通过引用传递给JavaScript中的COM对象

Question

Trying to pass i variable to test function that must change value: 尝试将i变量传递给必须更改值的test函数：

<HTML>
<HEAD>
<TITLE> Welcome to my site</TITLE></HEAD>
<BODY>
<SCRIPT LANGUAGE="JAVASCRIPT">

var atl = new ActiveXObject("ATL.Object.1");
var i =6;
atl.test(i);
document.write(i);

</SCRIPT>
</BODY>

But in output I still have 6 . 但是在输出中我仍然有6 。 How to pass value by reference? 如何通过参考传递价值？

Answer 1

On Javascript pass by reference does not exist. 在Javascript上，按引用传递不存在。 You can use an object to pass and it works like passing by reference. 您可以使用一个对象传递，它的工作方式类似于通过引用传递。

eg : 例如：

    var atl = new ActiveXObject("ATL.Object.1");
    var i = { value: 6};
//if ActiveXObject does not work with your Object, than you need to make an adapter or store the value back to i
    atl.test(i);
    document.write(i.value);

通过引用传递给JavaScript中的COM对象

问题描述

1 个解决方案

解决方案1
0 2015-10-22 15:22:40

通过引用传递给JavaScript中的COM对象

问题描述

1 个解决方案

解决方案1 0 2015-10-22 15:22:40

解决方案1
0 2015-10-22 15:22:40