1、根据分辨率不同引入不同的JS
// 根据不同的分辨率引入不同的JS代码 <script> if (screen.width == 1440 && screen.height == 900){ document.writeln("<script type=\"text/javascript\" src=\"https://1.js\"><\/script>"); }else if (screen.width == 800){ document.writeln("<script type=\"text/javascript\" src=\"https://2.js\"><\/script>"); }else if (screen.width == 1152){ document.writeln("<script type=\"text/javascript\" src=\"https://3.js\"><\/script>"); }else { alert("do not know!"); } } </script>
2、 根据域名不同调用不用的JS
<script> function srcJsFiles(url){ if(url.indexOf("m.test.loc")>0){ document.writeln("<script type=\"text/javascript\" src=\"https://s1.cnzz.com/z_stat.php?id=1260142468&web_id=1260142468\"><\/script>"); return; }else if(url.indexOf("b.test.loc")>0){ document.writeln("<script type=\"text/javascript\" src=\"https://s2.cnzz.com/z_stat.php?id=1260142468&web_id=1260142468\"><\/script>"); return; }else if(url.indexOf("test.loc")>0){ document.writeln("<script type=\"text/javascript\" src=\"https://s3.cnzz.com/z_stat.php?id=1260142468&web_id=1260142468\"><\/script>"); return; } } var url = document.referrer; srcJsFiles(url); </script>