Run lebab

scripts/tags/caniuse.js

@@ -8,8 +8,8 @@
 
 function caniUse(args) {
   args = args.join('').split('@');
-  var feature = args[0];
+  const feature = args[0];
-  var periods = args[1] || 'current';
+  const periods = args[1] || 'current';
 
   if (!feature) {
     hexo.log.warn('Caniuse feature can NOT be empty.');

scripts/tags/group-pictures.js

@@ -6,7 +6,7 @@
 
 'use strict';
 
-var LAYOUTS = {
+const LAYOUTS = {
   2: {
     1: [1, 1],
     2: [2]
@@ -72,7 +72,7 @@ var LAYOUTS = {
 };
 
 function groupBy(group, data) {
-  var r = [];
+  const r = [];
   for (let count of group) {
     r.push(data.slice(0, count));
     data = data.slice(count);
@@ -80,10 +80,10 @@ function groupBy(group, data) {
   return r;
 }
 
-var templates = {
+const templates = {
 
   dispatch: function(pictures, group, layout) {
-    var rule = LAYOUTS[group] ? LAYOUTS[group][layout] : null;
+    const rule = LAYOUTS[group] ? LAYOUTS[group][layout] : null;
     return rule ? this.getHTML(groupBy(rule, pictures)) : templates.defaults(pictures);
   },
 
@@ -97,11 +97,11 @@ var templates = {
    * @param pictures
    */
   defaults: function(pictures) {
-    var ROW_SIZE = 3;
+    const ROW_SIZE = 3;
-    var rows = pictures.length / ROW_SIZE;
+    const rows = pictures.length / ROW_SIZE;
-    var pictureArr = [];
+    const pictureArr = [];
 
-    for (var i = 0; i < rows; i++) {
+    for (let i = 0; i < rows; i++) {
       pictureArr.push(pictures.slice(i * ROW_SIZE, (i + 1) * ROW_SIZE));
     }
 
@@ -115,8 +115,8 @@ var templates = {
   },
 
   getColumnHTML: function(pictures) {
-    var columnWidth = 100 / pictures.length;
+    const columnWidth = 100 / pictures.length;
-    var columnStyle = `style="width: ${columnWidth}%;"`;
+    const columnStyle = `style="width: ${columnWidth}%;"`;
     return pictures.map(picture => {
       return `<div class="group-picture-column" ${columnStyle}>${picture}</div>`;
     }).join('');
@@ -125,12 +125,12 @@ var templates = {
 
 function groupPicture(args, content) {
   args = args[0].split('-');
-  var group = parseInt(args[0], 10);
+  const group = parseInt(args[0], 10);
-  var layout = parseInt(args[1], 10);
+  const layout = parseInt(args[1], 10);
 
   content = hexo.render.renderSync({text: content, engine: 'markdown'});
 
-  var pictures = content.match(/<img[\s\S]*?>/g);
+  const pictures = content.match(/<img[\s\S]*?>/g);
 
   return `<div class="group-picture">${templates.dispatch(pictures, group, layout)}</div>`;
 }

scripts/tags/label.js

@@ -8,8 +8,8 @@
 
 function postLabel(args) {
   args = args.join(' ').split('@');
-  var classes = args[0] || 'default';
+  const classes = args[0] || 'default';
-  var text    = args[1] || '';
+  const text    = args[1] || '';
 
   !text && hexo.log.warn('Label text must be defined!');
 

scripts/tags/tabs.js

@@ -7,17 +7,17 @@
 'use strict';
 
 function postTabs(args, content) {
-  var tabBlock = /<!--\s*tab (.*?)\s*-->\n([\w\W\s\S]*?)<!--\s*endtab\s*-->/g;
+  const tabBlock = /<!--\s*tab (.*?)\s*-->\n([\w\W\s\S]*?)<!--\s*endtab\s*-->/g;
 
   args = args.join(' ').split(',');
-  var tabName = args[0];
+  const tabName = args[0];
-  var tabActive = Number(args[1]) || 0;
+  const tabActive = Number(args[1]) || 0;
 
-  var matches = [];
+  const matches = [];
-  var match;
+  let match;
-  var tabId = 0;
+  let tabId = 0;
-  var tabNav = '';
+  let tabNav = '';
-  var tabContent = '';
+  let tabContent = '';
 
   !tabName && hexo.log.warn('Tabs block must have unique name!');
 
@@ -26,12 +26,12 @@ function postTabs(args, content) {
     matches.push(match[2]);
   }
 
