Baseline Widely available
item()
㯠NamedNodeMap
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®ã¡ã½ããã§ããããå
ã®æå®ãããä½ç½®ã«ããé
ç®ãè¿ãã¾ãã
ã¡ã¢: ãã®ã¡ã½ããã¯ã []
æ¼ç®åã®æ§æã使ç¨ããå ´åã«ãå¼ã³åºããã¾ãã ãã®ãã i
ãæ°å¤ã®å ´åã myMap[i]
㯠myMap.item(i)
ã¨åãã§ãã
index
è¿ãããé ç®ã®ä½ç½®ãè¡¨ãæ°å¤ã§ãã
Attr
ã§ããæ°å¤ããããã® length
以ä¸ã®å ´å㯠null
ã§ãã
<pre zero="test" one="test" two="test"></pre>
const pre = document.getElementsByTagName("pre")[0];
const attrMap = pre.attributes;
pre.textContent = `The attribute map contains:
0: ${attrMap.item(0).name}
1: ${attrMap[1].name}
2: ${attrMap.item(2).name}`;
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