Baseline Widely available
supports()
㯠HTMLScriptElement
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HTMLScriptElement.supports(type)
弿°
type
対å¿ãã¦ãããã©ããã調ã¹ãã¹ã¯ãªããã®ç¨®é¡ã示ãæååãªãã©ã«ã§ãã 対å¿ãã¦ããå¤ã¯ä»¥ä¸ã®éãã§ã大æåã¨å°æåãåºå¥ããã¾ãã
"classic"
ã¯ã©ã·ãã¯ã¹ã¯ãªããã«å¯¾å¿ãã¦ãããã©ãããæ¤æ»ãã¾ãã ãã¯ã©ã·ãã¯ãã¹ã¯ãªããã¨ã¯ãã¢ã¸ã¥ã¼ã«ã¹ã¯ãªããããåã®é常ã®ãä¼çµ±ç㪠JavaScript ãã¡ã¤ã«ã®ãã¨ã§ãã
"module"
ã¢ã¸ã¥ã¼ã«ã¹ã¯ãªããã«å¯¾å¿ãã¦ãããã©ãããæ¤æ»ãã¾ãã
"importmap"
ã¤ã³ãã¼ããããã«å¯¾å¿ãã¦ãããã©ãããæ¤æ»ãã¾ãã
"speculationrules"
ææ©ã«ã¼ã«ã«å¯¾å¿ããæå¹ã«ãªã£ã¦ãããã©ãããæ¤æ»ãã¾ãã
ä»ã®å¤ã§ããã°ããã®ã¡ã½ãã㯠false
ãè¿ãã¾ãã
æå®ãããã¹ã¯ãªããã«å¯¾å¿ãã¦ããå ´å㯠true
ããããã§ãªãå ´å㯠false
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ä¸è¨ã®ã³ã¼ã㯠HTMLScriptElement.supports()
ãå®ç¾©ããã¦ãããã©ããã調ã¹ãå®ç¾©ããã¦ããå ´åã¯ããã使ç¨ãã¦ç¹å®ã®ç¨®é¡ã®ã¹ã¯ãªããã«å¯¾å¿ãã¦ãããã©ãããæ¤æ»ããæ¹æ³ã示ãã¦ãã¾ãã
const log = document.getElementById("log");
function checkSupport(type) {
const result = HTMLScriptElement.supports(type) ? "true" : "false";
log.textContent += `HTMLScriptElement.supports('${type}') 㯠${result}\n`;
}
if (typeof HTMLScriptElement.supports === "undefined") {
log.textContent = "HTMLScriptElement.supports() ã¡ã½ããã«å¯¾å¿ãã¦ãã¾ãã";
} else {
// æ§ã
ãªç¨®é¡ã®ã¹ã¯ãªããã«å¯¾å¿ãã¦ãããã©ããããã§ãã¯
checkSupport("module");
checkSupport("classic");
checkSupport("importmap");
checkSupport("speculationrules");
// ä»ã®å¤ãªãã°ããã®ã¡ã½ãã㯠false ãè¿ã
checkSupport("anything else");
}
<textarea id="log" rows="6" cols="80"></textarea>
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HTML:
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| Version:
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