JS implementation is calculated based on the age of birth

Copy code code as follows:

<script language = javascript>

Function Ages (STR)

{{

var r = str.match (/^(/d {1,4}) (-| //) (/d {1,2})/2 (/d {1,2});

if (r == null) Return false;

var d = new date (r [1], r [3] -1, r [4]);

If (d.getfullyear () == r [1] && (d.getmonth ()+1) == r [3] &&Getdate () == r [4])

{{

var y y = new date (). getfullyear ();

Return ("Age =" + (yr [1]) + "year old");

}

Return ("The input date format error!");

}

Alert (ages ("1980-03-22");

Alert (ages ("2002-01-31");

Alert (ages ("2002-01-41");

</script>