Created
December 31, 2019 22:28
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Working SystemJS and rxjs
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="width=device-width" /> | |
| <title></title> | |
| <script src='https://cdn.jsdelivr.net/npm/systemjs@6.1.5/dist/system.js'></script> | |
| <script src='https://cdn.jsdelivr.net/npm/systemjs@6.1.5/dist/extras/amd.js'></script> | |
| <script src='https://cdn.jsdelivr.net/npm/systemjs@6.1.5/dist/extras/named-exports.js'></script> | |
| <script src='https://cdn.jsdelivr.net/npm/systemjs@6.1.5/dist/extras/named-register.js'></script> | |
| <script src='https://cdn.jsdelivr.net/npm/systemjs@6.1.5/dist/extras/use-default.js'></script> | |
| </head> | |
| <body> | |
| <script type="systemjs-importmap"> | |
| {"imports":{"rxjs":"https://cdn.jsdelivr.net/npm/@reactivex/rxjs@6.5.3/dist/global/rxjs.umd.js"}} | |
| </script> | |
| <script> | |
| // rxjs hack | |
| const originalResolve = System.resolve | |
| System.resolve = function (name) { | |
| if (name === 'rxjs/operators') { | |
| return 'rxjs-operators.js' | |
| } else { | |
| return originalResolve.apply(this, arguments) | |
| } | |
| } | |
| System.register('rxjs-operators.js', [], _export => { | |
| System.import('rxjs').then(rxjs => { | |
| _export(rxjs.operators) | |
| }) | |
| return {} | |
| }) | |
| </script> | |
| <div> | |
| <button onClick='workingStream()'>Trigger observable stream</button> | |
| </div> | |
| </body> | |
| <script> | |
| function workingStream() { | |
| Promise.all([ | |
| System.import('rxjs'), | |
| System.import('rxjs/operators') | |
| ]).then(([rxjs, operators]) => { | |
| const sub = rxjs.interval(1000).pipe( | |
| operators.tap((v) => console.log('v', v)), | |
| operators.finalize(() => { | |
| console.log('************************') | |
| console.log('finalize called') | |
| console.log('************************') | |
| }) | |
| ).subscribe() | |
| setTimeout(() => { | |
| console.log('trigger unsubscribe on failing stream') | |
| sub.unsubscribe() | |
| }, 3000) | |
| } | |
| ) | |
| } | |
| </script> | |
| </html> |
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