Possible Duplicate:
Calculate age in JavaScript
In some point of my JS code I have jquery date object which is person's birth date. I want to calculate person's age based on his birth date.
Can anyone give example code on how to achieve this.
This question is related to
javascript
jquery
date
Try this function...
function calculate_age(birth_month,birth_day,birth_year)
{
today_date = new Date();
today_year = today_date.getFullYear();
today_month = today_date.getMonth();
today_day = today_date.getDate();
age = today_year - birth_year;
if ( today_month < (birth_month - 1))
{
age--;
}
if (((birth_month - 1) == today_month) && (today_day < birth_day))
{
age--;
}
return age;
}
OR
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;
}
function getAge(birthday) {
var today = new Date();
var thisYear = 0;
if (today.getMonth() < birthday.getMonth()) {
thisYear = 1;
} else if ((today.getMonth() == birthday.getMonth()) && today.getDate() < birthday.getDate()) {
thisYear = 1;
}
var age = today.getFullYear() - birthday.getFullYear() - thisYear;
return age;
}
You can calculate with Dates.
var birthdate = new Date("1990/1/1");
var cur = new Date();
var diff = cur-birthdate; // This is the difference in milliseconds
var age = Math.floor(diff/31557600000); // Divide by 1000*60*60*24*365.25
Source: Stackoverflow.com