sindresorhus/

type-fest

A collection of essential TypeScript types

Owners:

$180.00

USD raised

Recent activities

kainiedziela was rewarded by sindresorhus for sindresorhus/type-fest# 18

about 6 years ago

sindresorhus submitted an output to sindresorhus/ type-fest# 18

about 6 years ago

krnik was rewarded by sindresorhus for sindresorhus/type-fest# 9

about 6 years ago

issuehunt funded $ 60.00 for sindresorhus/type-fest# 18

over 6 years ago

krnik submitted an output to sindresorhus/ type-fest# 9

over 6 years ago

Issues

Funded Unfunded Rewarded Closed

Add `Mutable` type

Rewarded#17created bysindresorhus

1 pull request

$60.00

Proposal: DeepPartial

Rewarded#18created byUYEONG

1 pull request

$60.00

Add examples for the built-in types mentioned in the readme

Rewarded#9created bysindresorhus

1 pull request

$60.00

Proposal: `UnknownArray`

Unfunded#739created byEmiyaaaaa

$0.00

`Paths` should not recurse into `Map`'s prototype properties.

Unfunded#771created byEmiyaaaaa

$0.00

"type-fest": "4.7.0", `PartialDeep` break down 4.6.0 works fine

Unfunded#742created bytianyingchun

$0.00

Proposal: get the public part of union.

Unfunded#750created byEmiyaaaaa

$0.00

Request: `Slice` or `Rest`

Unfunded#751created bymatthias-ccri

$0.00

Number key not work with ObjectValue

Unfunded#752created byEmiyaaaaa

$0.00

How can I use the classic Omit functionality applied to an array type instead of a type?

Unfunded#754created bysilversonicaxel

$0.00

PartialOnUndefinedDeep removes non-optional properties when the input type contains an index signature

Unfunded#756created byrusselldavis

$0.00

[4.8.0] fails when there are no DOM types

Unfunded#757created byAviVahl

$0.00

[4.8.0] type error on jsonify

Unfunded#758created byAviVahl

$0.00

"Stricter" intersection type?

Unfunded#760created bykytta

$0.00

v4.8.0 break SnakeCasedPropertiesDeep with enum

Unfunded#766created byKuanWenChen

$0.00

"Writable" is imported from external module "./writable.js" but never used in

Unfunded#769created bymoltar

$0.00

[Bug]: Class declaration is broken

Unfunded#696created byLodin

$0.00

DeepPick and DeepPath

Unfunded#735created byjanek26

$0.00

Suggestion: add `ArraySlice` and `StringSlice`

Unfunded#734created byMax10240

$0.00

Map field to a type

Unfunded#733created bysimPod

$0.00

How to write `if` condition to exclude `EmptyObject`

Unfunded#732created bysimPod

$0.00

Missing ArrayIndices and ArrayValues from 4.5.0

Unfunded#729created bymp3por

$0.00

`Writable` is not suppert array

Unfunded#725created byEmiyaaaaa

$0.00

Proposal: `SetFieldType`

Unfunded#718created bylucasteles

$0.00

Generate dot.notation access list for an object

Unfunded#715created byfregante

$0.00

Proposal: Implement autocompletion for `OverrideProperties`

Unfunded#711created byhenriqueinonhe

$0.00

Unable to use `Opaque<Record<a, b>, c>`

Unfunded#708created byfregante

$0.00

Extract `ReplaceDeep` function into a separate module

Unfunded#705created byahrjarrett

$0.00

OverrideProperties marks all properties optional

Unfunded#704created bycrizo23

$0.00

`ReadonlyDeep` / `WritableDeep` not modifying arrays as of TS 5.3.3

Unfunded#833created bytrevorade

$0.00

[4.10.0][Regression] failure when type checking with exactOptionalPropertyTypes

Unfunded#801created byAviVahl

$0.00

Allow `SetRequired` to specify internal properties (aka optic)

Unfunded#569created byLonli-Lokli

$0.00

TS 5.4.2 breaks `ConditionalKeys` and `SetParameterType`

Unfunded#831created bytrevorade

$0.00

`ArraySlice` should support spread array

Unfunded#828created byEmiyaaaaa

$0.00

`RepeatString` type

Unfunded#827created bysindresorhus

$0.00

`UnionToUnorderedTuple` type

Unfunded#819created bysindresorhus

$0.00

CamelCasedObjectDeep breaks tuple-types into array-types

Unfunded#817created bypmk1c

$0.00

Bug: Nextjs and type-fest camel-case.d.ts Type error: '?' expected.

Unfunded#814created bya7medpa

$0.00

Require exactly one key of type `string`

Unfunded#813created byjakeboone02

$0.00

Why do we need to specify the `engines` field in package.json?

Unfunded#812created bygavinxgu

$0.00

OptionalExcept type

Unfunded#811created bystabai

$0.00

Maintenance strategy: Considering splitting `type-fest` into smaller importable parts

Unfunded#809created byvoxpelli

$0.00

IntRange Inclusive

Unfunded#803created byBrendanC23

$0.00

ConditionalPickDeep does not work with deep interfaces

Unfunded#773created byozum

$0.00

Feature Request (or bug report?) - Get the last key of a record

Unfunded#797created bymatthew-dean

$0.00

SetRequiredDeep - is it possible?

