isDataProp()function

isDataProp(data: T, key: unknown): key is DataKey<T>

Param	Type
`data`	`T`	The data object to check against. required
`key`	`unknown`	The value to check as a key. required

Return
`key is DataKey<T>`	`true` if `key` is an own string key of `data`, narrowing it to `DataKey<T>`.

Is an unknown value the key for an own prop of a data object?

Examples

isDataProp({ a: 1 }, "a") // true