Baseline Widely available
Note: This feature is available in Web Workers.
The readyState read-only property of the EventSource interface returns a number representing the state of the connection.
A number which is one of the three possible state constants defined on the EventSource interface:
EventSource.CONNECTING (0)
The connection is not yet open.
EventSource.OPEN (1)
The connection is open and ready to communicate.
EventSource.CLOSED (2)
The connection is closed or couldn't be opened.
const evtSource = new EventSource("sse.php");
console.log(evtSource.readyState);
Note: You can find a full example on GitHub â see Simple SSE demo using PHP.
Specifications Browser compatibility See alsoRetroSearch is an open source project built by @garambo | Open a GitHub Issue
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HTML:
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| Version:
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