Get Current Loggedin User SharePoint Group Names using JQuery

To get the current user logged in SharePoint group name.
If you trying to iterate all the SharePoint groups the user may get access denied error.
Note: CSOM doesn't have impersonation facelity.

Here we can get only the specific group and find to get the logged user name

ExecuteOrDelayUntilScriptLoaded(IsCurrentUserHasContribPerms, 'SP.js');
function IsCurrentUserHasContribPerms() 
{
    IsCurrentUserMemberOfGroup("Members", function (isCurrentUserInGroup) 
    {
        if(isCurrentUserInGroup)
        {
            // The current user is in the [Members] group!
        }
    });
   

}

function IsCurrentUserMemberOfGroup(groupName, OnComplete) 
{

    var currentContext = new SP.ClientContext.get_current();
    var currentWeb = currentContext.get_web();

    var currentUser = currentContext.get_web().get_currentUser();
    currentContext.load(currentUser);

    var allGroups = currentWeb.get_siteGroups();
    currentContext.load(allGroups);

    var group = allGroups.getByName(groupName);
    currentContext.load(group);

    var groupUsers = group.get_users();
    currentContext.load(groupUsers);

    currentContext.executeQueryAsync(OnSuccess,OnFailure);

    function OnSuccess(sender, args) {
        var userInGroup = false;
        var groupUserEnumerator = groupUsers.getEnumerator();

        var OwnergroupUserEnumerator = OwnergroupUsers.getEnumerator();
   var statusval= $("select[title='ApprovalStatus'] option:selected").val();
        while (OwnergroupUserEnumerator.moveNext()) {
            var OwnergroupUser = OwnergroupUserEnumerator.get_current();
            if (OwnergroupUser.get_id() == currentUser.get_id()) {
                userInGroup = true;
               
                break;
            }
        }



        OnComplete(userInGroup);
    }

    function OnFailure(sender, args) {
        OnComplete(false);
    }    
}