Subtract days, months, years from a date in JavaScript

Question

Does anybody know of a simple way of taking a date (e.g. Today) and going back X days, X months and X years?

I have tried that:

var date = new Date()         


        

Answer 1

I have a simpler answer, which works perfectly for days; for months, it's +-2 days:

let today=new Date();
const days_to_subtract=30;
let new_date= new Date(today.valueOf()-(days_to_subtract*24*60*60*1000));

You get the idea - for months, multiply by 30; but that will be +-2 days.