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Conditional types can cause TS to miss incorrect interface extensions

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Status: Open.

#25344 In microsoft/TypeScript;

· errendir opened on Jun 30, 2018

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Backlog

Problem with inference for this['prop'] with conditional types

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Status: Open.

#27014 In microsoft/TypeScript;

· dfreeman opened on Sep 10, 2018

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Backlog

Using generic argument that extends something, stops inferring super keys when Exclude is used in addition to keyof and Pick

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Needs ProposalThis issue needs a plan that clarifies the finer details of how it could be implemented.This issue needs a plan that clarifies the finer details of how it could be implemented.

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Open.

#27928 In microsoft/TypeScript;

· sceutre opened on Oct 16, 2018

Generic type union assignment via Pick throws TS2322

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Status: Open.

#28080 In microsoft/TypeScript;

· Niels-Be opened on Oct 23, 2018

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Backlog

Typescript failed to expand type in generic for unknown reason

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Status: Open.

#28545 In microsoft/TypeScript;

· mmis1000 opened on Nov 15, 2018

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Backlog

Generic derived value type

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Experience EnhancementNoncontroversial enhancementsNoncontroversial enhancements

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Open.

#28597 In microsoft/TypeScript;

· jurajkocan opened on Nov 19, 2018

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Backlog

Pick<T, Exclude<keyof T, K>> & Pick<T, Extract<keyof T, K>> should be assignable to T

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Experience EnhancementNoncontroversial enhancementsNoncontroversial enhancements

SuggestionAn idea for TypeScriptAn idea for TypeScript

Status: Open.

#28884 In microsoft/TypeScript;

· djrodgerspryor opened on Dec 6, 2018

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Backlog

Conditional type does not narrow union type

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Status: Open.

#29188 In microsoft/TypeScript;

· lodo1995 opened on Dec 28, 2018

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Backlog

Exponential compilation slowdown with property accessors and conditional types

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Domain: PerformanceReports of unusually slow behaviorReports of unusually slow behavior

Status: Open.

#29350 In microsoft/TypeScript;

· alexfoxgill opened on Jan 10, 2019

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Backlog

typeof 'function' using with Exclude<T, Function>

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Domain: Control FlowThe issue relates to control flow analysisThe issue relates to control flow analysis

Status: Open.

#29614 In microsoft/TypeScript;

· Saul-Mirone opened on Jan 28, 2019

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Backlog

3.4.1 regression in distributed types

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Needs InvestigationThis issue needs a team member to investigate its status.This issue needs a team member to investigate its status.

Status: Open.

#31121 In microsoft/TypeScript;

· aleclarson opened on Apr 25, 2019

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Backlog

any appears to shortcircut structural type checking

BugA bug in TypeScriptA bug in TypeScript

Domain: Conditional TypesThe issue relates to conditional typesThe issue relates to conditional types

Domain: Variance RelationshipsThe issue relates to variance relationships between typesThe issue relates to variance relationships between types

Status: Open.

#31295 In microsoft/TypeScript;

· webstrand opened on May 7, 2019

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Backlog