steam specific friend activity.js

// run in F12-Console under https://steamcommunity.com/id/${yourUsername}/home/
// more about friend activity: https://steamcommunity.com/sharedfiles/filedetails/?id=835308111
let steamID64 = '0'; // https://developer.valvesoftware.com/wiki/SteamID MUST BE WARPPED IN 'STRING' TO PREVENT IEEE754 related issues https://en.wikipedia.org/wiki/Nominal_number
const removeElements = () => {
  jQuery(`div.blotter_block a:not([href="https://steamcommunity.com/profiles/${steamID64}"])`)
    .parents('div.blotter_block')
    // parent elements that contain any <a href=""> not linking to user profile
    // are also including ones that contain the link to the user profile
    // so we need to exclude them
    .not(jQuery(`div.blotter_block a[href="https://steamcommunity.com/profiles/${steamID64}"]`)
      .parents('div.blotter_block'))
    .remove();
  jQuery(`div.blotter_daily_rollup_line a:not([href="https://steamcommunity.com/profiles/${steamID64}"])`)
    .parents('div.blotter_daily_rollup_line')
    .not(jQuery(`div.blotter_daily_rollup_line a[href="https://steamcommunity.com/profiles/${steamID64}"]`)
      .parents('div.blotter_daily_rollup_line'))
    .remove();
  jQuery('div.blotter_daily_rollup_line_groups').remove();
};
removeElements();
window.specificFriendActivityMutationObserver = new MutationObserver(removeElements); // listen to infinite scroll triggered updates
specificFriendActivityMutationObserver.observe(jQuery('div#blotter_content')[0], {childList: true});
// stop further listening: specificFriendActivityMutationObserver.disconnect();