Baseline Widely available
HTMLCollection.length
ããããã£ã¯ãHTMLCollection
ã®ä¸ã«ããã¢ã¤ãã æ°ãè¿ãã¾ãã
æ´æ°ã®å¤ã§ãHTMLCollection
ã®ä¸ã«ããã¢ã¤ãã ã®æ°ã表ãã¾ãã
length
ããããã£ã¯ DOM ããã°ã©ãã³ã°ã§æçãªãã¨ãå¤ãã§ãããªã¹ãããã¹ã¦åå¨ãããã©ããã確èªããããã«ããªã¹ãã®é·ãããã¹ãããããã«è¯ã使ç¨ããã¾ããã¾ãããã®ä¾ã®ããã« for
ã«ã¼ãã®ã¤ãã¬ã¼ã¿ã¼ã¨ãã¦ããã使ç¨ããã¾ãã
// ææ¸å
ã§ã¯ã©ã¹ ".test" ãæã¤ãã¹ã¦ã®è¦ç´
const items = document.getElementsByClassName("test");
// ãªã¹ãå
ã®åãã¹ãé
ç®ã«ã¤ãã¦ãè¦ç´ å
¨ä½ãHTMLã®æååã¨ãã¦è¿½å ãã¾ãã
let gross = "";
for (let i = 0; i < items.length; i++) {
gross += items[i].innerHTML;
}
// gross 㯠test è¦ç´ ã® HTML ã«ãªãã¾ãã
仿§æ¸s ãã©ã¦ã¶ã¼ã®äºææ§
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HTML:
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| Encoding:
UTF-8
| Version:
0.7.4