-  for (var i = 0; i < matches.length; i += 2) {
+  for (let i = 0; i < matches.length; i += 2) {
-    var tabParameters = matches[i].split('@');
+    const tabParameters = matches[i].split('@');
-    var postContent   = matches[i + 1];
+    let postContent   = matches[i + 1];
-    var tabCaption    = tabParameters[0] || '';
+    let tabCaption    = tabParameters[0] || '';
-    var tabIcon       = tabParameters[1] || '';
+    let tabIcon       = tabParameters[1] || '';
-    var tabHref       = '';
+    let tabHref       = '';
 
     postContent = hexo.render.renderSync({text: postContent, engine: 'markdown'}).trim();
 
@@ -40,12 +40,12 @@ function postTabs(args, content) {
 
     ((tabCaption.length === 0) && (tabIcon.length === 0)) && (tabCaption = tabName + ' ' + tabId);
 
-    var isOnlyicon = tabIcon.length > 0 && tabCaption.length === 0 ? ' style="text-align: center;"' : '';
+    const isOnlyicon = tabIcon.length > 0 && tabCaption.length === 0 ? ' style="text-align: center;"' : '';
     let icon = tabIcon.trim();
     if (!icon.startsWith('fa')) icon = 'fa fa-' + icon;
     tabIcon.length > 0 && (tabIcon = `<i class="${icon}"${isOnlyicon}></i>`);
 
-    var isActive = (tabActive > 0 && tabActive === tabId) || (tabActive === 0 && tabId === 1) ? ' active' : '';
+    const isActive = (tabActive > 0 && tabActive === tabId) || (tabActive === 0 && tabId === 1) ? ' active' : '';
     tabNav += `<li class="tab${isActive}"><a href="#${tabHref}">${tabIcon + tabCaption.trim()}</a></li>`;
     tabContent += `<div class="tab-pane${isActive}" id="${tabHref}">${postContent}</div>`;
   }

source/js/bookmark.js

@@ -3,12 +3,12 @@
 document.addEventListener('DOMContentLoaded', () => {
   'use strict';
 
-  var doSaveScroll = () => {
+  const doSaveScroll = () => {
     localStorage.setItem('bookmark' + location.pathname, window.scrollY);
   };
 
-  var scrollToMark = () => {
+  const scrollToMark = () => {
-    var top = localStorage.getItem('bookmark' + location.pathname);
+    let top = localStorage.getItem('bookmark' + location.pathname);
     top = parseInt(top, 10);
     // If the page opens with a specific hash, just jump out
     if (!isNaN(top) && location.hash === '') {
@@ -22,9 +22,9 @@ document.addEventListener('DOMContentLoaded', () => {
     }
   };
   // Register everything
-  var init = function(trigger) {
+  const init = function(trigger) {
     // Create a link element
-    var link = document.querySelector('.book-mark-link');
+    const link = document.querySelector('.book-mark-link');
     // Scroll event
     window.addEventListener('scroll', () => link.classList.toggle('book-mark-link-fixed', window.scrollY === 0));
     // Register beforeunload event when the trigger is auto

source/js/motion.js

@@ -18,7 +18,7 @@ NexT.motion.integrator = {
   },
   next: function() {
     this.cursor++;
-    var fn = this.queue[this.cursor];
+    const fn = this.queue[this.cursor];
     typeof fn === 'function' && fn(NexT.motion.integrator);
   },
   bootstrap: function() {
@@ -28,13 +28,13 @@ NexT.motion.integrator = {
 
 NexT.motion.middleWares = {
   logo: function(integrator) {
-    var sequence = [];
+    const sequence = [];
-    var brand = document.querySelector('.brand');
+    const brand = document.querySelector('.brand');
-    var image = document.querySelector('.custom-logo-image');
+    const image = document.querySelector('.custom-logo-image');
-    var title = document.querySelector('.site-title');
+    const title = document.querySelector('.site-title');
-    var subtitle = document.querySelector('.site-subtitle');
+    const subtitle = document.querySelector('.site-subtitle');
-    var logoLineTop = document.querySelector('.logo-line-before i');
+    const logoLineTop = document.querySelector('.logo-line-before i');
-    var logoLineBottom = document.querySelector('.logo-line-after i');
+    const logoLineBottom = document.querySelector('.logo-line-after i');
 
     brand && sequence.push({
       e: brand,
@@ -112,7 +112,7 @@ NexT.motion.middleWares = {
   },
 
