Baseline Widely available
DOMTokenList
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã¯ãã¹ãã¼ã¹ã§åºåããããã¼ã¯ã³ã®ã»ããã表ãã¾ããããããã»ãã㯠Element.classList
ã HTMLLinkElement.relList
ãªã©ãæ°å¤ãã®ãã®ããè¿ããããã®ã§ãã
DOMTokenList
ã®æ·»å㯠JavaScript ã® Array
ãªãã¸ã§ã¯ãã®ããã« 0
ããå§ã¾ãã¾ãã DOMTokenList
ã¯å¸¸ã«å¤§æåã¨å°æåãåºå¥ãã¾ãã
DOMTokenList.length
èªåå°ç¨
æ´æ°ã§ããã®ãªãã¸ã§ã¯ãã«æ ¼ç´ããã¦ãããªãã¸ã§ã¯ãã®æ°ã表ãã¾ãã
DOMTokenList.value
æåååããããã£ã§ããããªã¹ãã®å¤ãæååã§è¿ãã¾ãã
DOMTokenList.item()
ãã®ãªã¹ãå
ã§æå®ãããä½ç½®ã®é
ç®ãè¿ãã¾ããæå®ãããä½ç½®ããã®ãªã¹ãã® length
以ä¸ã§ããã° null
ãè¿ãã¾ãã
DOMTokenList.contains()
æå®ããããã¼ã¯ã³ããªã¹ãã«å«ã¾ãã¦ããã° true
ãè¿ããããã§ãªããã° false
ãè¿ãã¾ãã
DOMTokenList.add()
æå®ããããã¼ã¯ã³ããªã¹ãã«è¿½å ãã¾ãã
DOMTokenList.remove()
æå®ããããã¼ã¯ã³ããªã¹ãããåé¤ãã¾ãã
DOMTokenList.replace()
ãã®ãã¼ã¯ã³ãå¥ãªãã¼ã¯ã³ã§ç½®ãæãã¾ãã
DOMTokenList.supports()
æå®ããããã¼ã¯ã³ããé¢é£ä»ãããã屿§ã§å¯¾å¿ãã¦ãããã¼ã¯ã³ã§ããã° true
ãè¿ãã¾ãã
DOMTokenList.toggle()
ãããã®ãã¼ã¯ã³ãåå¨ããã°ãªã¹ãããåé¤ããåå¨ããªããã°ãã®ãã¼ã¯ã³ããªã¹ãã«è¿½å ãã¾ããæä½å¾ã«ãªã¹ãå ã«ãã®ãã¼ã¯ã³ãåå¨ãããã©ãããè«çå¤ã§è¿ãã¾ãã
DOMTokenList.entries()
ãã®ãªãã¸ã§ã¯ãå ã«å«ã¾ãããã¹ã¦ã®ãã¼ã¨å¤ã®ãã¢ãå復å¦çãããã¨ãã§ããã¤ãã¬ã¼ã¿ã¼ãè¿ãã¾ãã
DOMTokenList.forEach()
DOMTokenList
ãªãã¸ã§ã¯ãã®åè¦ç´ ã«å¯¾ã㦠1 åãã¤ãæå®ããã³ã¼ã«ããã¯é¢æ°ãå®è¡ãã¾ãã
DOMTokenList.keys()
ãã®ãªãã¸ã§ã¯ãå ã«å«ã¾ãããã¹ã¦ã®ãã¼ã¨å¤ã®ãã¢ã®ãã¡ããã¼ãå復å¦çãããã¨ãã§ããã¤ãã¬ã¼ã¿ã¼ãè¿ãã¾ãã
DOMTokenList.values()
ãã®ãªãã¸ã§ã¯ãå ã«å«ã¾ãããã¹ã¦ã®ãã¼ã¨å¤ã®ãã¢ã®ãã¡ãå¤ãå復å¦çãããã¨ãã§ããã¤ãã¬ã¼ã¿ã¼ãè¿ãã¾ãã
以ä¸ã®ç°¡åãªä¾ã§ã¯ã <p>
è¦ç´ ã®ã¯ã©ã¹ã®ãªã¹ãã Element.classList
ã使ç¨ã㦠DOMTokenList
ã¨ãã¦åãåãã DOMTokenList.add()
ã使ç¨ãã¦ã¯ã©ã¹ã 1 ã¤è¿½å ããæå¾ã« <p>
ã® Node.textContent
ã DOMTokenList
ã¨çãããªãããã«æ´æ°ãã¾ãã
ã¾ãã HTML ã¯ä»¥ä¸ã®ã¨ããã§ãã
ãã㦠JavaScript ã§ãã
let para = document.querySelector("p");
let classes = para.classList;
para.classList.add("d");
para.textContent = `段è½ã® classList 㯠"${classes}"`;
åºåçµæã¯ãã®ããã«ãªãã¾ãã
ãã¯ã¤ãã¹ãã¼ã¹ã®ããªãã³ã°ã¨éè¤ã®åé¤DOMTokenList
ãç·¨éããã¡ã½ãã (DOMTokenList.add()
ãªã©) ã¯ãèªåçã«ãã®ãªã¹ãããä½åãªãã¯ã¤ãã¹ãã¼ã¹ãããªãã³ã°ããéè¤ããå¤ãåé¤ãã¾ããä¾ãã°æ¬¡ã®ããã«ãªãã¾ãã
<span class=" d d e f"></span>
let span = document.querySelector("span");
let classes = span.classList;
span.classList.add("x");
span.textContent = `span 㮠classList 㯠"${classes}"`;
åºåçµæã¯ãã®ããã«ãªãã¾ãã
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