RxJSで始めるリアクティブ・プログラミング と GitHub Emoji

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1. 3Y+4Ͱ࢝ΊΔ ϦΞΫςΟϒɾϓϩάϥϛϯά ͱ (JU)VC
   &NPKJ ৘ใཧ޻ֶ෦ ճੜ দຊ ޾େ

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    • • • • •

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     • A • A / A • A

   • A A • A A , P

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     • 
      •

   (
      • ( ()    

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     from P : from([1, 2, 3, 4])

   .subscribe(x => console.log(x)); // 1, 2, 3, 4
    subscribe S P : I P Subscription P :P O

7. fromEvent(window, ‘online’) .subscribe(x => console.log(x)); // ↑ ↓ : window.addEventListener(‘online’,

   event => { console.log(event); });

8. ( ) 2 ok function listener() { // O setTimeout(()

   => { // 2 : console.log(‘ok’); }, 2000) } // window.addEventListener(‘online’, listener); window.addEventListener(‘offline’, listener); S S

9. : 2 ok merge( fromEvent(window, ‘online’), fromEvent(window, ‘offline’)) .pipe(timeout(2000)) .subscribe(()

   => console.log(‘ok’));

10. : 2 ok merge( /* 2 Observable */ fromEvent(window, ‘online’),

    fromEvent(window, ‘offline’)) .pipe(timeout(2000)) /* 2 */ .subscribe(() => console.log(‘ok’)); O O

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     • G H E • E H •

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