js find out how many years have passed since the specified date. There are extra 60 years

Question

js find out how many years have passed since the specified date. There are extra 60 years

const date1 = new Date(2000, 12, 4);
console.log(new Date(new Date().getTime() - date1.getTime()).getYear());

I'm trying to get how many years have passed from a given date to the current moment. But for some reason, the result is 60 years longer than it should be.

0

javascript datetime дата

Author: Gelloiss, 2020-08-28

Source

1 answers

score 0 · Answer 1

This question is equivalent to calculating the age. The answer is, for example, here: https://stackoverflow.com/questions/4060004/calculate-age-given-the-birth-date-in-the-format-yyyymmdd

Here is an example (https://stackoverflow.com/a/7091965/5122436):

function getAge(dateString) {
    var today = new Date();
    var birthDate = new Date(dateString);
    var age = today.getFullYear() - birthDate.getFullYear();
    var m = today.getMonth() - birthDate.getMonth();
    if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
        age--;
    }
    return age;
}