findKey<S extends Record<string | number | symbol, any>, T = any>( subject: S, predicate: ( this: T, key: keyof S, index: number, obj: (
keyof S)
[], subject: S, ) => boolean, thisArg?: T,): undefined | keyof S Type Parameters
- S extends Record<string | number | symbol, any>
- T = any
Parameters
- subject: S
- predicate: (this: T, key: keyof S, index: number, obj: (keyof S)[], subject: S) => boolean
OptionalthisArg: T
Returns undefined | keyof S