mapTo - 2
RxJS 5 mapTo
HTML
<script src="https://npmcdn.com/@reactivex/[email protected]/dist/global/Rx.umd.js"></script>JavaScript
//emit every click on document
const source = Rx.Observable.fromEvent(document, 'click');
//map all emissions to one value
const example = source.mapTo('GOODBYE WORLD!');
//output: (click)'GOODBYE WORLD!'...
const subscribe = example.subscribe(val => console.log(val));