Odtnhj

I implement user-defined exception in javascript code but it is not catching the exception.

I am providing my code :

function sendRequest(URL, Data, authorization, requestType,cuboidName) 
var Response = new $.Deferred();
var json;
if (requestType.toString() == "GET") 
 $.ajax(
 url: URL,
 type: "GET",
 dataType: "json",
 headers: 
 'Authorization': authorization,
 'Accept': 'application/json'
 ,
 success: function (result) 
 Response.resolve(result);
 //console.log("Response : " + JSON.stringify(result) + "nnn");

 ,
 error: function(err)
 throw new Error("Error Code:t"+err.status+"nReason:tCuboid Download failed for Cuboid:"+cuboidName);
 
 );

return Response.promise();

I am calling the sendRequest function from the following code :

async loadDatatypeCuboid(dataCuboid)

 try
 
 dataTypeCuboiId = "444";
 var res3 = new $.Deferred(); 
 Utils.sendRequest(this.baseUrl+"rest/v1/grid/"+dataTypeCuboiId+"?importTid=-1&view=LATEST&mode=0&baselineId=-1", null, Globals.authorization, "GET","Datatype").then(function (result) 
 res3.resolve(result);
 if (result.status == 500) 
 return;
 
 else

 
 );
 return res3.promise();
 
 catch (error)
 
 console.log(error);
 

I am not able to catch the thrown error. The console is showing as :

Utils.js:26 Uncaught Error: Error Code: 500 Reason: Cuboid Download
failed for Cuboid:Datatype

can anyone suggest How to Handle Exceptions in JavaScript Promise?
Thanks in Advance