flywave-mapview.workerloader.waitworkerinitialized

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WorkerLoader.waitWorkerInitialized() method

Waits for successful Web Worker start.

Expects that worker script sends initial message.

If first event is message then assumes that worker has been loaded sussesfully and promise resolves to worker object passed as argument.

If first event is 'error', then it is assumed that worker failed to load and promise is rejected.

(NOTE: The initial 'message' - if received - is immediately replayed using worker's dispatchEvent, so application code can also consume it as confirmation of successful worker initialization.

We must resolve/reject promise at some time, so it is expected that any sane application will be able to load worker code in some amount of time.

Signature:

static waitWorkerInitialized(worker: Worker, timeout: number): Promise<Worker>;

Parameters

Parameter	Type	Description
worker	Worker	[[Worker]] instance to be checked
timeout	number	timeout in milliseconds, in which worker should set initial message

Returns:

Promise<Worker>

`Promise` that resolves to `worker` on success