javascript - 在 head 中隐藏 javascript

Question

大家好:我一定是个菜鸟 - 我的 html 文件头部有这两个 javascript 脚本，但我想隐藏 api 编号以及第二个 js。我需要写什么来将这些js放在另一个文件中，右键单击鼠标/显示源代码时没有人可以读取，并且在div中出现相同的谷歌地图

我尝试输入 src="filename.js"但谷歌地图根本无法加载。

混淆 JS 代码？但是我们怎样才能把它放在一个辅助文件中呢？ src="obfuscated code.js"根本不会加载谷歌地图 只将混淆的代码放在头部，但它会扰乱谷歌索引吗？

1.  <script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=   
    ...&sensor=false"></script>
   

2.     <script type="text/javascript">
       function initialize() {
           var latlng = new google.maps.LatLng(-19.991901,57.592607);
   
           var settings = {
               zoom: 1,
               disableDoubleClickZoom: true,
               draggable: false,
               scrollwheel: false,
               minZoom: 1,
               maxZoom: 18,
               center: latlng,
               mapTypeControl: false,
               navigationControl: true,
   navigationControlOptions: {style: google.maps.NavigationControlStyle.BIG},   
               mapTypeId: google.maps.MapTypeId.ROADMAP};
      var map = new google.maps.Map(document.getElementById("map_canvas"), settings);
   
   
   
           var companyImage = new google.maps.MarkerImage('images/logo.png',
               new google.maps.Size(100,50),
               new google.maps.Point(0,0),
               new google.maps.Point(50,50)
           );
   
                var companyShadow = new google.maps.MarkerImage('images/logo_shadow.png',
               new google.maps.Size(130,50),
               new google.maps.Point(0,0),
               new google.maps.Point(65, 50));
   
           var companyPos = new google.maps.LatLng(-19.9913,57.592607);
   
           var companyMarker = new google.maps.Marker({
               position: companyPos,
               map: map,
               icon: companyImage,
               shadow: companyShadow,
               title:"Bur-Nas Beach",
               zIndex: 3});
   
   
   
   
           google.maps.event.addListener(companyMarker, 'click', function() {
               infowindow.open(map,companyMarker);
           });
       }
   </script>
   

Answer 1

好的，有一种方法可以通过动态加载 JavaScript(这意味着通过其他 JavaScript 动态注入(inject)脚本标记)并在其保留在浏览器内存中时将其删除来实现此目的。

    (function() {

    var script_tag = document.createElement('script');
    script_tag.setAttribute("type","text/javascript");
    script_tag.setAttribute("src",
        "https://maps.googleapis.com/maps/api/js?key=YOURKEYHERE");
    if (script_tag.readyState) {
      script_tag.onreadystatechange = function () { // For old versions of IE
          if (this.readyState == 'complete' || this.readyState == 'loaded') {
              main();
          }
      };
    } else { // Other browsers
      script_tag.onload = main;
    }
    // Try to find the head, otherwise default to the documentElement
    (document.getElementsByTagName("head")[0] || document.documentElement).appendChild(script_tag);

    function removejscssfile(filename, filetype){
var targetelement=(filetype=="js")? "script" : (filetype=="css")? "link" : "none" //determine element type to create nodelist from
 var targetattr=(filetype=="js")? "src" : (filetype=="css")? "href" : "none" //determine corresponding attribute to test for
 var allsuspects=document.getElementsByTagName(targetelement)
 for (var i=allsuspects.length; i>=0; i--){ //search backwards within nodelist for matching elements to remove
  if (allsuspects[i] && allsuspects[i].getAttribute(targetattr)!=null && allsuspects[i].getAttribute(targetattr).indexOf(filename)!=-1)
   allsuspects[i].parentNode.removeChild(allsuspects[i]) //remove element by calling parentNode.removeChild()
 }
}



/******** Our main function called when Maps has loaded ********/
function main() {
//initiate maps here

//remove all occurences of your script on page
    removejscssfile("https://maps.googleapis.com/maps/api/js?key=YOURKEYHERE", "js") //remove all occurences of your script on page
    //Do some cool googlemaps based stuff here

}

})(); // We call our anonymous function immediately