style: Format code with prettier & lint with standard rules

source/js/algolia-search.js

-$(document).ready(function() {
-  $('.header-nav-search').click(function() {
+$(document).ready(function () {
+  $('.header-nav-search').click(function () {
     $('body').css('overflow', 'hidden');
-    $('.algolia-popup').velocity('stop')
+    $('.algolia-popup')
+      .velocity('stop')
       .velocity('transition.expandIn', {
         duration: 300,
         complete: function () {
-          $('.algolia-popup input').focus()
+          $('.algolia-popup input').focus();
         }
-      })
-    $('.algolia-mask').velocity('stop')
+      });
+    $('.algolia-mask')
+      .velocity('stop')
       .velocity('transition.fadeIn', {
         duration: 300
-      })
+      });
+  });
+
+  $('.algolia-mask, .algolia-close').on('click', function () {
+    closeSearch();
   });
 
-  $('.algolia-mask, .algolia-close')
-    .on('click', function () {
-      closeSearch();
-    });
-  
   $(document).on('keydown', function (e) {
-    var e = e || window.event;
-    
+    var ev = e || window.event;
+
     // Escape <=> 27
-    if (e.keyCode === codeToKeyCode('Escape')) {
+    if (ev.keyCode === codeToKeyCode('Escape')) {
       closeSearch();
     }
   });
 
   var algolia = CONFIG.algolia;
-  
+
   if (!(algolia.appId && algolia.apiKey && algolia.indexName)) {
     return console.error('Algolia setting is invalid.');
   }
@@ -65,19 +66,21 @@ $(document).ready(function() {
       container: '#algolia-hits',
       templates: {
         item: function (data) {
-          var link = data.permalink ? data.permalink : (CONFIG.root + data.path)
+          var link = data.permalink ? data.permalink : CONFIG.root + data.path;
           return (
-            '<a href="' + link + '" class="algolia-hit-item-link">' +
+            '<a href="' +
+            link +
+            '" class="algolia-hit-item-link">' +
             data._highlightResult.title.value +
             '</a>'
-          )
+          );
         },
         empty: function (data) {
           return (
             '<div id="algolia-hits-empty">' +
             algolia.languages.hits_empty.replace(/\$\{query}/, data.query) +
             '</div>'
-          )
+          );
         }
       },
       cssClasses: {
@@ -85,9 +88,9 @@ $(document).ready(function() {
       }
     })
   );
-  
+
   // The stats of search results.
-  if (!!$('#algolia-stats')[0]) {
+  if ($('#algolia-stats')[0]) {
     search.addWidget(
       instantsearch.widgets.stats({
         container: '#algolia-stats',
@@ -95,11 +98,13 @@ $(document).ready(function() {
           body: function (data) {
             var stats = algolia.languages.hits_stats
               .replace(/\$\{hits}/, data.nbHits)
-              .replace(/\$\{time}/, data.processingTimeMS)
+              .replace(/\$\{time}/, data.processingTimeMS);
             return (
               stats +
               '<span class="algolia-logo pull-right">' +
-              '  <img src="' + CONFIG.root + 'images/algolia.svg" alt="Algolia" />' +
+              '  <img src="' +
+              CONFIG.root +
+              'images/algolia.svg" alt="Algolia" />' +
               '</span>'
             );
           }
@@ -132,15 +137,17 @@ $(document).ready(function() {
 
   search.start();
 
-  function closeSearch() {
+  function closeSearch () {
     $('body').css('overflow', 'auto');
-    $('.algolia-popup').velocity('stop')
+    $('.algolia-popup')
+      .velocity('stop')
       .velocity('transition.expandOut', {
         duration: 300
-      })
-    $('.algolia-mask').velocity('stop')
+      });
+    $('.algolia-mask')
+      .velocity('stop')
       .velocity('transition.fadeOut', {
         duration: 300
-      })
+      });
   }
 });

source/js/copy.js

-$(document).ready(function() {
+$(document).ready(function test () {
   var CODEBLOCK_CLASS_NAME = 'highlight';
   var $codeBlocks = $('figure.highlight');
-  
-  $codeBlocks.each(function(index, item) {
+
+  $codeBlocks.each(function test (index, item) {
     if (!$(item).find('figcaption')[0]) {
-      var lang = item.getAttribute('class')
-        .split(/\s/).filter(e => e !== CODEBLOCK_CLASS_NAME);
+      var lang = item
+        .getAttribute('class')
+        .split(/\s/)
+        .filter(e => e !== CODEBLOCK_CLASS_NAME);
       var codeHeader = $(`
         <figcaption class="custom">
           <span>${lang}</span>
         </figcaption>`)[0];
-      
+
       item.insertBefore(codeHeader, $(item).find('table')[0]);
     }
   });
@@ -19,12 +21,14 @@ $(document).ready(function() {
     <div class="copy-button">
       <i class="fa fa-clipboard"></i>
     </div>`);
-  
+
   $('figure.highlight figcaption').append($copyIcon);
-  $('.copy-button').on('click', function() {
-    var codeContainer = $(this).parent('figcaption')
-        .siblings('table').find('td.code')[0];
-    
+  $('.copy-button').on('click', function () {
+    var codeContainer = $(this)
+      .parent('figcaption')
+      .siblings('table')
+      .find('td.code')[0];
+
     if (copy(codeContainer)) {
       popAlert('success', '复制成功', 4);
     } else {
@@ -36,16 +40,16 @@ $(document).ready(function() {
    * Copy code
    * @param {HTMLElement} container Container of code.
    */
-  function copy(container) {
+  function copy (container) {
     try {
       var selection = window.getSelection();
       var range = document.createRange();
-      
+
       // Select text by the content of node.
       range.selectNodeContents(container);
       selection.removeAllRanges();
       selection.addRange(range);
-        
+
       var text = selection.toString();
       var input = document.createElement('input');
 

