Question

我想从出生之日起就知道一个人的年龄。我有一个HTML代码，我正在使用dob的datepicker，当我给出生日期时，它显示自动显示年龄而不提交。请帮我找到解决方案。

<html>
    <head>
        <title>
            DOB calculations
        </title>
        <link rel='stylesheet' type='text/css' href='jquery-ui.css' />
        <script type='text/javascript' src='jquery.min.js'>
        </script>
        <script type='text/javascript' src='jquery-ui.min.js'>
        </script>
        <script type='text/javascript' src='jquery.js'>
        </script>
        <script type='text/javascript' src='jquery-ui-custom.js'>
        </script>
        <script type='text/javascript' src='jquery.ui.datepicker.js'>
        </script>
        <script type="text/javascript">
            $(function() {

                $('#datepicker').datepicker({
                    changeMonth: true,
                    changeYear: true,
                    dateFormat: 'mm/dd/yy',
                    //firstDay: 1,
                    onSelect: function(dateText, inst) {
                        dateText.split('/');
                        Bdate = new Date(dateText[2], dateText[0] - 1, dateText[1]);
                        BDateArr = ('' + Bdate).split(' ');
                        //document.getElementById('DOW').value = BDateArr[0]; 
                        Cdate = new Date;
                        CDateArr = ('' + Cdate).split(" ");
                        Age = CDateArr[3] - BDateArr[3];
                        document.getElementById('AGE').value = Age;
                        // DOBcalc(dateText); 
                        //DOBcalc(); 
                    }
                })

            });
        </script>
    </head>

    <body>
        <form>
            DOB (mm/dd/yyyy):
            <input type="text" id="datepicker" value=''>
            Age:
            <input id="AGE" type="text" value="">
        </form>
    </body>
</html>

Answer 1

您可以尝试将此功能用作onSelect事件处理程序：

$('#dob').datepicker({
    onSelect: function(value, ui) {
        var today = new Date(),
            dob = new Date(value),
            age = new Date(today - dob).getFullYear() - 1970;

        $('#age').text(age);
    },
    maxDate: '+0d',
    yearRange: '1920:2010',
    changeMonth: true,
    changeYear: true
});

这应该非常准确（并且比我的旧代码好得多），因为所有内容都已传递给本地Date对象。

在此处查看此简单演示：http://www.jsfiddle.net/yijiang/PHvYK/1

Answer 2

function getAge(birth) {
   var today = new Date();
   var curr_date = today.getDate();
   var curr_month = today.getMonth() + 1;
   var curr_year = today.getFullYear();

   var pieces = birth.split('/');
   var birth_date = pieces[0];
   var birth_month = pieces[1];
   var birth_year = pieces[2];

   if (curr_month == birth_month && curr_date >= birth_date) return parseInt(curr_year-birth_year);
   if (curr_month == birth_month && curr_date < birth_date) return parseInt(curr_year-birth_year-1);
   if (curr_month > birth_month) return parseInt(curr_year-birth_year);
   if (curr_month < birth_month) return parseInt(curr_year-birth_year-1);
}

var age = getAge('18/01/2011');
alert(age);

Answer 3

如果你在javascript中减去两个Date个对象，你会得到它们之间的差异，因此( BDate - (new Date()) )/365.25/24/60/60/1000会给你一个年龄结果，该结果应该在一天之内准确。（即如果他们的生日是今天，而闰年则可能是不准确的）

Answer 4

    <script type="text/javascript">
        $(function() {
            $('#dtp').datepicker({
                changeMonth: true,
                changeYear: true,
                dateFormat: 'mm/dd/yy',
                //firstDay: 1,
                onSelect: function(dateText, inst) {
                    var d = new Date(Date.parse(inst.lastVal));
                    var diff = (new Date()).getFullYear() - d.getFullYear();
                    document.getElementById('AGE').value = diff;
                }
            });
        });
    </script>

Answer 5

尝试此代码非常简单

function agefinding()
    {
        var birthDay = document.getElementById("TxtDOB").value;
        var DOB = new Date(birthDay);
        var today = new Date();
        var age = today.getTime() - DOB.getTime();
        age = Math.floor(age / (1000 * 60 * 60 * 24 * 365.25));
       // alert(age);
        return age;
    }

使用javascript找到年龄非常简单

Answer 6

假设您正确构建DOB，请创建：

now = Date() //right now

使用date.getTime（）函数以毫秒为单位获取时间。将它们之间的差除以

中的毫秒数

one_year = 1000*60*60*24*365;
years = (now.getTime() - DOB.getTime())/one_year;

将其放入回调中，以便在任何日期字段中进行任何更改，并在任意位置显示结果。

给定出生日期时自动获得年龄

6 个答案: