Pull requests: microsoft/TypeScript
Pull requests list
Properly account for start length when inferring into two variadic tuple elements when implied arity is available
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#62563
opened Oct 8, 2025 by
Andarist
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Improve contextual types inferred from return types
Author: Team
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#61913
opened Jun 22, 2025 by
ahejlsberg
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Compare optional property flag when comparing against discriminant properties under PR for untriaged, rejected, closed or missing bug
exactOptionalPropertyTypes
For Uncommitted Bug
#61682
opened May 9, 2025 by
Andarist
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Don't obtain apparent type of contextual types being optional type variables
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#61635
opened Apr 30, 2025 by
Andarist
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Defer index types on homomorphic mapped types that change readonlyness
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#60858
opened Dec 26, 2024 by
Andarist
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Fixed an issue with optionality not being stripped from generic mapped types on indexed access
For Milestone Bug
PRs that fix a bug with a specific milestone
#59921
opened Sep 10, 2024 by
Andarist
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Support const assertions and unit type const variable references in constant expressions
Author: Team
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#59475
opened Jul 30, 2024 by
ahejlsberg
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Fix generic nullable checks
Author: Team
For Milestone Bug
PRs that fix a bug with a specific milestone
#59437
opened Jul 26, 2024 by
ahejlsberg
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Fix inconsistent generic indexed access
Author: Team
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#59415
opened Jul 24, 2024 by
ahejlsberg
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Enable PR for untriaged, rejected, closed or missing bug
--enforceReadonly in TypeScript code base
Author: Team
For Uncommitted Bug
#59326
opened Jul 17, 2024 by
ahejlsberg
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Analyze control flow effects of lambdas passed as arguments
Author: Team
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#58729
opened May 31, 2024 by
ahejlsberg
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New PR for untriaged, rejected, closed or missing bug
--enforceReadonly compiler option to enforce read-only semantics in type relations
Author: Team
For Uncommitted Bug
#58296
opened Apr 23, 2024 by
ahejlsberg
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Don't exempt late bound symbols from EPC in presence of string index signature
For Milestone Bug
PRs that fix a bug with a specific milestone
#58190
opened Apr 14, 2024 by
Andarist
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Replace only local type parameters with PRs that fix a backlog bug
any when creating prototype property type of a class
For Backlog Bug
#57323
opened Feb 7, 2024 by
Andarist
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Permit circular references in type arguments for object type aliases
Author: Team
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#57293
opened Feb 4, 2024 by
ahejlsberg
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Unwrap substitution types early in PRs that fix a backlog bug
getPropertyTypeForIndexType
For Backlog Bug
#57113
opened Jan 21, 2024 by
Andarist
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Extend PRs that fix a backlog bug
isEmptyAnonymousObjectType with support for non-generic mapped types
For Backlog Bug
#56974
opened Jan 7, 2024 by
Andarist
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Defer PR for untriaged, rejected, closed or missing bug
keyof (T & U) when constituents are generic
Author: Team
For Uncommitted Bug
#56652
opened Dec 3, 2023 by
ahejlsberg
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Infer from annotated parameters of context sensitive functions in the first inference pass
For Backlog Bug
PRs that fix a backlog bug
#56460
opened Nov 19, 2023 by
Andarist
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fix(55841) - Indexing with PRs that fix a backlog bug
never should produce never
For Backlog Bug
#55842
opened Sep 23, 2023 by
jfet97
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Fixed some variance measurements in type aliases of generic functions
For Uncommitted Bug
PR for untriaged, rejected, closed or missing bug
#54866
opened Jul 3, 2023 by
Andarist
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Remove inference mode check in PRs that fix a backlog bug
getNarrowableTypeForrReference
For Backlog Bug
#54698
opened Jun 18, 2023 by
nlipiarski
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Check the provided type argument with this argument against the similarly obtained instantiated constraint
For Backlog Bug
PRs that fix a backlog bug
#54290
opened May 17, 2023 by
Andarist
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Add nested call and new expressions as potential intra expression inference sites
For Backlog Bug
PRs that fix a backlog bug
#54183
opened May 8, 2023 by
Andarist
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