904723 - Implement ES6 Array.from 22.1.2.1 Array.from ( arrayLike [ , mapfn [ , thisArg ] ] ) Array-like ãªå¤ãArrayã«å¤æããã¡ã½ããã§ãã å¼æ°ã¯ arrayLike: Array-likeãªãªãã¸ã§ã¯ã mapfn:(Optional) Array.prototype.map ã«æ¸¡ããã㪠function thisArg:(Optional) åä¸ Array-likeãªãªãã¸ã§ã¯ãã¨ã¯ä»¥ä¸ã®æ§ãªãã® @@iteratorã®ã¤ãã¬ã¼ã¿ãæã¤ãã® lengthããããã£ãæã¤ãã® lengthããããã£ãæã¤ãã®ããã@@iteratorã®æ¹ãåªå
度ãé«ãã®ã§æ³¨æ 使ç¨ä¾ æãã¤ããã®ããããã¦ã« HTMLCollection, NodeList ã«å¯¾ãã¦ãforEach, m
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