Run Javascript when updating the page

Question

I have an Html5 application, with a single Javascript function, which keeps the scroll always at the end of the page, in this HTML, I have an update tag where I can set the automatic update time, this page will load a txt text file that is updated by an external source every 10 seconds, I wonder if it is possible to run a script whenever the page is updated?

Answer 1

try this:

window.onload = function() {
    setTimeout(function () {
        window.scrollTo(0, 1000);
        window.location.reload(1);
    }, 1000);
    var xhttp = new XMLHttpRequest();
    xhttp.open("GET", "arquivo.txt", true);
    xhttp.responseType = "text";
    xhttp.onreadystatecange = function() {
        if (xhttp.readyState ==4 && xhttp.status == 200) {
            var conteúdo = xhttp.responseText;
            var resposta = xhttp.response;
            document.writeln("variável conteúdo: " + conteúdo);

            document.writeln("variável resposta: " + resposta);
        }
    };
    xhttp.onerror = function() {
        document.writeln("<H1>Error HTTP_ERROR_" + xhttp.status + " bad request.</H1>"); // Se der erro, ele vai mostrar um aviso tipo 404...
    };
};

This code does not work on local files, just on Webserver.