Unfunded#796created byHatgor

$0.00

NonNullableDeep

Unfunded#795created bymfulton26

$0.00

`Get<BaseType, Path>` does not work when `Path` contains `${number}`

Unfunded#791created byttlong3103

$0.00

`PackageJson`: Why properties like `name` and `version` are not required?

Unfunded#790created byJounQin

$0.00

IfType type guards

Unfunded#788created byZachHaber

$0.00

4.9.0 fails with "Cannot find module './camel-case' or its corresponding type declarations"

Unfunded#786created bymperdikeas

$0.00

Canary: `MergeDeep` failures in `typescript@next` not detected by canary tests

Unfunded#784created byvoxpelli

$0.00

ReadonlyDeep turns `void` into `unknown`

Unfunded#781created byrusselldavis

$0.00

MergeDeep is never when compiled to .d.ts

Unfunded#780created bydreinon

$0.00

`MergeDeep` removes optionals from `any` and `never` fields

Unfunded#775created byXananax

$0.00

`Addition` And `Subtraction` Type Proposal

Unfunded#774created byDlurak

$0.00

Opaque not working correctly?

Unfunded#599created byAuspeXeu

$0.00

Is there a way to check that a key conforms to a base type without using an interface?

Unfunded#631created bymatthew-dean

$0.00

Jsonify: `readonly` messes with Jsonified tuple types

Unfunded#629created bymfulton26

$0.00

'Type instantiation is excessively deep..' error caused by update to `SetRequired<>` in v3.10.0

Unfunded#627created byandyjy

$0.00

Helper for `fn(...rest, extra)` ("A rest parameter must be last in a parameter list.")

Unfunded#625created byfregante

$0.00

The peer deps of `typescript` causes it installed in production mode

Unfunded#622created byOpportunityLiu

$0.00

NonEmptyObject

Unfunded#621created bykkmuffme

$0.00

Add `SetReadonly`

Unfunded#620created byShinigami92

$0.00

NonOptionalKeysOf

Unfunded#617created bykkmuffme

$0.00

WritableKeysOf

Unfunded#616created bykkmuffme

$0.00

Proposal: NonEmptyArray

Unfunded#613created bybvandercar-vt

$0.00

OverrideProperties doesn't throw an error if it has one correct property

Unfunded#608created byjinta4020

$0.00

`SetRequired` incorrectly combines union types

Unfunded#602created byelliotbonneville

$0.00

Optional tags are lost after merge

Unfunded#601created byasins

$0.00

`LastArrayElement<[T, ...U[]]>` should be `T | U`, but it is `U`.

Unfunded#635created byootidea

$0.00

Add typescript 4.7 as a peer dependency?

Unfunded#598created bypatrick-mcdougle

$0.00

[MergeDeep] No attempt merge on Destination + Source types

Unfunded#595created bybombillazo

$0.00

How would I do something like "require 2 props or this 1 other prop"?

Unfunded#593created bymatthew-dean

$0.00

A Constructor within a ReadonlyDeep type is not callable

Unfunded#592created bygalmalka

$0.00

Add a type for merging classes

Unfunded#588created byajvincent

$0.00

How to have unknown keys return `never` with `Get` type?

Unfunded#587created bytonyxiao

$0.00

Prettify utility

Unfunded#581created bykof

$0.00

Incorrect `Merge` with optional `any` fields

Unfunded#579created bycenter-777

$0.00

`Simplify` does not transform deep/recursively

Unfunded#577created bynoamloewenstern

$0.00

feature request: Omitdeep

Unfunded#576created bywajeehsf

$0.00

ConditionalPickDeep includes Array prototype properties & methods

Unfunded#570created byroblav96

$0.00

NonNegativeInteger doesn't work

Unfunded#568created byGregJArnold

$0.00

Support composable tagged types

Unfunded#665created byethanresnick

$0.00

Proposal: `SetRequired`, `SetNonNullable`, `Schema` based on nested key path

Unfunded#688created bybvandercar-vt

$0.00

Is it possible to conditionally get a property from a nested object?

Unfunded#687created byh2ck4u

$0.00

Type error: '?' expected.

Unfunded#683created byfgrs

$0.00

`UndefinedOnPartialDeep` (opposite of `PartialOnUndefinedDeep`)

Unfunded#681created bykachkaev

$0.00

IsLiteral should not require the type to be Primitive but check it internally

Unfunded#680created bykkmuffme

$0.00

Add `Expand` type

Unfunded#678created byolalonde

$0.00

`RequiredDeep` silently erases types past a depth of 3 as a side-effect

Unfunded#677created byahrjarrett

$0.00

SetParameterType for functions

Unfunded#675created byinnermatrix

$0.00

Missing export after adding `Tagged` type

Unfunded#674created bytommy-mitchell

$0.00

Proposal: `IndexesOf` and `ItemsOf`

Unfunded#670created bylucasteles

$0.00

Proposal: `Enumerate` and `IntRange`

Unfunded#669created bylucasteles

$0.00

SingleOrArray - Add type for a single value or an array of values

Unfunded#666created byMichael-Ziluck

$0.00

SnakeCasedPropertiesDeep incorrectly handles readonly arrays

Unfunded#692created bycravend

$0.00

Check if we need to reduce "excessively deep error" on WritableDeep too

Unfunded#664created bysindresorhus

$0.00

Broken link on paka.dev in readme.md

Unfunded#663created byzkulbeda

$0.00

Expose `NonEmptyTuple`

Unfunded#661created bytommy-mitchell

$0.00

Expose `UnknownRecord` in the public API

Unfunded#659created byMatanYadaev

$0.00

Jsonify fails on nested object with name property.

