给定开始日期，如何在javascript中计算到当前日期为止的年数 [英] Given a start date , how to calculate number of years till current date in javascript

问题描述

我有一个开始日期值要以 dd / mm / yyyy 格式输入文本框中，一旦输入值，我就想触发该文本框的onchange事件，并使用当前日期来计算经过的年数。

I have a start date value to be entered in a textbox in dd/mm/yyyy format, and as soon as value is entered in it, i want to fire onchange event for that textbox and and use current date to calculate number of years passed.

我如何在JavaScript中做到这一点，我已经在C＃中实现了。 javascript中是否有任何函数可以帮助我计算两个日期之间的年数？

How can i do this in JavaScript, i have implemented in C#. is there any function in javascript which will help me calculate number of years between two dates?

推荐答案

在这里，我得到了解决方案

Here i got the solution

使用JavaScript计算年龄

function getAge(dateString) {
    var today = new Date();
    var birthDate = new Date(dateString);
    var age = today.getFullYear() - birthDate.getFullYear();
    var m = today.getMonth() - birthDate.getMonth();
    if (m < 0 || (m === 0 && today.getDate() < birthDate.getDate())) {
        age--;
    }
    return age;
}

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