javascript document.createElement('script').src = 变量？是否可以？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/12805212/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
document.createElement('script').src = variable? is it possible?
提问by Gorden Gram
Is it possible to create something that similar to:
是否可以创建类似于以下内容的内容：
var jsfile = "code....";
(a=(b=document).createElement('script')).src=jsfile;
b.body.appendChild(a);
where 'jsfile' is like an external js file but in our case will be a variable?
其中 'jsfile' 就像一个外部 js 文件，但在我们的例子中是一个变量？
All of my tests failed and I succeeded to get the input of 'jsfile' but if there were function inside of obj (remember I want it to preform like an external js file) they didn't executed.
我的所有测试都失败了，我成功地获得了 'jsfile' 的输入，但是如果 obj 中有函数（记住我希望它像外部 js 文件一样执行），它们没有执行。
example for a test:
测试示例：
var jsfile = "code....";
(a=(b=document).createElement('script')).text=(jsfile);
b.body.appendChild(a);
回答by Ryan Lynch
Try setting a type on the script element, like so (taken from Can't append <script> element):
尝试在脚本元素上设置类型，如下所示（取自Can't append <script> element）：
var script = document.createElement("script");
script.type = "text/javascript";
script.src = "path/to/your/javascript.js"; // use this for linked script
script.text = "alert('voila!');" // use this for inline script
document.body.appendChild(script);
回答by udidu
Yes you can, actually, the srcattribute is used only for a javascript file path, if you want to render the code you can use the innerTextproperty:
是的，实际上，该src属性仅用于 javascript 文件路径，如果要呈现代码，可以使用该innerText属性：
var code = 'alert("working!")';
var script = document.createElement('script');
script.innerText = code;
document.body.appendChild(script);
