javascript 如何使用javascript变量设置属性

how to set attribute using javascript variable

提问by Pandiyan Cool

the following is my cshtml code inside durandal application

以下是我在 durandal 应用程序中的 cshtml 代码

<script type="text/javascript" src="~/Scripts/require.js" 
  id="countryscript" data-main="**here i have to set value**"></script>

I want to set script attribute data-mainwith my javascript variable value. How to achieve this ?

我想用我的 javascript 变量值设置脚本属性data-main。如何实现这一目标？

I tried as

我试过

document.getElementById("countryscript").data-main = countrycode;

its showing syntax error near =sign. Need help..

它在=符号附近显示语法错误。需要帮忙..

采纳答案by Joorge Leal

Try this:

试试这个：

document.getElementById("countryscript").setAttribute("data-main", countrycode);

回答by Jhankar Mahbub

Taken from MDN

摘自MDN

var d = document.getElementById("countryscript"); 
d.setAttribute("data-main", countrycod);

Or if you have JQuery, this is much easier

或者如果你有 JQuery，这更容易

$('#countryscript').attr("data-main", countrycod);