Syntax
js
update()
Parameters
None.
Return value
A Promise that resolves with a ServiceWorkerRegistration
object.
Examples
The following simple example registers a service worker example then adds an event handler to a button so you can explicitly update the service worker whenever desired:
js
if ("serviceWorker" in navigator) {
navigator.serviceWorker
.register("/sw.js", { scope: "/" })
.then((registration) => {
// registration worked
console.log("Registration succeeded.");
button.onclick = () => {
registration.update();
};
})
.catch((error) => {
// registration failed
console.error(`Registration failed with ${error}`);
});
}
Specifications
| Specification |
|---|
| Service Workers Nightly # service-worker-registration-update |