How do you close the browser window from a page in Blazor WebAssembly?

Close a browser window from a page in Blazor WebAssembly using JavaScript Interop with the window.close() method. The window.close() method closes the currently opened window.

In the following example, open a new browser window and close it using the window.close() method with a button onclick event.

[Index.razor]

@page "/"
@inject IJSRuntime JsRuntime

<button @onclick="@(e => OnButtonClick("open"))">Open Window</button>
<button @onclick="@(e => OnButtonClick("close"))">Close Window</button>

@code {        
    private void OnButtonClick(string value)
    {
        JsRuntime.InvokeVoidAsync($"window.{value}");
    }
}