Issues

• options to conditional-keys

  type addition
  sindresorhus/type-fest#1385 · Filter by author salisbury-espinosa opened on Mar 19, 2026
  2

• We may need to allocate a separate package for custom eslint rule lint-rules/validate-jsdoc-codeblocks.js

  type addition
  sindresorhus/type-fest#1384 · Filter by author salisbury-espinosa opened on Mar 18, 2026
  3

• type-fest / ts-extras eslint plugin released.

  meta
  sindresorhus/type-fest#1382 · Filter by author Nick2bad4u opened on Mar 17, 2026
  1

• Suggestions: Extends<T, U>, Not<T>, IsExactType<T, U>

  type addition
  sindresorhus/type-fest#1371 · Filter by author ghost opened on Feb 19, 2026
  7

• Proposal: ConditionalPaths

  type addition
  sindresorhus/type-fest#1328 · Filter by author bvandrc opened on Jan 20, 2026
  1

• DeepValuesOf

  type addition
  sindresorhus/type-fest#1315 · Filter by author bvandrc opened on Dec 18, 2025

• HasNonNullish?

  type addition
  sindresorhus/type-fest#1311 · Filter by author stevenvachon opened on Dec 9, 2025
  1

• Nullish/Nilable type (like Partial, but accepts null)

  type addition
  sindresorhus/type-fest#1285 · Filter by author bvandrc opened on Oct 23, 2025
  1

• Strict EventTarget

  type addition
  sindresorhus/type-fest#1230 · Filter by author Richienb opened on Sep 14, 2025
  4

• JSON Pointer for a typescript type

  type addition
  sindresorhus/type-fest#1226 · Filter by author Clindbergh opened on Sep 10, 2025
  1

• ScreamingSnakeCasedProperties and ScreamingSnakeCasedPropertiesDeep

  type addition
  sindresorhus/type-fest#1202 · Filter by author ghost opened on Jul 11, 2025
  1

• SimplifyUnion

  type addition
  sindresorhus/type-fest#1174 · Filter by author benzaria opened on Jun 7, 2025
  4

• v6

  meta
  sindresorhus/type-fest#1136 · Filter by author sindresorhus opened on May 12, 2025

• Create OverridePropertiesDeep type

  type addition
  sindresorhus/type-fest#1110 · Filter by author piscopancer opened on Apr 22, 2025
  2

• Proposal: JsonifiableValidate

  type addition
  sindresorhus/type-fest#1083 · Filter by author christophehurpeau opened on Mar 21, 2025

• Remove Opaque

  enhancement
  sindresorhus/type-fest#1070 · Filter by author sindresorhus opened on Mar 3, 2025

• Proposal: DeepPartialDiff

  type addition
  sindresorhus/type-fest#980 · Filter by author jonathanmorley opened on Nov 13, 2024

• Key Inference for Merge and MergeDeep

  type addition
  sindresorhus/type-fest#958 · Filter by author SaintPepsi opened on Sep 25, 2024
  2

• Feature request: KeysMatching (filtered keyof)

  type addition
  sindresorhus/type-fest#942 · Filter by author vincerubinetti opened on Aug 22, 2024
  5

• Feat: Include types to remove null/undefined/optionals from a tuple

  type addition
  sindresorhus/type-fest#925 · Filter by author raythurnvoid opened on Jul 31, 2024

• PartialDeep doesn't work with arrays

  documentation
  sindresorhus/type-fest#893 · Filter by author Mnigos opened on Jun 17, 2024
  10

• PositiveIntegerString type

  type addition
  sindresorhus/type-fest#869 · Filter by author mohsen1 opened on Apr 23, 2024
  4

• DistributedOmit may not need to constraint the second type argument

  type addition
  sindresorhus/type-fest#866 · Filter by author tommytroylin opened on Apr 18, 2024
  6

• Proposal: add option with exclude/keep specified type on deep type

  help wantedtype addition
  sindresorhus/type-fest#862 · Filter by author Emiyaaaaa opened on Apr 12, 2024
  5

  

• Questions about the types located in the file /source/basic.d.ts

  documentationquestion
  sindresorhus/type-fest#825 · Filter by author doox911 opened on Mar 5, 2024