   subMenu: function(integrator) {
-    var subMenuItem = document.querySelectorAll('.sub-menu .menu-item');
+    const subMenuItem = document.querySelectorAll('.sub-menu .menu-item');
     if (subMenuItem.length > 0) {
       subMenuItem.forEach(element => {
         element.style.opacity = 1;
@@ -122,17 +122,17 @@ NexT.motion.middleWares = {
   },
 
   postList: function(integrator) {
-    var postBlock = document.querySelectorAll('.post-block, .pagination, .comments');
+    const postBlock = document.querySelectorAll('.post-block, .pagination, .comments');
-    var postBlockTransition = CONFIG.motion.transition.post_block;
+    const postBlockTransition = CONFIG.motion.transition.post_block;
-    var postHeader = document.querySelectorAll('.post-header');
+    const postHeader = document.querySelectorAll('.post-header');
-    var postHeaderTransition = CONFIG.motion.transition.post_header;
+    const postHeaderTransition = CONFIG.motion.transition.post_header;
-    var postBody = document.querySelectorAll('.post-body');
+    const postBody = document.querySelectorAll('.post-body');
-    var postBodyTransition = CONFIG.motion.transition.post_body;
+    const postBodyTransition = CONFIG.motion.transition.post_body;
-    var collHeader = document.querySelectorAll('.collection-header');
+    const collHeader = document.querySelectorAll('.collection-header');
-    var collHeaderTransition = CONFIG.motion.transition.coll_header;
+    const collHeaderTransition = CONFIG.motion.transition.coll_header;
 
     if (postBlock.length > 0) {
-      var postMotionOptions = window.postMotionOptions || {
+      const postMotionOptions = window.postMotionOptions || {
         stagger : 100,
         drag    : true,
         complete: function() {
@@ -159,8 +159,8 @@ NexT.motion.middleWares = {
   },
 
   sidebar: function(integrator) {
-    var sidebarAffix = document.querySelector('.sidebar-inner');
+    const sidebarAffix = document.querySelector('.sidebar-inner');
-    var sidebarAffixTransition = CONFIG.motion.transition.sidebar;
+    const sidebarAffixTransition = CONFIG.motion.transition.sidebar;
     // Only for Pisces | Gemini.
     if (sidebarAffixTransition && (CONFIG.scheme === 'Pisces' || CONFIG.scheme === 'Gemini')) {
       Velocity(sidebarAffix, 'transition.' + sidebarAffixTransition, {

source/js/next-boot.js

@@ -10,9 +10,9 @@ NexT.boot.registerEvents = function() {
   // Mobile top menu bar.
   document.querySelector('.site-nav-toggle .toggle').addEventListener('click', () => {
     event.currentTarget.classList.toggle('toggle-close');
-    var siteNav = document.querySelector('.site-nav');
+    const siteNav = document.querySelector('.site-nav');
     if (!siteNav) return;
-    var animateAction = siteNav.classList.contains('site-nav-on') ? 'slideUp' : 'slideDown';
+    const animateAction = siteNav.classList.contains('site-nav-on') ? 'slideUp' : 'slideDown';
 
     if (typeof Velocity === 'function') {
       Velocity(siteNav, animateAction, {
@@ -26,17 +26,17 @@ NexT.boot.registerEvents = function() {
     }
   });
 
-  var TAB_ANIMATE_DURATION = 200;
+  const TAB_ANIMATE_DURATION = 200;
   document.querySelectorAll('.sidebar-nav li').forEach((element, index) => {
     element.addEventListener('click', event => {
-      var item = event.currentTarget;
+      const item = event.currentTarget;
-      var activeTabClassName = 'sidebar-nav-active';
+      const activeTabClassName = 'sidebar-nav-active';
-      var activePanelClassName = 'sidebar-panel-active';
+      const activePanelClassName = 'sidebar-panel-active';
       if (item.classList.contains(activeTabClassName)) return;
 
