Function seenLastToUndefined

seenLastToUndefined<TIn>(
eq?: (a: TIn, b: TIn) => boolean,
): Data.Process.Process<TIn, undefined | TIn>
If a value is same as the previous value, undefined is emitted instead.
Type Parameters
- TIn
Parameters
- Optionaleq: (a: TIn, b: TIn) => boolean
  Equality function. If not specified, === semantics are used.
Returns Data.Process.Process<TIn, undefined | TIn>