JS根据选择的日期计算年龄

本例中用的是easyUI的datebox

$('#cal_birthday').datebox({

    onSelect: function(date){

        //根据选则的日期计算年龄

        //alert(date.getFullYear()+":"+(date.getMonth()+1)+":"+date.getDate()); // 2017:6:12

        var years = 0;

        var diff = 0;

        d = new Date();

        if(date.getFullYear() < d.getFullYear()){

          years = d.getFullYear() - date.getFullYear();

          if(date.getMonth() > d.getMonth()){

            diff = -1;

          }else if(date.getMonth() == d.getMonth()){

            if(date.getDate() > d.getDate()){diff = -1;}

          }

        }

        $("#cal_age").html(years+diff);

    }

    });