private static async Task CreatePromiseAsync(IJsObject window)
{
//It is also possible to create a wrapper class for IJsObject that simplifies appending the
//handlers and type checks. Such approach can be used to integrate JavaScript promises
//with async/await in the .NET application.
//Create a promise that is fulfilled and wrap this promise
Console.WriteLine("\nCreate another promise that is fulfilled...");
JsPromise promise3 = window.Invoke <IJsObject>("CreatePromise", true).AsPromise();
JsPromise.Result result = await promise3.Then(o =>
{
Console.WriteLine($"Callback:Success: {o}");
return(o);
})
.ResolveAsync();
Console.WriteLine($"Result state:{result?.State}");
Console.WriteLine($"Result type:{(result?.Data?.GetType().ToString() ?? "null")}");
//Create a promise that is rejected and wrap this promise
Console.WriteLine("\nCreate another promise that is rejected...");
JsPromise promise4 = window.Invoke <IJsObject>("CreatePromise", false).AsPromise();
result = await promise4.ResolveAsync();
Console.WriteLine($"Result state:{result?.State}");
Console.WriteLine($"Result type:{(result?.Data?.GetType().ToString() ?? "null")}");
}
public static JsPromise AsPromise(this IJsObject jsObject) => JsPromise.AsPromise(jsObject);