BroadcastChannel interface represents a named channel that any browsing context of a given origin can subscribe to. It allows communication between different documents (in different windows, tabs, frames or iframes) of the same origin. Messages are broadcasted via a
message event fired at all
BroadcastChannel objects listening to the channel.
주의: 이 기능은 Web Worker에서 사용할 수 있습니다
Creates an object linking to the named channel.
This interface also inherits methods from its parent,
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