registerPasswordUser(email,displayName,password,photoURL){
var user = null;
//nullify empty arguments
for (var i = 0; i < arguments.length; i++) {
arguments[i] = arguments[i] ? arguments[i] : null;
}
firebase.auth().createUserWithEmailAndPassword(email, password)
.then(function () {
user = firebase.auth().currentUser;
user.sendEmailVerification();
})
.then(function () {
user.updateProfile({
displayName: displayName,
photoURL: photoURL
});
})
.catch(function(error) {
console.log(error.message,7000);
});
console.log('Validation link was sent to ' + email + '.', 7000);
}