Baseline Widely available
controller
㯠ServiceWorkerContainer
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®èªã¿åãå°ç¨ããããã£ã§ãServiceWorker
ãªãã¸ã§ã¯ãã®ç¶æ
ã activating
ã¾ã㯠activated
ãªããã (ServiceWorkerRegistration.active
ã§è¿ãããã®ã¨åããªãã¸ã§ã¯ã) ãè¿ãã¾ãããã®ããããã£ã¯ãªã¯ã¨ã¹ããå¼·å¶ãªãã¬ãã·ã¥ï¼Shift + ãªãã¬ãã·ã¥ï¼ãã¢ã¯ãã£ãã¯ã¼ã«ã¼ããªãå ´å㯠null
ãè¿ãã¾ãã
ServiceWorker
ãªãã¸ã§ã¯ãã
if ("serviceWorker" in navigator) {
// 1 åéãã®ãã§ãã¯ãè¡ã£ã¦ããµã¼ãã¹ã¯ã¼ã«ã¼ãå¶å¾¡ãã¦ãããã©ããã確èªãã¾ãã
if (navigator.serviceWorker.controller) {
console.log(
`ãã®ãã¼ã¸ãç¾å¨å¶å¾¡ãã¦ãããã®: ${navigator.serviceWorker.controller}`,
);
} else {
console.log("ãã®ãã¼ã¸ã¯ç¾å¨ãµã¼ãã¹ã¯ã¼ã«ã¼ã«ãã£ã¦å¶å¾¡ããã¦ãã¾ããã");
}
} else {
console.log("ãµã¼ãã¹ã¯ã¼ã«ã¼ããµãã¼ããã¦ãã¾ããã");
}
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