Unfunded#657created byRalphSleigh

$0.00

`MergeDeep` doesn't preserve `readonly` modifier

Unfunded#655created byshaungrady

$0.00

Is it possible to Omit native type like booleans or numbers?

Unfunded#653created bysilversonicaxel

$0.00

`RequireOneOrNone` type

Unfunded#652created bytommy-mitchell

$0.00

Fails compilation in swc's strict mode

Unfunded#644created byDecentM

$0.00

`Opaque` does not work with case changes (ie. SnakeCasedProperties, etc)

Unfunded#643created byJPTeasdale

$0.00

`Integer<1e+100>` should be `1e+100`, but it is `never`

Unfunded#637created byootidea

$0.00

`LastArrayElement<[...T[], U]>` should be `U`, but it is `T | U`

Unfunded#636created byootidea

$0.00

KebabCasedProperties transforming `:` to `-:`

Unfunded#1074created byroydukkey

$0.00

[bug] type-fest is unusable in Deno due to missing `exports` in package.json

Unfunded#1170created bynberlette

$0.00

SingleKeyObject always returns never

Unfunded#1146created bylamuertepeluda

$0.00

`StringKeyOf` name is misleading

Unfunded#1143created byByScripts

$0.00

`PickDeep` does not consider unions that don't include the path

Unfunded#1140created byTastyPi

$0.00

Compatibility with JSR

Unfunded#1122created byXananax

$0.00

Code snippets in JSDoc don't indent properly

Unfunded#1120created bysom-sm

$0.00

Distributive conditional with LessThan

Unfunded#1115created byBrendanC23

$0.00

`CamelCasedPropertiesDeep`/`SnakeCasedPropertiesDeep` breaks `unknown` values

Unfunded#1111created byguansss

$0.00

PartialDeep doesn't make properties undefined if there's a call signature

Unfunded#1107created byJoshuaKGoldberg

$0.00

Error after update in OptionalKeysOf

Unfunded#1097created byKimPeetersODTC

$0.00

Regression 4.38.0 PartialDeep x strictNullChecks=false

Unfunded#1095created byClementValot

$0.00

WritableKeysOf return type has undefined

Unfunded#1087created byzgliubo

$0.00

Should `Promisable` also include `Promise<T>`?

Unfunded#1086created bysilverwind

$0.00

`Jsonify<unknown>` should be either `unknown` or `JsonValue`

Unfunded#1195created byGerkinDev

$0.00

Pass Options generic to SnakeCasedPropertiesDeep

Unfunded#1072created byandrewborstein

$0.00

`CamelCasedPropertiesArrayDeep` has same `Value extends readonly [...infer U, infer V]` condition

Unfunded#1062created byKyLeoHC

$0.00

Export `UnknownObject` or `UnknownRecord`

Unfunded#1057created byfregante

$0.00

Extend 'Paths' with n-level deepness

Unfunded#1056created byCHE1RON

$0.00

A test dependency is used in an exported code

Unfunded#1051created byborisvu

$0.00

`OmitDeep` for array item

Unfunded#959created byLonli-Lokli

$0.00

Partial type

Unfunded#1045created byGhost-str

$0.00

Remove certain parts from `PickIndexSignature` JSDoc

Unfunded#1038created bysom-sm

$0.00

`StringSlice<S, Start, End>` returns incorrect type when S is non-literal string

Unfunded#1035created byghaaj

$0.00

`Sum<A, B>` and `Subtract<A, B>` don't work properly for union types

Unfunded#1033created byghaaj

$0.00

`IsStringLiteral<T>` returns true for string types that have an unconstrained string component

Unfunded#1032created byjarpoole

$0.00

`SetRequiredDeep` doesn't remove optional modifiers from tuples

Unfunded#1026created bysom-sm

$0.00

`5.0.0` does not work with `rolldown-plugin-dts`

Unfunded#1232created byadamhl8

$0.00

Issue with the new `IsEqual`

Unfunded#1305created byyishayhaz

$0.00

Consider `Concat<T, U>`

Unfunded#1297created byporada

$0.00

`StringSlice` is incorrect for union of string literals of different lengths

Unfunded#1289created byTomerAberbach

$0.00

Vite quite often throws errors from type-fest

Unfunded#1282created byMathiasWP

$0.00

Proposal: AllDiscriminatedUnionFields

Unfunded#1275created byycmjason

$0.00

OOMErrorHandler with SetNonNullableDeep

Unfunded#1271created byrainhead

$0.00

JsonValue but with undefined allowed as well

Unfunded#1257created bybvandercar-vt

$0.00

can't destructure FixedLengthArray correctly

Unfunded#1245created byjendrikw

$0.00

New exports in v5.0.1 are not exported from original source files

Unfunded#1240created byjakeboone02

$0.00

`Callback<Value>`

Unfunded#1239created byRichienb

$0.00

[v5] Export internal types

Unfunded#1235created byapancutt

$0.00

[IntClosedRange] Incorrect ordering of values in resolved type

Unfunded#1233created bydavejsdev

$0.00

Proposal: `IsTuple<Type>` & `IsFixedLengthTuple<Type>`

Unfunded#1022created bySnowflyt

$0.00

Upgrade to 4.41.0 causes `RangeError: Maximum call stack size exceeded`

Unfunded#1228created byLinuCC

$0.00

Add type: RemovePrefix

Unfunded#1227created byluzilong2005

$0.00

The latest v4.41.0 release is broken

Unfunded#1220created byriva-infinex

$0.00

Should `If` be exported in `index.d.ts`?

