验证日期是否在当前日期之前 [英] Validate if date is before date of current date

问题描述

使用此功能，我有7天的时间差；如何测试日期是否在当前日期之前？

Using this function, I'm getting a 7 days difference; how can I test whether a date is before the current date?

function validateDate() {
    pickedDate = Date.parse("05-Jul-2012".replace(/-/g, " "));
    todaysDate = new Date();
    todaysDate.setHours(0, 0, 0, 0);
    dateDifference = Math.abs(Number(todaysDate) - pickedDate);
    //7 Days=604800000ms
    if (dateDifference > 604800000) {
        return false;
    } else {
        return true;
    }
}

推荐答案

您可以将两个日期直接比较为

You can directly compare both dates as

return pickedDate <= todaysDate

要考虑毫秒的确切日期比较，可以使用
JavaScript getMilliseconds（）方法

For exact date comparison considering milliseconds you can use JavaScript getMilliseconds() Method

您可以像完成操作一样解析日期：

You can parse date as you have done:

pickedDatestr = "09-Apr-2010"
var pickedDate = new Date(Date.parse(pickedDatestr.replace(/-/g, " ")))

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