4chan file epoch to date title

// ==UserScript==
// @name         File dates
// @description  Adds a human readable date timestamp to file epoch timestamps
// @namespace    skitty
// @include      *://boards.4chan.org/*
// @run-at       document-start
// @author       Skitty
// @version      1
// ==/UserScript==

(function () {
    "use-strict";
    let parse = function (ID, str) {
        let fileInfo = document.querySelector("#fT"+ID.match(/(\d+)/g)[0]+" > .file-info");
        let fileText = parseInt((((str||fileInfo.querySelector("a:nth-child(1)").textContent).match(/(\d{13,})/g))||[""])[0]);
        if(fileText)
            fileInfo.title = new Date(fileText).toLocaleString();
    };
    document.addEventListener("4chanXInitFinished", function() {
        document.querySelectorAll(".file-info").forEach(function(element) {
            parse(element.parentNode.id, element.childNodes[0].text);
        });
    }, false);
    document.addEventListener("ThreadUpdate", function(e) {
        for(let i in e.detail.newPosts)
            parse(e.detail.newPosts[i]);
    }, false);
})();