var cookieSearchRegex = new RegExp(
"(?:(?:^|.*;)\\s*" + cookieName +
"\\s*\\=\\s*([^;]*).*$)|^.*$");
return decodeURIComponent(
document.cookie.replace(
cookieSearchRegex, "$1"));
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setInterval(checkForChanges,
pollingInterval);
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No content
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localStorage, sessionStorage
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localStorage.setItem(keyName, json);
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localStorage.getItem(keyName);
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window.addEventListener("storage",
function (event) {
if (event.key === keyName) {
syncedArrayChanged(JSON.parse(
event.newValue));
}
}
);
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No content
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SharedWorker
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var worker = new SharedWorker(
"sharedworker-worker.js");
worker.port.start();
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worker.port.postMessage({
type: "newValue",
value: value
});
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worker.port.addEventListener(
"message",
function (event) {
syncedArrayChanged(event.data);
}
);
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var clients = [];
self.addEventListener("connect",
function (event) {
var port = event.ports[0];
clients.push(port);
port.addEventListener("message",
function (event) {
broadcast(event.data);
}
);
port.start();
}
);
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var broadcast = function (message) {
clients.forEach(
function (client) {
client.postMessage(message);
}
);
};
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No content
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The implementation of Shared Web Workers
was imposing undesirable constraints on the
engine. The feature never gained any adoption
and was eventually removed from the engine.
navigator.serviceWorker.controller
.postMessage({
type: "newValue",
value: value
});
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navigator.serviceWorker
.addEventListener("message",
function (event) {
valueChanged(event.data);
}
);
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self.addEventListener("message",
function (event) {
broadcast(event.data);
}
);
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var broadcast = function (message) {
self.clients.matchAll().then(
function (clients) {
clients.forEach(
function (client) {
client.postMessage(message);
}
);
}
);
};
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No content
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ServiceWorker
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Domain-Speciļ¬c Resource
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Lifecycle
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Communication
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Communication
Subscribe to Domain Events
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fetch
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fetch
push
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Where to now?
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Broadcast Events
Share Resources
Synchronize
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document.cookie
localStorage, sessionStorage
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SharedWorker
ServiceWorker
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Which, When?
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Persistent State
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Persistent State
document.cookie
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Persistent State
document.cookie
localStorage, sessionStorage
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Persistent State
document.cookie
localStorage, sessionStorage