jQuery年龄计算日期 [英] Jquery Age calculation on date

问题描述

我在以下jQuery代码中缺少什么吗?

Am I missing something in the following jQuery code?

var dob = $('#date').val();
if(dob != ''){
    var today = new Date();
    var dayDiff = Math.ceil(today - dob) / (1000 * 60 * 60 * 24 * 365);
    var age = parseInt(dayDiff);
    $('#age').html(age+' years old');
}

我正在从MySQL数据库中获取#date的预取值.

I am getting the pre-fetched value of #date from MySQL db.

<input type="text" value="1988-04-07" id="#date" name="dob" /><p id="age"></p>

它返回的是NaN，而不是正确的值.

It's returning NaN, not the correct value.

推荐答案

$('#date').val()返回字符串'1988-04-07'.您需要将其解析为实际数字.

$('#date').val() returns the string '1988-04-07'. You need to parse it into an actual number.

dob = new Date(dob);
var today = new Date();
var age = Math.floor((today-dob) / (365.25 * 24 * 60 * 60 * 1000));
$('#age').html(age+' years old');

正如@esqew指出的那样，您还需要将id="#date"更改为id="date".

As @esqew points out, you also need to change id="#date" to id="date".

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