Unfunded#1219created byalasdair-mctavish

$0.00

RequiredDeep should only remove undefined if optional and without exactOptionalPropertyTypes

Unfunded#1217created byWendystraite

$0.00

when new release?

Unfunded#1215created bysalisbury-espinosa

$0.00

ExtractStrict not yet published

Unfunded#1214created bymfulton26

$0.00

is-undefined

Unfunded#1212created bysalisbury-espinosa

$0.00

How about this easy Implementation of Or and And utilities?

Unfunded#1207created bysciencefunq

$0.00

Split has a different behavior depending on the position of ${string} in tempalte literal types

Unfunded#1203created byjclaveau

$0.00

`ExtendsStrict`, `ExtractStrict` and `ExcludeStrict` are not exported

Unfunded#1201created bySec-ant

$0.00

📁 Enhance the `type-fest` file structure using a category-based layout

Unfunded#1196created bybenzaria

$0.00

`And` and `Or` is not exported at `index.d.ts`

Unfunded#877created byryoppippi

$0.00

Expose Max Recursion Depth of Paths

Unfunded#917created byfardolieri

$0.00

Exact not function correctly with Dates since last commit

Unfunded#909created bynlynzaad

$0.00

Add `IsNullable` and `IsOptional`

Unfunded#900created byjinyongp

$0.00

Web-specific version of `StructuredCloneable` type

Unfunded#899created bysindresorhus

$0.00

`Exact` does not work as expected with type involving `Date` and union

Unfunded#896created byhgossler

$0.00

Document `IntRange` `Start` param must be `>=0`

Unfunded#895created byximex

$0.00

`IfxxxLiteral` (eg `IfBooleanLiteral`) are missing (only the `IsxxxLiteral` is present

Unfunded#892created byanodynos

$0.00

`CamelCasedPropertiesDeep` doesn't handle `Tagged` type correctly

Unfunded#889created byGhost-str

$0.00

`IsStringLiteral` should be `false` for branded and tagged types

Unfunded#885created bycjquines

$0.00

`SimplifyDeep` doesn't deep simplify lists

Unfunded#884created byKubaJastrz

$0.00

`schema` should properly set type of objects in arrays

Unfunded#883created bybvandercar-vt

$0.00

Paths<T> should handle recursive types

Unfunded#879created byXriuk

$0.00

ConditionalKeys does not correctly filter out `never` type

Unfunded#878created byroryabraham

$0.00

Issues with `Paths` type

Unfunded#921created bymatthew-dean

$0.00

Zero is not exported by ...

Unfunded#873created bymoltar

$0.00

ArrayExceptLastElement type

Unfunded#872created bySuperpat

$0.00

Type-fest based prelude

Unfunded#871created bySuperpat

$0.00

Unify `Get` and `Paths` / `PickDeep` etc

Unfunded#863created byvoxpelli

$0.00

Exclude / Pick type in Paths / only add leaf nodes

Unfunded#860created byNarretz

$0.00

Proposal: Promisable

Unfunded#40created byfabiospampinato

$0.00

OverrideProperties changes undefined as optional

Unfunded#858created byCarinaChenot

$0.00

Proposal: SetKeyRequired with key required, but allow undefined value

Unfunded#856created byClindbergh

$0.00

Type for serializable objects?

Unfunded#855created bychen-ye

$0.00

Make the second argument to RequireAllOrNone optional

Unfunded#847created byroryabraham

$0.00

IfAny circular constraint in TS 5.4+

Unfunded#846created bykkmuffme

$0.00

Set up dependabot / renovate

Unfunded#840created byvoxpelli

$0.00

`Get<T, Paths>` resolves to `unknown` if `Paths` contains a template literal type

Unfunded#967created bymwaibel-go

$0.00

Regression on SetRequired

Unfunded#1020created byraphaelboukara

$0.00

CamelCase failed (default options)

Unfunded#1018created bysalisbury-espinosa

$0.00

SetFieldType bug

Unfunded#1016created bysalisbury-espinosa

$0.00

`SetOptional` remove properties of types with index signatures

Unfunded#1013created byOpportunityLiu

$0.00

Assignability b/w generic `keyof T` and `KeysOfUnion<T>`

Unfunded#1008created byjuhort

$0.00

Expose `ConditionalSimplify` and `ConditionalSimplifyDeep`

Unfunded#1005created byEmiyaaaaa

$0.00

Proposal: `UnknownMap` and `UnknownSet`

Unfunded#1001created byEmiyaaaaa

$0.00

New Type: AllUnionFields (similar to SharedUnionFields)

Unfunded#996created byRebeccaStevens

$0.00

`SharedUnionFieldsDeep` with `undefined` in Union

Unfunded#983created byocadoret

$0.00

ArraySlice: wrong type for union of tuples

Unfunded#982created byeranhirsch

$0.00

``ArrayTail`` doesn't work when mixed with optional elements

Unfunded#978created byferferga

$0.00

license files not included in published package

Unfunded#976created byjayvdb

$0.00

Run `tsc` on all test files

Unfunded#837created bysindresorhus

$0.00

OmitDeep - when omitting multiple optional fields final type goes wrong

Unfunded#966created byvilola

$0.00

Proposal: `TupleToObject<TUPLE>`

Unfunded#956created byaandrejevas

$0.00

UnionToTuple fails when tuple is not ordered

Unfunded#955created bygxxcastillo

$0.00

`Arrayable` is unusable

Unfunded#952created byfregante

$0.00

`Exact` no longer works with recursive types + unions

Unfunded#948created byabrenneke

$0.00

IsAny not working with "any" as generic type argument under different constraint

Unfunded#947created byXriuk

$0.00

Non-Empty String Type

Unfunded#946created byroryabraham

$0.00

Line-wrap all documentation?

