Type Alias

BeforeInstallPromptEvent

BeforeInstallPromptEvent: Event & { prompt: () => Promise<unknown> }

Chromium's non-standard install offer.

Type Declaration

prompt: () => Promise<unknown>
Opens the browser's own install dialog. Usable once.

Remarks

Not in lib.dom, because no standard describes it: it is a Chromium extension, and Firefox and WebKit fire nothing of the kind. It is declared here and read here, so the rest of the app never touches a browser API that may not exist.

userChoice is deliberately absent. The application does not assert whether the install happened — that outcome belongs to a dialog it does not draw — so typing the promise would only invite someone to await it.

BeforeInstallPromptEvent

Type Declaration

prompt: () => Promise<unknown>

Remarks

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