从参数中添加天数

Add days from parameter

本文关键字：添加 参数      更新时间：2023-09-26

我需要在JavaScript中的onclick事件处理程序中使用单选按钮中的参数向date对象添加一定数量的天数。当我简单地把日期加到末尾时，它只是在日期的末尾加上一个1等等。什么好主意吗?

var dateObject = new Date();
var month = dateObject.getMonth();
var monthArray = new Array("January", "February", "March", "April",  
                           "May", "June", "July", "August",
                           "September","October","November","December");
function orderReadyDate(orderTime) 
{
    var dateToday = monthArray[month] + " " + dateObject.getDate() + ", " + dateObject.getFullYear();
    document.forms[0].txtPickupDate.value = dateToday;
}

这里是我的输入按钮

<input type="radio" name="item" value="print_5x7" onclick="orderReadyDate(1)" />5x7 Prints(1 day)<br />
<input type="radio" name="item" value="poster" onclick="orderReadyDate(1)" />Poster (1 day)<br />
<input type="radio" name="item" value="mug" onclick="orderReadyDate(2)" />Coffee Mug (2 days)<br />
<input type="radio" name="item" value="shirt" onclick="orderReadyDate(3)" />T-shirt (3 days)</p>

你需要试试这个:-注意setDate方法，它会把日期加起来。

 var newdate = new Date();
 newdate.setDate(newdate.getDate() + orderTime);
 var dateToday = monthArray[newdate.getMonth()] + " " + 
                 newdate.getDate() + ", " + 
                 newdate.getFullYear();

var dateToday = monthArray[month] + " " 
        + (dateObject.getDate() + orderTime) 
        + ", " + dateObject.getFullYear();
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