Unfunded#944created byjoliss

$0.00

`OmitDeep` with multiple properties to omit

Unfunded#934created byhsavit1

$0.00

Suggestion to include documetation on `Awaited` Type in README

Unfunded#933created byhaejunejung

$0.00

`ArraySlice` resolves to `never` when passing `number`

Unfunded#928created byStyleShit

$0.00

4.23.0 introduced a breaking change in `Paths` type

Unfunded#922created bymwaibel-go

$0.00

Typo in `Entries` example

Unfunded#185created byPopGoesTheWza

$0.00

[1.1.0] new version requires lib to include es2020 or later

Unfunded#206created byAviVahl

$0.00

PackageJson type does not contain known properties for "publishConfig"

Unfunded#204created byryansonshine

$0.00

Add @category JSDoc tag to improve reference docs generation

Unfunded#203created byschickling

$0.00

Proposal: `AppendKeys` `PrependKeys`

Unfunded#202created bypkuczynski

$0.00

Add `typesVersion` property to `TypeScriptConfiguration` interface

Unfunded#201created byschickling

$0.00

MergeExclusive is broken when used together with Except or built-in Omit

Unfunded#200created bynatalya-kim

$0.00

Behavior of `PascalCase`

Unfunded#198created byulken

$0.00

Camelcase capital letters misunderstood by DelimiterCase type

Unfunded#197created byfinnmerlett

$0.00

v1 produces a TypeScript compiler error

Unfunded#195created bydenver-HJS

$0.00

Question: Is it possible to get compile error with "Get"?

Unfunded#194created byozum

$0.00

[snowpack] Unable to find any entrypoint for "type-fest". It could be a typo, or this package might not have a main entrypoint.

Unfunded#193created bypopuguytheparrot

$0.00

Proposal: `ScreamingSnakeCase` type

Unfunded#192created byYash-Singh1

$0.00

Use semver versioning

Unfunded#189created bydylang

$0.00

PartialDeep does not work with `Date` type

Unfunded#207created byChromeQ

$0.00

Can't install `type-fest`

Unfunded#184created bygh4n

$0.00

Need some help to understand `string extends S`

Unfunded#183created byPaGury

$0.00

argument dynamically optional

Unfunded#182created byWORMSS

$0.00

Asyncify lost the general return type

Unfunded#178created bylinonetwo

$0.00

Add IsUnion<T>

Unfunded#174created bywillium

$0.00

Fix Union type with DeepMap?

Unfunded#169created byrnnyrk

$0.00

[Proposal] Adding in my types

Unfunded#168created byClickerMonkey

$0.00

ConditionalKeys didn't work fine as expected

Unfunded#166created byiakoug

$0.00

Add Transparent to reverse Opaque

Unfunded#165created bywillium

$0.00

type-fest@0.20.1 typescript@4.1.2 SnakeCase has bug

Unfunded#160created bykahirokunn

$0.00

Proposal: `Exact` and `ExactDeep`

Unfunded#156created bystephenh

$0.00

Is the `Class` type misnamed?

Unfunded#155created bysindresorhus

$0.00

Get type works incorrectly with tuples, it treats tuples as arrays and thereby makes it possible to access indexes that are not defined on the tuple.

Unfunded#239created byjoseDaKing

$0.00

Proposal: `RequiredDeep`

Unfunded#273created byosdiab

$0.00

Make `JsonObject` work as expected with TS 4.4 `--exactOptionalPropertyTypes`

Unfunded#272created byvoxpelli

$0.00

ArrayValue<T>

Unfunded#271created byalita-moore

$0.00

Like `Promisable<X>` but for arrays: `X | X[]`

Unfunded#270created byfregante

$0.00

Except broken after 2.3.1

Unfunded#267created byxiaoyu-tamu

$0.00

`LastArrayElement<string[]>` emits `never`

Unfunded#265created byJounQin

$0.00

Meta: Add validation check to ensure all files in `source` directory use `.d.ts` extension

Unfunded#261created bysindresorhus

$0.00

Add `WritableDeep<T>` - The inverse of `ReadonlyDeep<T>`

Unfunded#260created byfutpib

$0.00

`Jsonify` recursive cast properties of Date instead of cast to string

Unfunded#256created byleosuncin

$0.00

Add `isObject`

Unfunded#253created byfregante

$0.00

Anyone know how to turn "A" | "B" => ["A", "B"]?

