microsoft.clearscript.v8 in use promise but return this {[undefined]} or {Microsoft.ClearScript.V8.V8ScriptItem.V8ScriptObject} about clearscript

[NamanGajjar26]

solved this error

[NamanGajjar26]

thank you for answering my question

[ClearScriptLib]

Hi @NamanGajjar26,

this newfunction return this {[undefined]} or {Microsoft.ClearScript.V8.V8ScriptItem.V8ScriptObject}

As shown above, newfunction returns no value; that is, it always returns undefined. Also, your Index method doesn't compile, because it doesn't return anything. Please clarify or provide a more complete sample.

get this error UnderlyingSystemType = '((Microsoft.ClearScript.ScriptItem)promiseResult).UnderlyingSystemType' threw an exception of type 'System.NotImplementedException'

We've tested your code in a newly created ASP.NET Core project, and we didn't see that exception. It's true that script objects in ClearScript throw NotImplementedException for the UnderlyingSystemType property, but we aren't clear about why that property is being invoked. Can you share a stack trace?

Thanks!