Hi, I would like to know how I can subtract two date objects. I have a variable date of birth and I want to subtract the current day in order to get the years of difference ...
var f = new Date();
var xf = (f.getDate() + "/" + (f.getMonth() +1) + "/" + f.getFullYear());
var xy = 1981-11-17;
var x = xf - xy; //¿se puede algo así?
document.write(x);can I do something like that ???
You can also use the following mode, through getTime that a from the date 1970/01/01 calculate the past milliseconds and with the division that I show you get the days of difference between a date and another
let fecha1 = new Date('2016/08/12');
let fecha2 = new Date()
let resta = fecha2.getTime() - fecha1.getTime()
console.log(Math.round(resta/ (1000*60*60*24)))60 sec that has one minute * 60 minutes that has one hour * 24 hrs who regularly holds a day.
Multiplication per 1000 is to reduce three quantities at the time end of the result
If you add or subtract dates must be in its format, you can also add / subtract days
var f = new Date();
var xy = new Date("1981-11-17");
var x = new Date(f.getDate() - xy.getDate());
document.write(x);
//sumando dias
f.setDate(f.getDate() + 3);
console.log(f);
//restando dias
x.setDate(x.getDate() - 3 );
console.log(x);You can use the library moment.js
It is very easy to use and helps you with all these calcluos.
For example you can do it in the following way:
var a = moment().subtract(1, 'day');
var b = moment().add(1, 'day');
Greetings!