Unfunded#251created byalita-moore

$0.00

Proposal: `GlobalConstructor`

Unfunded#249created byremcohaszing

$0.00

Error using type-fest with TypeScript version lower than 3.8.0

Unfunded#240created byadrianbrs

$0.00

Document new built-in TS types

Unfunded#154created bysindresorhus

$0.00

Proposal: `IsUnion`

Unfunded#236created byzikaari

$0.00

CamelCase doesn't properly format ScreamingSnakeCase strings

Unfunded#233created byroikoren755

$0.00

Except is broken when used with generic property

Unfunded#232created byszmarczak

$0.00

Proposal: PartialRecord

Unfunded#231created bytwrayden

$0.00

The `noImplicitOverride` and other options are missing

Unfunded#229created bymanuth

$0.00

Add `SetNonNullable` type

Unfunded#228created bysindresorhus

$0.00

Feature Request: CamelCase to behave like lodash.camelCase and camelcase

Unfunded#224created bygCardinal

$0.00

Strict versions of Extract and Exclude

Unfunded#222created byVages

$0.00

Proposal: `Includes` type

Unfunded#216created bysindresorhus

$0.00

Proposal: AtMostOne

Unfunded#215created byanton-johansson

$0.00

Feature Request: add `Paths` type

Unfunded#213created byzhaoyao91

$0.00

Add a `ReadonlyKeys` which finds readonly keys

Unfunded#211created byvoxpelli

$0.00

Proposal for ModifyType ?

Unfunded#69created bynmccready

$0.00

Question: is there any way to get the advantages of opaque and other options at the same time?

Unfunded#113created byxenoterracide

$0.00

`Opaque` forces lookup to `any` type because it cannot be used to index `Record` type

Unfunded#108created byrisk1996

$0.00

Proposal: DeepRecord

Unfunded#103created byGentileFulvio

$0.00

Proposal: FixedLengthArray

Unfunded#102created byRichienb

$0.00

`AsyncReturnType` doesn't work with arguments

Unfunded#98created byfregante

$0.00

AsyncReturnType doesn't work

Unfunded#93created byUberMouse

$0.00

Upgrade the `tsd` dependency

Unfunded#91created bysindresorhus

$0.00

Add `WithReturnType` type?

Unfunded#88created bypluma

$0.00

Add `Stringified` type

Unfunded#87created bysindresorhus

$0.00

Proposal: ThenArg

Unfunded#38created by5c077yP

$0.00

`PackageJson` is not a valid `JsonObject`

Unfunded#79created byifiokjr

$0.00

Comparison to `ts-essentials`

Unfunded#74created bypapb

$0.00

Opaque types are interchangeable

Unfunded#70created bynatesilva

$0.00

Except not removing keys as Omit does

Unfunded#114created byxenoterracide

$0.00

Proposal: OneOrMore

Unfunded#66created byCarsonF

$0.00

JsonObject doesn't allow optionals

Unfunded#64created bySamVerschueren

$0.00

Docs: Partial Example Error from v3.5.1

Unfunded#61created byhookercookerman

$0.00

Proposal: Dictionary

Unfunded#33created bys97712

$0.00

`RequireAtLeaseOne` issues

Unfunded#59created byxiaoyu-tamu

$0.00

Proposal: ValueOf

Unfunded#58created bysindresorhus

$0.00

Proposal: PartialExcept

Unfunded#57created byfabiospampinato

$0.00

`RequireOnlyOne` type

Unfunded#54created bysindresorhus

$0.00

Proposal: Constructor

Unfunded#51created byfabiospampinato

$0.00

Proposal: Opaque

Unfunded#50created byresynth1943

$0.00

Proposal: AsyncReturnType

Unfunded#49created bydylang

$0.00

Proposal: ExcludeProps

Unfunded#20created byfabiospampinato

$0.00

Proposal: A version of Pick that distributes over union types

Unfunded#132created bynovemberborn

$0.00

Proposal: `PartialMutable` type

Unfunded#152created bylesomnus

$0.00

Bug: 0.20.0 fails to compile under yarn2 pnp

Unfunded#151created byleaumar

$0.00

Proposal: `MergeDeep` type

Unfunded#150created bysindresorhus

$0.00

Proposal: `CamelCasedProperties` type

Unfunded#149created bysindresorhus

$0.00

Proposal: Enhanced `document.querySelector` type

Unfunded#148created bysindresorhus

$0.00

Proposal: Key path type

Unfunded#147created bysindresorhus

$0.00

[Proposal] Writable and SetWritable

Unfunded#146created bychristophehurpeau

$0.00

[Proposal] SetNonNullable

Unfunded#144created byxenoterracide

$0.00

xo currently fails when installed with yarn 1.x

Unfunded#137created byvoxpelli

$0.00

Can I just install with devDependencies instead of dependencies?

Unfunded#136created bylvdang

$0.00

Proposal: `ArrayTail`

Unfunded#135created byrifler

$0.00

Template literal type ideas

Unfunded#134created bysindresorhus

$0.00

Proposal: TypeToJSObject

Unfunded#133created byevantahler

$0.00

`PromiseValue` will no longer be needed in TypeScript 4.5

Unfunded#275created byRichienb

$0.00

Simplify `PromiseValue` type when TS 4.1 can be targeted

Unfunded#131created bysindresorhus

$0.00

Proposal: `IfAny`, `IsAny`, `IsUnknown`, etc

Unfunded#129created bysindresorhus

$0.00

Proposal: `Asyncify`

Unfunded#126created bysindresorhus

$0.00

Proposal: `ReplaceReturnType`

Unfunded#125created bysindresorhus

$0.00

Can't resolve type-fest

Unfunded#124created byar53n

$0.00

A range of numbers

Unfunded#123created byDanMossa

$0.00

Separate the standard PackageJson types into it's own type

Unfunded#122created bybarak007

$0.00

ConditionalKeys<Base, Condition> fails when used on Arrays

Unfunded#119created byKilianKilmister

$0.00

Proposal: ArrayItem

Unfunded#118created byscvnathan

$0.00

Proposal: `Must`

Unfunded#117created byLucienLee

$0.00

@ReadonlyDeep generic type

Unfunded#116created bycarpben

$0.00

Entry/Entries

Unfunded#115created bydimitropoulos

$0.00

Jsonify support for optional object keys, unserializable object values

Unfunded#424created byfrontsideair

$0.00

I think I found a bug in your Jsonify type?

