Sharepoint list insert person or group field using JSOM

I am trying to insert data in to  person or group field using JSOM

Please find below code.

You have to use alias only, don't use email Id. If you have email id substring it

Ex: var userAlias= userEmailID.substring(0, userEmailID.indexOf("@")));

Now you can use below code.

	insertNewItem = function () {
	SP.SOD.executeFunc("sp.js", 'SP.ClientContext', function () {
	var objClientContext = new SP.ClientContext.get_current();
	var objWeb = objClientContext.get_web();
	var objUsers = new Array();
	objUsers.push(SP.FieldUserValue.fromUser("User Alias"));
	//You can insert more users
	objUsers.push(SP.FieldUserValue.fromUser("User1 Alias"));
	var objList = objWeb.get_lists().getByTitle("MyListTitle");
	var itemCreateInfo = new SP.ListItemCreationInformation();
	var objListItem = objList.addItem(itemCreateInfo);
	objListItem.set_item('MyTitle', "Welcome");
	objListItem.set_item('Approvers', objUsers);
	objListItem.update();
	objClientContext.executeQueryAsync(onSuccess, onFail);
	});
	}
	onSuccess = function (response) {
	console.log("Success");
	}
	onFail = function (sender, args) {
	console.log("fail");
	alert(args.get_stackTrace());
	alert(args.get_message());
	}

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