type-fest
https://github.com/sindresorhus/type-fest
TypeScript
A collection of essential TypeScript types
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- Issues
- Performance regression in Get<>
- Feature request: `OptionalToExplicit` (transform optional properties to required properties that may be undefined)
- `Arrayable` is unusable
- Is there a type to merge value of a `Record` where each value is an object
- IsAny not working with "any" as generic type argument under different constraint
- Non-Empty String Type
- Feature request: `KeysMatching` (filtered `keyof`)
- MergeDeep takes type of property of source instead of using the destination type in case of undefined value
- Add `SetRequiredDeep` type
- Add `EmptyArray` and `IsEmptyArray` types
- Docs
- TypeScript not yet supported