ãã®è¨äºã«ã¤ã㦠ãã®è¨äºã¯ãJavaScriptã®æ¦å¿µãã¡ (åç·¨)ãã®ç¶ãã§ããæ¬æ¥ã¯1ã¤ã®è¨äºãªã®ã§ããããã¾ãã«ãé·ããªããããã®ã§åå²ãã¾ããã 17. Prototype Chain JavaScriptã«ã¯2ã¤ã®ç¹å¾´ãããã¾ãã1ã¤ã¯ãå ¨ã¦ããªãã¸ã§ã¯ããã§ãã1ã¤ã¯ãprototypeãã¼ã¹ã®è¨èªã ã¨ãããã¨ãã§ãã const hoge = { a: "hogehoge" }; console.log(hoge instanceof Object); // -> true const fuga = [1, 2, 3]; console.log(fuga instanceof Object); // -> true const piyo = new Map([[1, 'one'], [2, 'two']]); console.log(piyo instanceof Obje
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