let props = {};

props["email"] = urlParams.get("email") ?  urlParams.get("email") : void(props.email);
props["lastName"] = urlParams.get("lastname") ?  urlParams.get("lastname") : void(props.lastName);
props["firstName"] = urlParams.get("firstname") ?  urlParams.get("firstname") : void(props.firstName);
urlParams.get("email") || urlParams.get("firstname") || urlParams.get("lastname") ? segmentId(props.email, props.firstName, props.lastName) : "";
  
function segmentId(e,f,l){
  if(e !== localStorage.getItem("emailtrack")){
analytics.identify({
email: e,
firstName: f,
lastName: l
});
}
  localStorage.setItem("emailtrack", e);
}