let setScript = document.createElement("script");
setScript.setAttribute("type", "text/javascript");
setScript.setAttribute("src", "https://aaa");
setScript.setAttribute("id", "aa");
document.body.insertBefore(setScript, document.body.lastChild);
// 或者最后一句可跟换为
document.parentNode.insertBefore(setScript, document)



 

jQuery动态添加script标签
1、
$.getScript(url,success(response,status));

2、
var script = document.createElement('script');

script.type = 'text/jacascript';

script.src = 'url';     //填自己的js路径

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

3、
var script=$('<script>alert("I am a script element")<\/script>');

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

4、
var script = $('<scriptsrc="....."></script>');   //创建script标签

$('body').append(script);  //将标签插入body尾部

5、
document.write('<scriptsrc="'+realation+'Js/jquery.cookie.js"></script>');

6、
var script = document.createElement("script");

script.src= "//url.com/jquery.js";

var s = document.getElementsByTagName("script")[0];

s.parentNode.insertBefore(script, s);

jQuery动态添加script标签
1、
$.getScript(url,success(response,status));
2、
var script = document.createElement('script');
script.type = 'text/jacascript';
script.src = 'url';     //填自己的js路径
$('body').append(script);
3、
var script=$('
$('body').append(script);
4、
var script = $('');   //创建script标签
$('body').append(script);  //将标签插入body尾部
5、
document.write('');
document.write('');
6、
var script = document.createElement("script");
script.src= "//url.com/jquery.js";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(script, s);
7、判断不同的设备  调用不同的js
function loadJS(src) {
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = src;
document.getElementsByTagName('body')[0].appendChild(script);
}
$(function browserRedirect() {
var sUserAgent = navigator.userAgent.toLowerCase();
if (/ipad|iphone|midp|rv:1.2.3.4|ucweb|android|windows  ce|windows mobile/.test(sUserAgent)) {
loadJS('./js/dataInfo2.js')
} else {
loadJS('./js/dataInfo.js')
}
})

var scriptElement = document.createElement('script');
document.body.appendChild(scriptElement);
scriptElement.src = "https://static.mlinks.cc/scripts/dist/mlink.min.js"

 

转载于:https://www.cnblogs.com/jongsuk0214/p/9372053.html