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JS Rank calculator
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Joined: 11 Dec 2010
Posts: 23
Location: Faroe Islands

Post JS Rank calculator Reply with quote
Well not to surprise everyone, but the "Rank" does not equal the row you're on, in the top list.

This annoyed me so much that I made a js script that adds the row number to the table.

if(location.href.substr(-7) == 'top.php'){
    alert("this could take up to 10 sec");
    var tbody = document.getElementsByTagName('tbody')[document.getElementsByTagName('tbody').length-1].getElementsByTagName('tr');
    for(var i=0;i<tbody.length;i++){
        tbody[i].innerHTML += "<td>"+i+"</td>";

It would be a lot nicer, if the mods could build this into the system Very Happy

:(){ :|:& };:
Thu Mar 03, 2016 5:56 pm View user's profile Send private message Send e-mail ICQ Number

Joined: 13 Feb 2009
Posts: 29
Location: Iasi Romania

Post Reply with quote
I see your point, even though the rank on the challenges section wouldn't be your actual rank.

I think you could speed up your code by avoiding to trigger multiple repaints. Take a look at this:


(function() {
    if(location.href.substr(-7) !== "top.php"){
    // var date = Date.now();
    var tbody = document.getElementsByTagName("tbody");
    tbody = tbody[tbody.length - 1];
    var clonedTable = tbody.cloneNode(true);
    var tRows = clonedTable.getElementsByTagName("tr");

    var header = tRows[0];
    var row = document.createElement("th");
    row.innerHTML = "Rank";

    for (var i = 1, n = tRows.length; i < n; i += 1) {
        row = document.createElement("td");
        row.innerHTML = i;

    var parent = tbody.parentNode;
    parent.replaceChild(clonedTable, tbody);
    // console.log(Date.now() - date);

PS: try to encapsulate your code in Self-Invoked-Anonymous (SIA) functions in order to avoid polluting the global object ( window ).

If it works, it's obsolete !
Fri Mar 04, 2016 11:18 am View user's profile Send private message
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