Publisher Operators

Topics

Mapping elements

• map(_:)
• tryMap(_:)
• mapError(_:)
• scan(_:_:)
• tryScan(_:_:)
• setFailureType(to:)

Filtering elements

• filter(_:)
• compactMap(_:)
• removeDuplicates()
• removeDuplicates(by:)
• tryRemoveDuplicates(by:)
• replaceEmpty(with:)
• replaceError(with:)

Reducing elements

• collect()
• ignoreOutput()
• reduce(_:_:)
• tryReduce(_:_:)

Applying mathematical operations on elements

• count()
• max()
• max(by:)
• min()
• min(by:)

Applying matching criteria to elements

• contains(_:)
• contains(where:)
• tryContains(where:)
• allSatisfy(_:)
• tryAllSatisfy(_:)

Applying sequence operations to elements

• dropFirst(_:)
• drop(while:)
• append(_:)
• append(_:)
• prepend(_:)
• prepend(_:)
• prefix(_:)
• prefix(while:)

Selecting specific elements

• first()
• first(where:)
• last()
• last(where:)
• output(at:)
• output(in:)

Handling errors

• retry(_:)