Which one is the better function for calculating age?

dipotanchangya — Tue, 16 Nov 2021 04:21:36 +0000

//#FUNCTION 1
function calcAge (dob) {
const currentYear = new Date(Date.now()).getFullYear();
const birthYear = new Date(dob).getFullYear();
return currentYear - birthYear
}

//#FUNCTION 2
function Person(name, dob) {
this.name = name;
// this.age = age;
this.birthday = new Date(dob);
this.calculateAge = function(){
const diff = Date.now() - this.birthday.getTime();
const ageDate = new Date(diff);
return Math.abs(ageDate.getUTCFullYear() - 1970);
}
}

I find it hard to understand function 2, it uses unix time.
The other one is very reader friendly, at least for me.
Your opinions are welcome.

I am looking for a mentor.

dipotanchangya — Tue, 14 Sep 2021 01:11:14 +0000

I know the basics of JS and little bit of html and css. I am looking for apprenticeship.

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Which one is the better function for calculating age?

I am looking for a mentor.