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>