var validator = new FieldVal(data);

validator.get("my_email", BasicVal.email(true));

validator.get("my_integer", BasicVal.integer(true));

validator.get("multiple_of_three", BasicVal.integer(true), function(val){

if(val % 3 !== 0){

return {

"error_message": "Not a multiple of three",

"error": 1000

}

}

});

console.log(validator.end());