Question

我尝试在客户端添加脚本：例如：

var script = '<script type="text/javascript">document.write(\'<script type="text/javascript" src=""><\\/script>\');</script> '

$('body').html(script );

获取错误：未捕获TypeError：无法调用null的“hasAttribute”方法

Answer 1

试试这个：

var scriptlog  =document.createElement('script');
scriptlog.type ='text/javascript';
scriptlog.src  =url;
$('body').append( script );

Answer 2

var script_tag = document.createElement('script');
    script_tag.setAttribute("type", "text/javascript");
    script_tag.setAttribute("src",
        "your js url");

通过JAVASCRIPT

// Try to find the head, otherwise default to the documentElement
(document.getElementsByTagName("script")[0] || document.documentElement).insertBefore(script_tag);

通过JQUERY

$("head").append(script_tag);

Answer 3

如果要在HTML元素中动态添加脚本 -

var script = document.createElement( "script" );
script.type = "text/javascript";
script.src = "script.js";
$("body").append(script);

Refrence

Answer 4

var script = document.createElement('script');
script.type = 'text/javascript';
script.src = 'a.js';
document.head.appendChild(script)

尝试追加脚本时出错

4 个答案: