Method Map

optionalsingle.go:43–47

Map transforms the items emitted by an OptionalSingle by applying a function to each item.

(apply Func, opts ...Option)

// Map transforms the items emitted by an OptionalSingle by applying a function to each item.
func (o *OptionalSingleImpl) Map(apply Func, opts ...Option) OptionalSingle {
	return optionalSingle(o.parent, o, func() operator {
		return &mapOperatorOptionalSingle{apply: apply}
	}, false, true, opts...)
}

// Observe observes an OptionalSingle by returning its channel.
func (o *OptionalSingleImpl) Observe(opts ...Option) <-chan Item {