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TypeScript 4.7 Iteration Plan

#48027 opened Feb 24, 2022 by DanielRosenwasser

Open 16

TypeScript 4.8 Iteration Plan

#49074 opened May 11, 2022 by DanielRosenwasser

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Labels 140 Milestones 5

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Inconsistent type safety on Unions with nested generic Tuple/Object values.

#49082 opened May 12, 2022 by Exigerr

--exactOptionalPropertyTypes seems to be ignored for JSDoc types

#49080 opened May 12, 2022 by apendua

[Proposal] Non-null assertions at block-scope level

#49079 opened May 12, 2022 by DaviDevMod

5 tasks done

Incremental build: removing/adding new files need to restart tsc

#49078 opened May 12, 2022 by Jack-Works

RFC: @internal by default

#49077 opened May 12, 2022 by Jack-Works

5 tasks done

Union types do not understand function overloads and cause an error

#49076 opened May 12, 2022 by maludwig

Condition aliasing doesn't capture optional chain expressions

#49075 opened May 11, 2022 by jakebailey

TypeScript 4.8 Iteration Plan Planning

Iteration plans and roadmapping

#49074 opened May 11, 2022 by DanielRosenwasser

Incorrect error when using generic, class and conditional typing (#43237 still exists)

#49072 opened May 11, 2022 by pjannesen

Bloomberg feedback on TypeScript 4.7 Beta Discussion

Issues which may not have code impact

#49071 opened May 11, 2022 by dragomirtitian

TypeScript's dependency on electron limits the heap size to a point that breaks monorepos, and tsserver-bridge is no longer a workaround

#49067 opened May 11, 2022 by MarcCelani-at

Error 2367 could be wrong Duplicate

An existing issue was already created

#49066 opened May 11, 2022 by Raffaello

Missing import in generated declaration file Bug

A bug in TypeScript

Domain: Declaration Emit

The issue relates to the emission of d.ts files

Effort: Moderate

Requires experience with the TypeScript codebase, but feasible. Harder than "Effort: Casual".

Help Wanted

You can do this

#49065 opened May 11, 2022 by vilic TypeScript 4.8.0

Concrete object not assignable to a generic mapped type with partially concrete constraint

#49063 opened May 11, 2022 by Andarist

Callback return type in javascript code is not checked properly under unpredictable circumstances

#49062 opened May 11, 2022 by gerukin

Rename symbol is not working in template literal type

#49070 opened May 11, 2022 by iamyoki

Language service crashes for static member in class with unresolved base members Bug

A bug in TypeScript

Crash

For flagging bugs which are compiler or service crashes or unclean exits, rather than bad output

Domain: JSDoc

Relates to JSDoc parsing and type generation

Domain: Quick Info

e.g. hover text, tool-tips, and tooltips.

Domain: Symbol Navigation

Relates to go-to-definition, find-all-references, highlighting/occurrences.

Effort: Moderate

Requires experience with the TypeScript codebase, but feasible. Harder than "Effort: Casual".

Fix Available

A PR has been opened for this issue

Help Wanted

You can do this

#49058 opened May 11, 2022 by DanielRosenwasser TypeScript 4.8.0

resolution-mode Feedback Discussion

Issues which may not have code impact

#49055 opened May 10, 2022 by DanielRosenwasser

Experiment with a flattened the control flow graph representation Domain: Performance

Reports of unusually slow behavior

Experimentation Needed

Someone needs to try this out to see what happens

In Discussion

Not yet reached consensus

Suggestion

An idea for TypeScript

#49054 opened May 10, 2022 by DanielRosenwasser

Proposal: Comptime. Optimization hints for Preprocessors Suggestion

An idea for TypeScript

Too Complex

An issue which adding support for may be too complex for the value it adds

#49052 opened May 10, 2022 by lucsoft

5 tasks done

getDefaultLibFilePath returns with mixed OS separators on Windows (both \\ and /)

#49050 opened May 10, 2022 by agilgur5

Quick info doesn't work on a property attached to a function returned from a generic function

#49048 opened May 10, 2022 by Andarist

Narrowing of this in the returned type of a parent method Declined

The issue was declined as something which matches the TypeScript vision

Suggestion

An idea for TypeScript

#49047 opened May 10, 2022 by fwolff

5 tasks done

Compile time comparison of accessors fails to differentiate on setter/getter Duplicate

An existing issue was already created

#49046 opened May 10, 2022 by neirfeno

Comments on constructor super call not preserved in ES5 unless it has additional empty line

#49045 opened May 10, 2022 by jkieboom

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