Working with the Blazor JavaScript Interop 3

PromptInterop.cs

using Microsoft.JSInterop;

public class PromptInterop
{
    /// <summary>
    /// Invokes a browser prompt and returns the user's input.
    /// </summary>
    public static Task<string> PromptAsync(string message) {
        return JSRuntime.Current.InvokeAsync<string>("myNamespace.showPrompt",message);
	}
}