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BroadcastChannel: close() method

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨March 2022⁩.

Note: This feature is available in Web Workers.

The close() method of the BroadcastChannel interface terminates the connection to the underlying channel, allowing the object to be garbage collected. This is a necessary step to perform as there is no other way for a browser to know that this channel is not needed anymore.

Syntax

close()

Parameters

None.

Return value

None (undefined).

Examples

// Connect to a channel
const bc = new BroadcastChannel("test_channel");

// More operations (like postMessage, …)

// When done, disconnect from the channel
bc.close();

Specifications

Specification
HTML> # dom-broadcastchannel-close-dev>

Browser compatibility

	Desktop					Mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet	WebView Android	WebView on iOS
`close`	54	79	38	41	15.4	54	38	41	15.4	6.0	54	15.4