What is the best way to delete a JavaScript file in Mobile Safari using JavaScript?

One of the files causing issues on my website is a Javascript file that is affecting the display specifically on iPad devices using Mobile Safari. I am looking to exclude this file only on iPads and serve it to all other browsers.

Below is the Javascript code I have:

<script type="text/javascript">
<![CDATA[
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()
 }
}

if((navigator.userAgent.match(/iPad/i)) 
{
  removejscssfile("somescript.js", "js") //remove all occurrences of "somescript.js" on the page for iPads 
}
]]
</script>

Firstly - I would appreciate feedback on whether the above Javascript code is valid (I have limited knowledge in this area).

Secondly - I am open to suggestions on whether this is the most effective approach to solving this issue.

Answer №1

If you're not utilizing php or any other platform that simplifies this process, consider approaching it differently by selectively loading files into the header of the document only if the browser being used is not an iPad.

function loadjscssfile(filename, filetype) {
    if (filetype == "js") { // Load external JavaScript file
        var fileref = document.createElement('script');
        fileref.setAttribute("type", "text/javascript");
        fileref.setAttribute("src", filename);
    } else if (filetype == "css") { // Load external CSS file
        var fileref = document.createElement("link");
        fileref.setAttribute("rel", "stylesheet");
        fileref.setAttribute("type", "text/css");
        fileref.setAttribute("href", filename);
    }
    if (typeof fileref != "undefined") {
        document.getElementsByTagName("head")[0].appendChild(fileref);
    }
}

var isiPad = navigator.userAgent.match(/iPad/i) !== null;

if (!isiPad) {
    // Load either JS or CSS files
}

Answer №2

To resolve the issue, I identified the problematic JS function and included the following code snippet:

&& navigator.userAgent.match(/ipad/i) == null

Keeping it simple always works best.

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