Unfunded#466created byEvertt

$0.00

Suggestion: Make `SetNonNullable` 2nd Generic Optional

Unfunded#461created byjoealden

$0.00

Version upgrade causes seemingly unrelated TS errors

Unfunded#459created byuriklar

$0.00

`ReadonlyDeep` not working with TypeScript 4.8

Unfunded#458created byRebeccaStevens

$0.00

Jsonify Map type returned as `{}`

Unfunded#457created byMGibson1

$0.00

Tests no longer run with xo v0.52.2

Unfunded#451created byskarab42

$0.00

Unfunded#450created bysindresorhus

$0.00

ConditionalPickDeep

Unfunded#438created bydninomiya

$0.00

Breaking change to `Simplify<>` introduced in v2.16.0

Unfunded#436created byandyjy

$0.00

Suggestion: deep version of StringKeyOf

Unfunded#432created byclemclx

$0.00

Proposal: `SetNonNullable`

Unfunded#430created byJohannCooper

$0.00

`Override<{a: number, b: number}, {a: string}>` for unions that override props from the previous object

Unfunded#429created byfregante

$0.00

Provide playground link in readme and new issues

Unfunded#428created byfregante

$0.00

`Type instantiation is excessively deep` in `ReadonlyDeep`

Unfunded#467created bymarekdedic

$0.00

Require at least one element in arrays or function arguments (`RequireAtLeastOne`)

Unfunded#420created byfregante

$0.00

`Exact` intersection type support

Unfunded#419created byJasonShin

$0.00

TypeScript 4.7 `TsConfigJson.Module` updates.

Unfunded#418created byscott-lc

$0.00

`Jsonify` problems

Unfunded#407created byfrontsideair

$0.00

`Merge` type does not handle correctly optional properties

Unfunded#402created byadridavid

$0.00

Add `PartialOnUndefined` type

Unfunded#399created bybbrk24

$0.00

Mutable: rename as Writable (or ReadWrite)

Unfunded#396created bymfulton26

$0.00

Add `EmptyObject` (the type you'd expect for `{}`)

Unfunded#395created byfregante

$0.00

Add type for union joins

Unfunded#393created byroydukkey

$0.00

CamelCase<string> is of type 'never' ?

Unfunded#392created byGMartigny

$0.00

Unfunded#387created bysindresorhus

$0.00

Proposal: NonDiscriminatedUnion

Unfunded#386created byRebeccaStevens

$0.00

Use the new `satisfies` operator?

Unfunded#512created bysindresorhus

$0.00

Eslint complains when updating type-fest

Unfunded#565created byangelod1as

$0.00

`Except` is not strict

Unfunded#556created bynurliman

$0.00

Add `Date` to DeepPartial type helper

Unfunded#552created bybombillazo

$0.00

TsConfigJson should extend Jsonifiable

Unfunded#548created byboneskull

$0.00

Exact incorrectly handles optional object with union type

Unfunded#545created bydefunctzombie

$0.00

Transpose or invert object keys to/from key-like literal values

Unfunded#543created bytexastoland

$0.00

Feature request: `IsStringLiteral`

Unfunded#541created byAyc0

$0.00

`IsEqual` identity issues

Unfunded#537created bytrevorade

$0.00

Importing `type-fest` unable to resolve module.

Unfunded#527created bybombillazo

$0.00

Conditional pick deep not compiling, internal?

Unfunded#526created byAuspeXeu

$0.00

Suggestion: type for Object.fromEntries

Unfunded#521created bytranvansang

$0.00

0.7.1 or 0.21.3: TS2344: Type 'BaseType' does not satisfy the constraint 'Record<string | number, any>'.

Unfunded#520created bymyonara

$0.00

Inconsistency between change case with non-literal strings

Unfunded#513created byPindaPixel

$0.00

`DelimiterCase` not support `ScreamingSnakeCase` input

Unfunded#385created byyounho9

$0.00

Standard npm package.json `workspaces` field is missing from PackageJson type

Unfunded#510created byelectrovir

$0.00

Constraints of SetOptional may make you write bad code

Unfunded#509created bykasperpeulen

$0.00

`Exact` does not work with `Opaque` after 2.19.0

Unfunded#508created byeugene-mohc

$0.00

`Merge` merges optional `any` incorrectly

Unfunded#506created byJuanM04

$0.00

`MapKeys` type

Unfunded#502created byJasonShin

$0.00

`CamelCase` does not properly camelize consecutive characters

Unfunded#488created bywescopeland

$0.00

Problem with `SetNonNullable` in Type Predicate Context

Unfunded#486created byjoealden

$0.00

`NonEmptyTuple` type

Unfunded#476created bysindresorhus

$0.00

`type CamelCasedPropertiesDeep` converting Record into {}

Unfunded#475created bysalomaoluiz

$0.00

I tried to make all these types globally available in my project, but I failed.

