made with esnextbin
Created
September 16, 2016 00:27
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esnextbin sketch
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>ESNextbin Sketch</title> | |
| <!-- put additional styles and scripts here --> | |
| </head> | |
| <body> | |
| <!-- put markup and other contents here --> | |
| <div id="app"></div> | |
| </body> | |
| </html> |
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| import { Observable } from 'rxjs'; | |
| const someObservableThatMightBeSyncOrAsync = Observable.create((subscriber) => { | |
| let id, isSync = false && Math.random() < 0.5; | |
| if (isSync) { | |
| subscriber.next(`oops I'm synchronous`); | |
| } else { | |
| id = setTimeout(() => { | |
| subscriber.next(`nice I'm async`); | |
| }, 100); | |
| } | |
| return () => { | |
| if (id) { | |
| clearTimeout(id); | |
| id = null; | |
| } | |
| } | |
| }); | |
| try { | |
| someObservableThatMightBeSyncOrAsync.subscribe( | |
| (x) => { | |
| throw "something really bad happened"; | |
| }, | |
| (e) => { | |
| console.log(`handled the error '${e}' nice`); | |
| } | |
| ); | |
| } catch(e) { | |
| console.error(`sync emission so catch won't work :(`); | |
| } |
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| { | |
| "name": "esnextbin-sketch", | |
| "version": "0.0.0", | |
| "dependencies": { | |
| "rxjs": "5.0.0-beta.11" | |
| } | |
| } |
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| "use strict"; | |
| var _rxjs = require("rxjs"); | |
| var someObservableThatMightBeSyncOrAsync = _rxjs.Observable.create(function (subscriber) { | |
| var id = void 0, | |
| isSync = false && Math.random() < 0.5; | |
| if (isSync) { | |
| subscriber.next("oops I'm synchronous"); | |
| } else { | |
| id = setTimeout(function () { | |
| subscriber.next("nice I'm async"); | |
| }, 100); | |
| } | |
| return function () { | |
| if (id) { | |
| clearTimeout(id); | |
| id = null; | |
| } | |
| }; | |
| }); | |
| try { | |
| someObservableThatMightBeSyncOrAsync.subscribe(function (x) { | |
| throw "something really bad happened"; | |
| }, function (e) { | |
| console.log("handled the error '" + e + "' nice"); | |
| }); | |
| } catch (e) { | |
| console.error("sync emission so catch won't work :("); | |
| } |
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