-      var targets = document.querySelectorAll('.sidebar-panel');
+      const targets = document.querySelectorAll('.sidebar-panel');
-      var target = targets[index];
+      const target = targets[index];
-      var currentTarget = targets[1 - index];
+      const currentTarget = targets[1 - index];
       window.anime({
         targets : currentTarget,
         duration: TAB_ANIMATE_DURATION,
@@ -66,9 +66,9 @@ NexT.boot.registerEvents = function() {
   window.addEventListener('resize', NexT.utils.initSidebarDimension);
 
   window.addEventListener('hashchange', () => {
-    var tHash = location.hash;
+    const tHash = location.hash;
     if (tHash !== '' && !tHash.match(/%\S{2}/)) {
-      var target = document.querySelector(`.tabs ul.nav-tabs li a[href="${tHash}"]`);
+      const target = document.querySelector(`.tabs ul.nav-tabs li a[href="${tHash}"]`);
       target && target.click();
     }
   });

source/js/schemes/muse.js

@@ -2,12 +2,12 @@
 
 document.addEventListener('DOMContentLoaded', () => {
 
-  var isRight = CONFIG.sidebar.position === 'right';
+  const isRight = CONFIG.sidebar.position === 'right';
-  var SIDEBAR_WIDTH = CONFIG.sidebar.width || 320;
+  const SIDEBAR_WIDTH = CONFIG.sidebar.width || 320;
-  var SIDEBAR_DISPLAY_DURATION = 200;
+  const SIDEBAR_DISPLAY_DURATION = 200;
-  var mousePos = {};
+  const mousePos = {};
 
-  var sidebarToggleLines = {
+  const sidebarToggleLines = {
     lines: document.querySelector('.sidebar-toggle'),
     init : function() {
       this.lines.classList.remove('toggle-arrow', 'toggle-close');
@@ -22,7 +22,7 @@ document.addEventListener('DOMContentLoaded', () => {
     }
   };
 
-  var sidebarToggleMotion = {
+  const sidebarToggleMotion = {
     sidebarEl       : document.querySelector('.sidebar'),
     isSidebarVisible: false,
     init            : function() {
@@ -42,9 +42,9 @@ document.addEventListener('DOMContentLoaded', () => {
       mousePos.Y = event.pageY;
     },
     mouseupHandler: function(event) {
-      var deltaX = event.pageX - mousePos.X;
+      const deltaX = event.pageX - mousePos.X;
-      var deltaY = event.pageY - mousePos.Y;
+      const deltaY = event.pageY - mousePos.Y;
-      var clickingBlankPart = Math.sqrt((deltaX * deltaX) + (deltaY * deltaY)) < 20 && event.target.matches('.main');
+      const clickingBlankPart = Math.sqrt((deltaX * deltaX) + (deltaY * deltaY)) < 20 && event.target.matches('.main');
       if (this.isSidebarVisible && (clickingBlankPart || event.target.matches('img.medium-zoom-image, .fancybox img'))) {
         this.hideSidebar();
       }
@@ -102,8 +102,8 @@ document.addEventListener('DOMContentLoaded', () => {
   sidebarToggleMotion.init();
 
   function updateFooterPosition() {
-    var footer = document.querySelector('.footer');
+    const footer = document.querySelector('.footer');
-    var containerHeight = document.querySelector('.header').offsetHeight + document.querySelector('.main').offsetHeight + footer.offsetHeight;
+    const containerHeight = document.querySelector('.header').offsetHeight + document.querySelector('.main').offsetHeight + footer.offsetHeight;
     footer.classList.toggle('footer-fixed', containerHeight <= window.innerHeight);
   }
 

source/js/schemes/pisces.js

@@ -1,6 +1,6 @@
 /* global NexT, CONFIG */
 
-var Affix = {
+const Affix = {
   init: function(element, options) {
     this.element = element;
     this.offset = options || 0;

source/js/utils.js

@@ -13,9 +13,9 @@ NexT.utils = {
    */
   wrapImageWithFancyBox: function() {
     document.querySelectorAll('.post-body :not(a) > img, .post-body > img').forEach(element => {
-      var $image = $(element);
+      const $image = $(element);
-      var imageLink = $image.attr('data-src') || $image.attr('src');
+      const imageLink = $image.attr('data-src') || $image.attr('src');
-      var $imageWrapLink = $image.wrap(`<a class="fancybox fancybox.image" href="${imageLink}" itemscope itemtype="http://schema.org/ImageObject" itemprop="url"></a>`).parent('a');
+      const $imageWrapLink = $image.wrap(`<a class="fancybox fancybox.image" href="${imageLink}" itemscope itemtype="http://schema.org/ImageObject" itemprop="url"></a>`).parent('a');
       if ($image.is('.post-gallery img')) {
         $imageWrapLink.attr('data-fancybox', 'gallery').attr('rel', 'gallery');
       } else if ($image.is('.group-picture img')) {
@@ -24,7 +24,7 @@ NexT.utils = {
         $imageWrapLink.attr('data-fancybox', 'default').attr('rel', 'default');
       }
 
