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addFakeParticipant(details?) Prebuilt Custom Adds a fake participant with a synthetic video stream to the local call view. The fake participant exists only on the local client — they are not an actual participant in the call and are not visible to others. This is a convenience method for building and testing your UI without needing additional real devices or browser tabs.

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Parameters

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details.aspectRatio
number
Optional. The aspect ratio of the fake video stream. Supported values are 16/9, 3/4, and 4/3. Defaults to 16/9.

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Return value

Returns this (the DailyCall instance), allowing method chaining.

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Example

// Add one fake participant with default 16:9 aspect ratio
call.addFakeParticipant();

// Add multiple fake participants to test grid layout
call.addFakeParticipant()
    .addFakeParticipant()
    .addFakeParticipant({ aspectRatio: 4/3 });

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See also

Methods

Events