pub fn of_option<Item>(o: Option<Item>) -> OptionObservable<Item>
Expand description
Creates an observable that potentially emits a single value from Option
.
Emits the value if is there, and completes immediately after. When the given option has not value, completes immediately. Never emits an error.
Arguments
o
- An optional used to take a value to emits from.
Examples
use rxrust::prelude::*;
observable::of_option(Some(1234))
.subscribe(|v| {println!("{},", v)});