Unfunded#470created byEvertt

$0.00

Add `SimplifyDeep` type

Unfunded#469created bysindresorhus

$0.00

Jsonify does not look deeper than one `toJSON` level

Unfunded#468created byMGibson1

$0.00

Title Case

Unfunded#299created bygrumpyTofu

$0.00

Float type does not allow whole number floats

Unfunded#333created bymattdiamond

$0.00

Float type support

Unfunded#329created byfabiospampinato

$0.00

Intersect interfaces, but "union" properties

Unfunded#328created byfregante

$0.00

Cannot copy Date type via CamelCasedPropertiesDeep

Unfunded#326created byDavid245M

$0.00

option interface field

Unfunded#324created byshaoqiwang-fe

$0.00

Proposal | Add an Paths type thats returns all valid paths to JSON like values

Unfunded#323created byjoseDaKing

$0.00

Get type should be able to return never so it can be used in a conditional type

Unfunded#315created byjoseDaKing

$0.00

Proposal: Strict `Get`

Unfunded#313created byasbjornh

$0.00

`Jsonify` removes all optional properties

Unfunded#309created bybbrk24

$0.00

Deprecate `PromiseValue`

Unfunded#308created byremcohaszing

$0.00

Feature: add PartialBy<T, K>

Unfunded#306created byluukvhoudt

$0.00

Make `GetWithPath` public

Unfunded#305created bystefanprobst

$0.00

Merge type increases type instantiations count drastically

Unfunded#304created bychbdetta

$0.00

How to use `Float`/`Integer`?

Unfunded#334created bySemigradsky

$0.00

`PartialDeep` & `error TS2589: Type instantiation is excessively deep and possibly infinite`

Unfunded#295created bymerrywhether

$0.00

SnakeCasedPropertiesDeep Incorrectly Converts Record<String, _>

Unfunded#293created bypeterkrieg

$0.00

Proposal: `Indexify`

Unfunded#292created byyounho9

$0.00

RequireOnlyOne

Unfunded#290created byalita-moore

$0.00

Proposed paradigm (functional assertions)

Unfunded#289created byalita-moore

$0.00

Proposal: `InvariantOf`

Unfunded#288created byyounho9

$0.00

question: I just wonder why this module is installed without '-D' .

Unfunded#285created bybumjun-kim

$0.00

npm registry error

Unfunded#283created bylilongxi

$0.00

Integer value comparison, minimum length array, useful?

Unfunded#282created byalita-moore

$0.00

is there a way to create regex patterns to match strings?

Unfunded#280created byalita-moore

$0.00

ObservableLike's subscribe() return type should have unsubscribe()

Unfunded#278created bydarcyparker

$0.00

Proposal: `Overwrite<Obj, Props>`

Unfunded#276created byrattrayalex

$0.00

Except no longer prevents the omitted keys to be keys present on the given type

Unfunded#360created bynvdbleek

$0.00

Merge is not that useful with indexed types

Unfunded#382created byaugustobmoura

$0.00

Proposal: KeysOfUnion, `keyof` Union type

Unfunded#381created byajitzero

$0.00

add SetExclude and SetExtract

Unfunded#380created byxenoterracide

$0.00

[Feature] ReturnTypeWithGenerics

Unfunded#379created byxenoterracide

$0.00

SetRequired not allowing other optional fields

Unfunded#378created byxenoterracide

$0.00

`PackageJson` `Exports` type should include `null`

Unfunded#376created byXunnamius

$0.00

Is there any runtime function for `CamelCasedPropertiesDeep`

Unfunded#375created byhyf0

$0.00

Add `AbstractClass<T>`

Unfunded#374created bys97712

$0.00

Add `eslintConfig` to `PackageJson` type

Unfunded#371created bypting-me

$0.00

Discussion/proposal: PartialDeep<Foo, {recurseIntoArrays: false}>

Unfunded#367created bybenallfree

$0.00

DelimiterCasedPropertiesDeep with Opaque yields wrong type

Unfunded#364created byvalkum

$0.00

FR: make a dark mode compatible logo

Unfunded#361created bymesqueeb

$0.00

Proposal: SubType

Unfunded#22created byrifler

$0.00

ReadonlyDeep is inconsistent with typescript eslint's isTypeReadonly with regard to readonly sets and map

Unfunded#357created byRebeccaStevens

$0.00

Proposal: Jsonifyable

Unfunded#356created bybenallfree

$0.00

Unable to use prototype property of type constructed with Class utility

Unfunded#351created bysempasha

$0.00

feat: Sister of Except, stricter version of Required

Unfunded#350created byvicary

$0.00

Exclude `Date` and `RegExp` in all "deep" methods

Unfunded#347created bysindresorhus

$0.00

Export `IsEqual` type

Unfunded#346created bysindresorhus

$0.00

Question: ExclusiveArray

Unfunded#345created bychris-schra

$0.00

idea: Omit/PickDeep type

Unfunded#343created byosdiab

$0.00

Proposal: `StringKeyof`

Unfunded#341created byyounho9

$0.00

Proposal: `IsLiteral`

Unfunded#339created byjonahsnider

$0.00

Proposal: `LiteralToPrimitive`

Unfunded#338created byjonahsnider

$0.00

`ReadonlyDeep` does not work for objects with call signatures

Unfunded#337created bymarekdedic

$0.00

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