js判斷年齡在18--80歲之間:
// 判斷年齡在18--80歲之間
function judgeAge() {
var nowdate = new Date();
var Eighteen_y = nowdate.getFullYear()-18;
var Eighty_y = nowdate.getFullYear()+80;
var m = nowdate.getMonth();
var d = nowdate.getDate();
var Eighteen_ymd = Eighteen_y.toString() + m.toString() + d.toString();
var Eighty_ymd = Eighty_y.toString() + m.toString() + d.toString();
// 86400:一天的秒數
var res_age = {Eighteen_ymd:Eighteen_ymd,Eighty_ymd:Eighty_ymd};
return res_age;
}