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TypeScript 4.9 Iteration Plan
#50457 opened Aug 25, 2022 by DanielRosenwasser
Open 13
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5,585 Open 29,398 Closed
5,585 Open 29,398 Closed
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Issues list

Inconsistent type narrowing with arrow functions Design Limitation Constraints of the existing architecture prevent this from being fixed
#51075 opened Oct 5, 2022 by Ustice
3
Cannot specify that a property is inherited when defining interface Duplicate An existing issue was already created
#51073 opened Oct 5, 2022 by vasyop
2
ts.preProcessFile finds import in template string after conditional expression with template strings Bug A bug in TypeScript
#51072 opened Oct 5, 2022 by jakebailey Backlog
2
SourceMap not picked up in VSC and WebStorm
#51071 opened Oct 5, 2022 by FrankEssenberger
Class property inference from constructor does not work with destructuring assignment in some cases Not a Defect This behavior is one of several equally-correct options
#51070 opened Oct 5, 2022 by panmenghan
2
Better error for ts2322 Experience Enhancement Noncontroversial enhancements Suggestion An idea for TypeScript
#51069 opened Oct 5, 2022 by hasezoey
5 tasks done
Backlog
1
using Record<string,number> - Compiler reporting error, execution is working as expect. Working as Intended The behavior described is the intended behavior; this is not a bug
#51068 opened Oct 5, 2022 by Raffaello
1
Union type doesn't match the description in the Handbook Working as Intended The behavior described is the intended behavior; this is not a bug
#51062 opened Oct 4, 2022 by cnshenj
4
Narrowing to never with in in non-union contexts with feature-tested properties Working as Intended The behavior described is the intended behavior; this is not a bug
#51059 opened Oct 4, 2022 by RyanCavanaugh
6
auto import with tsconfig alias paths to node_modules Domain: Auto-import Experience Enhancement Noncontroversial enhancements Help Wanted You can do this Suggestion An idea for TypeScript
#51058 opened Oct 4, 2022 by paul-vd Backlog
Completions in object type argument fails in JSDoc comment Bug A bug in TypeScript Crawler-Detected Detected by a crawler running random TSServer operations on public code. Effort: Moderate Requires experience with the TypeScript codebase, but feasible. Harder than "Effort: Casual". Help Wanted You can do this
#51054 opened Oct 4, 2022 by DanielRosenwasser Backlog
2
Extract type on JSDoc causes an assertion failure Bug A bug in TypeScript Crash For flagging bugs which are compiler or service crashes or unclean exits, rather than bad output Domain: Refactorings e.g. extract to constant or function, rename symbol Good First Issue Well scoped, documented and has the green light Help Wanted You can do this
#51053 opened Oct 4, 2022 by DanielRosenwasser Backlog
1
[ServerErrors][TypeScript] 4.9.0-dev.20221003
#51052 opened Oct 4, 2022 by typescript-bot
9
[ServerErrors][JavaScript] 4.9.0-dev.20221003
#51051 opened Oct 4, 2022 by typescript-bot
5
Combination of intersections/partials causes invalid nested object type to not report error Needs Investigation This issue needs a team member to investigate its status.
#51043 opened Oct 3, 2022 by dlane-stripe
@ahejlsberg
4
Bloomberg feedback for 4.9 Beta Discussion Issues which may not have code impact
#51042 opened Oct 3, 2022 by dragomirtitian
4
Intersection of type parameter and undefined is not never in 4.9 Bug A bug in TypeScript Fix Available A PR has been opened for this issue Needs Investigation This issue needs a team member to investigate its status.
#51041 opened Oct 3, 2022 by dragomirtitian TypeScript 4.9.2
1
@ahejlsberg
1
Interface contract breaks with existence of optional properties, and compiler is unable to spot it and type check passes Working as Intended The behavior described is the intended behavior; this is not a bug
#51039 opened Oct 3, 2022 by subodhsgod
5
Array.shift() should return defined for consistency with random access Awaiting More Feedback This means we'd like to hear from more people who would be helped by this feature Suggestion An idea for TypeScript
#51035 opened Oct 3, 2022 by cuuupid
5 tasks done
3
[NewErrors] 4.9.0-dev.20221002 vs 4.8.4
#51030 opened Oct 2, 2022 by typescript-bot
@RyanCavanaugh
26
jsxAttributeCompletionStyle doesn't work as expected
#51077 opened Oct 2, 2022 by svipas
1
Promise.finally should accept a function that returns Promise<void>
#51029 opened Oct 2, 2022 by bogdanb
2
Intl.ListFormat.prototype.resolvedOptions() is missing Bug A bug in TypeScript Domain: lib.d.ts The issue relates to the different libraries shipped with TypeScript Help Wanted You can do this
#51023 opened Oct 1, 2022 by swandir Backlog
1
[feat] MUST NOT exist property Duplicate An existing issue was already created
#51022 opened Oct 1, 2022 by loynoir
5 tasks done
7
Type of thisArg is not captured properly Duplicate An existing issue was already created
#51020 opened Oct 1, 2022 by RasmusAndreassen
1
1
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