-      var imageTitle = $image.attr('title') || $image.attr('alt');
+      const imageTitle = $image.attr('title') || $image.attr('alt');
       if (imageTitle) {
         $imageWrapLink.append(`<p class="image-caption">${imageTitle}</p>`);
         // Make sure img title tag will show correctly in fancybox
@@ -138,16 +138,16 @@ NexT.utils = {
   },
 
   registerScrollPercent: function() {
-    var THRESHOLD = 50;
+    const THRESHOLD = 50;
-    var backToTop = document.querySelector('.back-to-top');
+    const backToTop = document.querySelector('.back-to-top');
-    var readingProgressBar = document.querySelector('.reading-progress-bar');
+    const readingProgressBar = document.querySelector('.reading-progress-bar');
     // For init back to top in sidebar if page was scrolled after page refresh.
     window.addEventListener('scroll', () => {
       if (backToTop || readingProgressBar) {
-        var docHeight = document.querySelector('.container').offsetHeight;
+        const docHeight = document.querySelector('.container').offsetHeight;
-        var winHeight = window.innerHeight;
+        const winHeight = window.innerHeight;
-        var contentVisibilityHeight = docHeight > winHeight ? docHeight - winHeight : document.body.scrollHeight - winHeight;
+        const contentVisibilityHeight = docHeight > winHeight ? docHeight - winHeight : document.body.scrollHeight - winHeight;
-        var scrollPercent = Math.min(100 * window.scrollY / contentVisibilityHeight, 100);
+        const scrollPercent = Math.min(100 * window.scrollY / contentVisibilityHeight, 100);
         if (backToTop) {
           backToTop.classList.toggle('back-to-top-on', window.scrollY > THRESHOLD);
           backToTop.querySelector('span').innerText = Math.round(scrollPercent) + '%';
@@ -176,7 +176,7 @@ NexT.utils = {
     document.querySelectorAll('.tabs ul.nav-tabs .tab').forEach(element => {
       element.addEventListener('click', event => {
         event.preventDefault();
-        var target = event.currentTarget;
+        const target = event.currentTarget;
         // Prevent selected tab to select again.
         if (!target.classList.contains('active')) {
           // Add & Remove active class on `nav-tabs` & `tab-content`.
@@ -184,7 +184,7 @@ NexT.utils = {
             element.classList.remove('active');
           });
           target.classList.add('active');
-          var tActive = document.getElementById(target.querySelector('a').getAttribute('href').replace('#', ''));
+          const tActive = document.getElementById(target.querySelector('a').getAttribute('href').replace('#', ''));
           [...tActive.parentNode.children].forEach(element => {
             element.classList.remove('active');
           });
@@ -204,8 +204,8 @@ NexT.utils = {
     // Get responsive height passed from iframe.
     window.addEventListener('message', ({ data }) => {
       if ((typeof data === 'string') && data.includes('ciu_embed')) {
-        var featureID = data.split(':')[1];
+        const featureID = data.split(':')[1];
-        var height = data.split(':')[2];
+        const height = data.split(':')[2];
         document.querySelector(`iframe[data-feature=${featureID}]`).style.height = parseInt(height, 10) + 5 + 'px';
       }
     }, false);
@@ -213,10 +213,10 @@ NexT.utils = {
 
   registerActiveMenuItem: function() {
     document.querySelectorAll('.menu-item').forEach(element => {
-      var target = element.querySelector('a[href]');
+      const target = element.querySelector('a[href]');
       if (!target) return;
-      var isSamePath = target.pathname === location.pathname || target.pathname === location.pathname.replace('index.html', '');
+      const isSamePath = target.pathname === location.pathname || target.pathname === location.pathname.replace('index.html', '');
-      var isSubPath = !CONFIG.root.startsWith(target.pathname) && location.pathname.startsWith(target.pathname);
+      const isSubPath = !CONFIG.root.startsWith(target.pathname) && location.pathname.startsWith(target.pathname);
       element.classList.toggle('menu-item-active', target.hostname === location.hostname && (isSamePath || isSubPath));
     });
   },
@@ -236,12 +236,12 @@ NexT.utils = {
   registerSidebarTOC: function() {
     const navItems = document.querySelectorAll('.post-toc li');
     const sections = [...navItems].map(element => {
-      var link = element.querySelector('a.nav-link');
+      const link = element.querySelector('a.nav-link');
       // TOC item animation navigate.
       link.addEventListener('click', event => {
         event.preventDefault();
-        var target = document.getElementById(event.currentTarget.getAttribute('href').replace('#', ''));
+        const target = document.getElementById(event.currentTarget.getAttribute('href').replace('#', ''));
-        var offset = target.getBoundingClientRect().top + window.scrollY;
+        const offset = target.getBoundingClientRect().top + window.scrollY;
         window.anime({
           targets  : document.scrollingElement,
           duration : 500,
@@ -252,7 +252,7 @@ NexT.utils = {
       return document.getElementById(link.getAttribute('href').replace('#', ''));
     });
 
