Turn Blackbaud assignments into a todo list

Blackbaud Assignments TODO

// ==UserScript==
// @name         Blackbaud Assignments TODO
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Turns Assignment list into a Todo list!
// @author       Fabio Rodriguez <realgt@gmail.com>
// @require      https://code.jquery.com/jquery-2.2.4.min.js
// @require      https://raw.github.com/emn178/js-sha1/master/build/sha1.min.js
// @include      https://*.myschoolapp.com/app/*
// @grant        none
// ==/UserScript==



(function($) {
    'use strict';
    if(typeof sha1 == "undefined") return;
    let profileId = window.location.hash.split("/")[1];
    let renderTodo = function(){
        if ($("#assignment-center-assignment-items").length > 0) {
            if ($('#todo-header').length == 0){
                $(".add-existing-items-header").prepend("<th id='todo-header' width='5%'>To Do</th>");
            }

            $("#assignment-center-assignment-items tr").each(function(){
                var row=$(this);
                var rowId = sha1(row.text().trim().replace(/\s\s+/g, ' ').replace(/ /g,"_"));
                row.prepend("<input class='todo' type='checkbox' id='" + rowId + "' style='width: 25px; height: 25px;'>");
            });
            //add event handler to set value
            $(".todo").click(function(e){
                var id = $(this).attr("id");
                var checked = this.checked
                //basically we're setting the sha1 hash of the line as the id and whether its done or not
                localStorage.setItem(profileId + id,checked);
            });

            //loop over each item and set the check if its been done
            $(".todo").each(function(){
                var id = $(this).attr("id");
                var checked = localStorage.getItem(profileId + id) === "true";
                $(this).attr("checked",checked);
            });
        } else {
            console.debug("no assignments found");
        }
    }

    //trigger on page load
    $(document).ready(function() {
        setTimeout(function(){
            renderTodo();
            //add trigger on calendar button click
            $(".assignment-calendar-header").click(function(){
                setTimeout(function(){
                    renderTodo();
                },1000);
            });

        },2000);
    });

    //trigger on hash change
    window.onhashchange = function() {
        setTimeout(function(){
            renderTodo();
        },1000);
    };




})(jQuery);