Clearing browser cache of script files programmatically

Please add below script into a file called clearcache.js

(function () {
   var process_scripts = false;
    var rep = /.*\?.*/,
    links = document.getElementsByTagName('link'),
    scripts = document.getElementsByTagName('script');
    var value = document.getElementsByName('clear-browser-cache');
    for (var i = 0; i < value.length; i++) {
        var val = value[i],
            outerHTML = val.outerHTML;
        var check = /.*value="true".*/;
        if (check.test(outerHTML)) {
            process_scripts = true;
        }
    }
    for (var i = 0; i < links.length; i++) {
        var link = links[i],
        href = link.href;
        if (rep.test(href)) {
            link.href = href + '&' + Date.now();
        }
        else {
            link.href = href + '?' + Date.now();
        }
    }
    if (process_scripts) {
        for (var i = 0; i < scripts.length; i++) {
            var script = scripts[i],
            src = script.src;
            if (src !== "") {
                if (rep.test(src)) {
                    script.src = src + '&' + Date.now();
                }
                else {
                    script.src = src + '?' + Date.now();
                }
            }
        }
    }
})();


And add below script reference after your web page script file declaration within the head section.

<script name="clear-browser-cache" src='clear-browser-cache.js' value="true" ></script>

Hope the above works and always downloads your script file as latest.

orelse

add meta tags on your page then it will clear cache.like as below

<meta http-equiv='cache-control' content='no-cache'>
<meta http-equiv='expires' content='0'>
<meta http-equiv='pragma' content='no-cache'>