-    var tocElement = document.querySelector('.post-toc-wrap');
+    const tocElement = document.querySelector('.post-toc-wrap');
     function activateNavByIndex(target) {
       if (target.classList.contains('active-current')) return;
 
@@ -260,7 +260,7 @@ NexT.utils = {
         element.classList.remove('active', 'active-current');
       });
       target.classList.add('active', 'active-current');
-      var parent = target.parentNode;
+      let parent = target.parentNode;
       while (!parent.matches('.post-toc')) {
         if (parent.matches('li')) parent.classList.add('active');
         parent = parent.parentNode;
@@ -344,22 +344,22 @@ NexT.utils = {
    * Need for Sidebar/TOC inner scrolling if content taller then viewport.
    */
   initSidebarDimension: function() {
-    var sidebarNav = document.querySelector('.sidebar-nav');
+    const sidebarNav = document.querySelector('.sidebar-nav');
-    var sidebarNavHeight = sidebarNav.style.display !== 'none' ? sidebarNav.offsetHeight : 0;
+    const sidebarNavHeight = sidebarNav.style.display !== 'none' ? sidebarNav.offsetHeight : 0;
-    var sidebarOffset = CONFIG.sidebar.offset || 12;
+    const sidebarOffset = CONFIG.sidebar.offset || 12;
-    var sidebarb2tHeight = CONFIG.back2top.enable && CONFIG.back2top.sidebar ? document.querySelector('.back-to-top').offsetHeight : 0;
+    const sidebarb2tHeight = CONFIG.back2top.enable && CONFIG.back2top.sidebar ? document.querySelector('.back-to-top').offsetHeight : 0;
-    var sidebarSchemePadding = (CONFIG.sidebar.padding * 2) + sidebarNavHeight + sidebarb2tHeight;
+    let sidebarSchemePadding = (CONFIG.sidebar.padding * 2) + sidebarNavHeight + sidebarb2tHeight;
     // Margin of sidebar b2t: -4px -10px -18px, brings a different of 22px.
     if (CONFIG.scheme === 'Pisces' || CONFIG.scheme === 'Gemini') sidebarSchemePadding += (sidebarOffset * 2) - 22;
     // Initialize Sidebar & TOC Height.
-    var sidebarWrapperHeight = document.body.offsetHeight - sidebarSchemePadding + 'px';
+    const sidebarWrapperHeight = document.body.offsetHeight - sidebarSchemePadding + 'px';
     document.querySelector('.site-overview-wrap').style.maxHeight = sidebarWrapperHeight;
     document.querySelector('.post-toc-wrap').style.maxHeight = sidebarWrapperHeight;
   },
 
   updateSidebarPosition: function() {
-    var sidebarNav = document.querySelector('.sidebar-nav');
+    const sidebarNav = document.querySelector('.sidebar-nav');
-    var hasTOC = document.querySelector('.post-toc');
+    const hasTOC = document.querySelector('.post-toc');
     if (hasTOC) {
       sidebarNav.style.display = '';
       sidebarNav.classList.add('motion-element');
@@ -372,7 +372,7 @@ NexT.utils = {
     NexT.utils.initSidebarDimension();
     if (!this.isDesktop() || CONFIG.scheme === 'Pisces' || CONFIG.scheme === 'Gemini') return;
     // Expand sidebar on post detail page by default, when post has a toc.
-    var display = CONFIG.page.sidebar;
+    let display = CONFIG.page.sidebar;
     if (typeof display !== 'boolean') {
       // There's no definition sidebar in the page front-matter.
       display = CONFIG.sidebar.display === 'always' || (CONFIG.sidebar.display === 'post' && hasTOC);
@@ -386,7 +386,7 @@ NexT.utils = {
     if (condition) {
       callback();
     } else {
-      var script = document.createElement('script');
+      let script = document.createElement('script');
       script.onload = script.onreadystatechange = function(_, isAbort) {
         if (isAbort || !script.readyState || /loaded|complete/.test(script.readyState)) {
           script.onload = script.onreadystatechange = null;