with a rulesDirectory field (#1035)no-angle-bracket-type-assertion rule (#639)triple-equals rule (#602)interface-name rule (#512)Thanks to our contributors!
--exclude CLI option (#915)no-shadowed-variable rule handling of standalone blocks (#1021)package.json files (#1020)Thanks to our contributors!
no-unused-variable rule (#314)no-string-literal rule (#906)member-ordering rule with regards to arrow function types in interfaces (#226)Thanks to our contributors!
typedef rule (#333)semicolon rule (#363)typedef-whitespace rule (#888)typedef-whitespace rule can now check spacing on right side of typdef colon (#888)member-ordering rule treats arrow functions as methods (#226)typedef-whitespace rule (#955)label-position rule now allows labels on for-of loops (#959)Thanks to our contributors!
test/rules/**/*.ts.lint for examples.trailing-comma rule (#856)one-line rule correctly checks space between catch and opening brace (#925)one-line rule correctly checks multiline variable declarations (#935)check-finally for one-line rule (#925)Thanks to our contributors!
quotemark rule (#673)no-unused-expression rule handles await statements correctly (#887)tslint.json file with new --init CLI command (#717)no-var-keyword rule detects the use of var in all types of for loops (#855)no-null-keyword rule (#722)>= 1.7.3 due to const enum incompatibility (#832)no-require-imports rule (#816)no-shadowed-variable false positives when handling destructuring in function params (#727)rulesDirectory in tslint.json now supports multiple file paths (#795)member-access rule now handles object literals and get/set accessors properly (#801)check-accessor and check-constructor3.0.0-dev.33.0.0-dev.23.0.0-dev.12.6.0-dev.22.6.0-dev.1no-unused-variable rule with react option works with self-closing JSX tags (#776)use-strict bugfix (#544)no-unused-variable rule (#698, #725)Linter is exported from "tslint" module (#760)no-use-before-declare rule doesn't crash on uncompilable code (#763)no-trailing-comma rule removed, it is replaced by the trailing-comma rule (#687)sort-object-literal-keys rule to object-literal-sort-keys (#304, #537)Lint.abstract() has been removed (#700)trailing-comma rule (#557, #687)variable-name rule (#735, #748)typedef rule now handles for-of loops correctly (#743)v1.7.0-dev.20151003no-unused-expression rule now handles yield expressions properly (#706)v1.7.0-dev.20150924AbstractRule and AbstractFormatter are now abstract classes (#631)Lint.abstract() is now deprecatedv1.6.2no-unused-variable rule (#570, #613, #663)v1.6.0-betano-internal-module false positives on nested namespaces (#600)sort-object-literal-keys rulev1.7.0-dev.20150828v1.6.0-dev.20150825v1.6.0-dev.20150821v1.6.0-dev.20150811whitespace false positive in JSX elements (#559)v1.6.0-dev.20150805.tsx syntax (#490)no-shadowed-variable rule (#500)allow-trailing-underscore option to variable-name ruleno-conditional-assignment (#507)member-access (#552)no-internal-module (#513)sample.tslint.json (#545)findup-sync and underscore.string dependencies"typescript" field to package.json (#560)no-var-keyword rule-f option removed from CLIno-require-imports disallows require() style importsno-shadowed-variable moves over shadowed variable checking from no-duplicate-variable into its own ruleno-duplicate-variable now only checks for duplicates within the same block scope; enable no-shadowed-variable to get duplicate-variable checking across block scopesno-duplicate-variable, no-shadowed-variable, and no-use-before-declare now support ES6 destructuringno-var-keyword disallows var in favor of let and constsort-object-literal-keys forces object-literal keys to be sorted alphabeticallyvariable-name, no-use-before-declare, whitespace and no-unused-variable)align rule now enforces vertical alignment on parameters, arguments, and statementsswitch-default enforces a default case in switch statementsno-duplicate-variable rule now additionally checks if function parameters have been shadowedtypedef and typedef-whitespace rules now take in hyphenated optionsunused-variables rule cannot find unused private variables defined in the constructor due to a bug in 1.3 compilerindent rule has changed to only check for tabs or spaces and not enforce indentation levelsno-any disallows all uses of any/* tslint:disable */ now disables semicolon rule as wellno-unused-expressionno-var-requires disallows require statements not part of an import statementtypedef rule also checks for member variablesno-unused-variable no longer triggers false positives for class members labeled only staticno-unused-expression no longer triggers false positives for "use strict"; expressionsuse-strict works correctly on function declarationsno-unused-expression rule which disallows unused expression statementscheck-operator option for the whitespace rule now checks whitespace around the => tokenno-use-before-declare-rule no longer triggers false positives for member variables of classes used before the class is declaredwhitespace ruleno-unreachable ruleexport import statements no longer false positives for no-unused-variable-ruletslint.json file, under docs/sample.tslint.jsongrunt-ts instead of grunt-typescriptpackage.json now contains a tslintConfig paramater to allow users to specify the location of the configuration file thereno-unreachable ruleno-unused-variable no longer checks parameters by default. Parameters are now only checked if the check-parameters option is set.no-unused-variable parameter check no longer fails on variable argument parameters (like ...args) and on cases where the parameters are broken up by newlines.no-unused-variable validates function parameters and constructor methodsno-empty and no-trailing-comma rules handle empty objectsno-unused-variableno-trailing-commano-use-before-declare--version in CLIverbose formatterno-empty allows constructors with member declaration parameters--helpmax-line-length allows CRLF endings 1.9.0