æ¦è¦ éåæãªå¦çãåæçã«æ¸ãã颿°ã¿ã¤ããå®è£ ãããã åºæ¬ ãasyncããã¼ã¯ã¼ãã«ç¶ãã¦é¢æ°å®ç¾©ãæ¸ãã¨ãasync颿°ã¨ãªãã async function afn1() { } afn2 = async () => { } obj = { async afn3() { } } async颿°ãå¼ã³åºãã¨ãããã¹ãè¿ãããã console.log( afn1() ) // <Promise> ãã®ãããã¹ã¯ãasync颿°ãçµäºããã¨ãã®è¿ãå¤ã§è§£æ±ºãããä¾å¤ãèµ·ããã¨æ£å´ãããã async function afn4( flag ) { if ( flag ) return 'Yes' else throw 'No' } afn4( true ).then( v => console.log( v ) ) /// "Yes" afn4( false ).catch( v


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