Upgrade to ECMAScript 6

[plack-app-gruntmaster.git] / js / 90-tracker.js

diff --git a/js/90-tracker.js b/js/90-tracker.js
index 42ee1f78c16bf602f2884d86737ce91fc032646e..5e1c9a20287359597de90525795203bcbd6f9f40 100644 (file)
--- a/js/90-tracker.js
+++ b/js/90-tracker.js
@@ -1,30 +1,25 @@
-var TICK  = '<span class="tick tracker-mark">✔</span>';
-var XMARK = '<span class="x tracker-mark">✘</span>';
+const TICK  = '<span class="tick tracker-mark">✔</span>';
+const XMARK = '<span class="x tracker-mark">✘</span>';
 
 function clean_tracker(){
-       $('.tracker-mark').each(function(e){
-               e.parentNode.removeChild(e);
-       });
-       $('.tracker-info').each(function(e){
+       $('.tracker-mark').each(e => e.parentNode.removeChild(e));
+       $('.tracker-info').each(e => {
                e.classList.remove('tracker-info');
                e.classList.remove('info');
        });
 }
 
-var tracker;
+let tracker;
 
 function update_tracker(){
-       var data = localStorage.getItem('tracker_data');
-       var user = localStorage.getItem('tracker_username');
+       let data = localStorage.getItem('tracker_data');
+       let user = localStorage.getItem('tracker_username');
        if(!data)
                return;
        data = JSON.parse(data);
-       var solved = {};
-       var attempted = {};
-       var solvednr = 0;
-       var attemptednr = 0;
-       data.problems.forEach(function(e){
-               if(e.solved){
+       let contests = {}, solved = {}, attempted = {}, solvednr = 0, attemptednr = 0;
+       data.problems.forEach(e => {
+               if(e.solved) {
                        solved[e.problem] = 1;
                        solvednr++;
                } else {
@@ -33,10 +28,7 @@ function update_tracker(){
                }
        });
 
-       var contests = {};
-       data.contests.forEach(function(e){
-               contests[e.contest] = 1;
-       });
+       data.contests.forEach(e => contests[e.contest] = 1);
 
        clean_tracker();
        $('#tracker_userlink')[0].innerHTML = data.name;
@@ -46,8 +38,8 @@ function update_tracker(){
        $('#tracker_log')[0].setAttribute('href', '/log/?owner=' + user);
 
        if(location.pathname == '/pb/')
-               $('table .name a').each(function(el) {
-                       var id = el.getAttribute('href').split('?', 2)[0];
+               $('table .name a').each(el => {
+                       let id = el.getAttribute('href').split('?', 2)[0];
                        if(solved[id])
                                el.insertAdjacentHTML('beforebegin', TICK);
                        else if(attempted[id])
@@ -55,15 +47,15 @@ function update_tracker(){
                });
 
        if(location.pathname == '/ct/')
-               $('table .name a').each(function(el) {
-                       var id = el.getAttribute('href').substr(4);
+               $('table .name a').each(el => {
+                       let id = el.getAttribute('href').substr(4);
                        if(contests[id])
                                el.insertAdjacentHTML('beforebegin', TICK);
                });
 
        if(location.pathname == '/log/')
-               $('table tbody tr').each(function(el) {
-                       var owner = el.querySelector('.owner a');
+               $('table tbody tr').each(el => {
+                       let owner = el.querySelector('.owner a');
                        if(!owner || owner.getAttribute('href') != '/us/' + user)
                                return;
                        var state = el.getElementsByClassName('r0').length ? TICK : XMARK;
@@ -71,7 +63,7 @@ function update_tracker(){
                });
 
        if(location.pathname.match(/^\/st\//) || location.pathname == '/us/')
-               $('table tbody tr').each(function(el) {
+               $('table tbody tr').each(el => {
                        if(el.querySelector('.user a').getAttribute('href') == '/us/' + user){
                                el.classList.add('info');
                                el.classList.add('tracker-info');
@@ -94,7 +86,7 @@ function refresh_tracker(){
        var user = localStorage.getItem('tracker_username');
        var xhr = new XMLHttpRequest();
        xhr.open('GET', '/us/' + user + '?format=json');
-       xhr.onload = function () {
+       xhr.onload = () => {
                localStorage.setItem('tracker_data', this.responseText);
                localStorage.setItem('tracker_lastfetch', Date.now());
                update_tracker();
@@ -116,7 +108,7 @@ $(function(){
        sidebar.insertBefore(tracker, sidebar.firstChild);
        $('#tracker_stop').on('click', stop_tracking);
        $('#track_user').on('click', function() { stop_tracking(); start_tracking(this.dataset.user) });
-       $('#submitform').on('submit', function() { localStorage.removeItem('tracker_lastfetch') });
+       $('#submitform').on('submit', () => localStorage.removeItem('tracker_lastfetch'));
 
        if(localStorage.getItem('tracker_username'))
                start_tracking(localStorage.getItem('tracker_username'));