Dynamic cron parameters _ Node Js

Question

I have a script that send an email to specific customer but what I'm trying to do is to fire that email in a given time and date .. so the solution is to use cron module like below and changing the parameters with what I want

 cron.schedule("* * * * * " , function(){
    }

the problem that I want to modify those parameters with varibales which contains a result for a specific calculation! like this below

const X = 234;// this values will change everyday automatically
cron.schedule("X * * * * " , function(){
    }

so is it possible to do something like that or is there a better solution that allows me to modify cron parameters

the solution that I tried but nothing is working is below :

 const x = 40;// 40 seconds
  cron.schedule(`${x} * * * *`, function(){
 }

Best Regards,

Answer 1

Many Thanks to num8er ,

the only solution for my problem is

Simply save to table jobs the stuff need to do and put cron script to run every minute which will check jobs table and will run what is scheduled by time. Example table: jobs [id, runAt, method, arguments, done], cron will run and will take jobs which is not done and runAtis less than now, will run method and pass arguments to it and after finishing it will set done=true

that's enough simple to achieve: 1 insert to table, 1 method that will run by cron and get jobs from table and execute