Created
March 6, 2017 04:47
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JS Bin // source https://jsbin.com/bovexi
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <div id="mount"> | |
| <button id="decrement">-</button> | |
| <label id="count"></label> | |
| <button id="increment">+</button> | |
| </div> | |
| <script src="https://unpkg.com/@reactivex/rxjs@5.0.3/dist/global/Rx.js"></script> | |
| <script id="jsbin-javascript"> | |
| document.addEventListener('DOMContentLoaded', () => { | |
| let increment = document.querySelector('#increment'), | |
| decrement = document.querySelector('#decrement'), | |
| count = document.querySelector('#count'); | |
| let increment$ = Rx.Observable | |
| .fromEvent(increment, 'click') | |
| .map(e => 1); | |
| let decrement$ = Rx.Observable | |
| .fromEvent(decrement, 'click') | |
| .map(e => -1); | |
| let count$ = Rx.Observable | |
| .empty() | |
| .defaultIfEmpty(0) | |
| .merge(increment$, decrement$) | |
| .scan((acc, curr) => acc + curr, 0) | |
| count$.subscribe(data => { | |
| count.textContent = data | |
| }) | |
| }) | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">document.addEventListener('DOMContentLoaded', () => { | |
| let increment = document.querySelector('#increment'), | |
| decrement = document.querySelector('#decrement'), | |
| count = document.querySelector('#count'); | |
| let increment$ = Rx.Observable | |
| .fromEvent(increment, 'click') | |
| .map(e => 1); | |
| let decrement$ = Rx.Observable | |
| .fromEvent(decrement, 'click') | |
| .map(e => -1); | |
| let count$ = Rx.Observable | |
| .empty() | |
| .defaultIfEmpty(0) | |
| .merge(increment$, decrement$) | |
| .scan((acc, curr) => acc + curr, 0) | |
| count$.subscribe(data => { | |
| count.textContent = data | |
| }) | |
| }) | |
| </script></body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| document.addEventListener('DOMContentLoaded', () => { | |
| let increment = document.querySelector('#increment'), | |
| decrement = document.querySelector('#decrement'), | |
| count = document.querySelector('#count'); | |
| let increment$ = Rx.Observable | |
| .fromEvent(increment, 'click') | |
| .map(e => 1); | |
| let decrement$ = Rx.Observable | |
| .fromEvent(decrement, 'click') | |
| .map(e => -1); | |
| let count$ = Rx.Observable | |
| .empty() | |
| .defaultIfEmpty(0) | |
| .merge(increment$, decrement$) | |
| .scan((acc, curr) => acc + curr, 0) | |
| count$.subscribe(data => { | |
| count.textContent = data | |
| }) | |
| }) |
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