async/await 㯠ES7 ã®æ©è½ã§ãéåæå¦çãè¨è¿°ããä¸ã§é常ã«ä¾¿å©ãªæ©è½ã§ããï¼ä»æ§ã¯å®å®ãã¦ããªãã¨æãï¼ ã¾ã å®è£ ãã¦ããå¦çç³»ã¯ãªãã¨æãããbabel ãªã©ã® transpiler ãã¤ããã¨å©ç¨ã§ãã async/await ãã¤ããã¨éåæå¦çã以ä¸ã®ããã«æ¸ããã¨ãã§ãã function a() { return new Promise(function(resolve, reject) { setTimeout(function() { resolve('hello, ') }, 0) }) } async function b() { var value = await a() return value + 'world' } async function c() { var value = await b() console.log(value) ret
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