source/js/header.js

-$(document).ready(function() {
+$(document).ready(function () {
   var $menu = $('.header-nav-menu');
 
-  $(document).click(function() {
+  $(document).click(function () {
     $menu.removeClass('show');
   });
+  [1, 2, 3].forEach(item => item);
 
-  $('.header-nav-menu a').click(function(e) {
-    var e = e || window.event;
-    e.stopPropagation();
+  $('.header-nav-menu a').click(function (e) {
+    var ev = e || window.event;
+
+    ev.stopPropagation();
   });
 
-  $('.header-nav-menu-icon').click(function() {
+  $('.header-nav-menu-icon').click(function () {
     $menu.toggleClass('show');
 
     return false;

source/js/post.js

-$(document).ready(function() {
-  $('img').each(function(index, img) {
+$(document).ready(function () {
+  $('img').each(function (index, img) {
     if (img.src.includes('?size=')) {
-      var size = img.src.split('?size=')[1] &&
-        img.src.split('?size=')[1].toLowerCase();
+      var size =
+        img.src.split('?size=')[1] && img.src.split('?size=')[1].toLowerCase();
       var w = size.split('x')[0];
       var h = size.split('x')[1];
 
@@ -11,26 +11,31 @@ $(document).ready(function() {
     }
   });
 
-  $('.reward-button').click(function() {
+  $('.reward-button').click(function () {
     if ($('.reward-qr-wrapper').css('display') === 'block') {
       $('.reward-qr-wrapper').css('display', 'none');
     } else {
-      $('.reward-qr-wrapper').velocity('stop')
+      $('.reward-qr-wrapper')
+        .velocity('stop')
         .velocity('transition.slideDownBigIn', {
           duration: 300
         });
     }
   });
 
-  $(document).on('keydown', function(e) {
-    var e = e || window.event;
+  $(document).on('keydown', function (e) {
+    var ev = e || window.event;
 
-    // ArrowLeft <=> 37
-    if (e.keyCode === codeToKeyCode('ArrowLeft')) {
-      $('.article-prev').find('a')[0].click();
-    } // ArrowRight <=> 39
-    else if (e.keyCode === codeToKeyCode('ArrowRight')) {
-      $('.article-next').find('a')[0].click();
+    if (ev.keyCode === codeToKeyCode('ArrowLeft')) {
+      // ArrowLeft <=> 37
+      $('.article-prev')
+        .find('a')[0]
+        .click();
+    } else if (ev.keyCode === codeToKeyCode('ArrowRight')) {
+      // ArrowRight <=> 39
+      $('.article-next')
+        .find('a')[0]
+        .click();
     }
   });
 });

source/js/scroll.js

-$(document).ready(function() {
+$(document).ready(function () {
   // The previous distance from the page to the top.
   var prevScrollTop = 0;
-  
+
   // Initial run.
   headerNavScroll();
   backToTop();
 
-  $(window).scroll(throttle(function () {
-    headerNavScroll();
-    backToTop();
-  }, 20, 100));
-  
+  $(window).scroll(
+    throttle(
+      function () {
+        headerNavScroll();
+        backToTop();
+      },
+      20,
+      100
+    )
+  );
+
   // Click the heading.
   $('.main-content')
     .find('h1,h2,h3,h4,h5,h6')
     .on('click', function () {
-      scrollHeadingToTop('#' + $(this).attr('id'))
+      scrollHeadingToTop('#' + $(this).attr('id'));
     });
 
   // Click the post toc.
   $('.toc-link').on('click', function (e) {
-    e.preventDefault();
+    var ev = e || window.event;
 
+    ev.preventDefault();
     scrollHeadingToTop($(this).attr('href'));
   });
 
   $('#back-top').click(function () {
-    $('body').velocity('stop')
+    $('body')
+      .velocity('stop')
       .velocity('scroll', {
         duration: 500,
         easing: 'easeOutQuart'
       });
 
     if (CONFIG.back2top_animation) {
-      $('#back-top').velocity({
-        translateY: '-100vh',
-      }, {
-        duration: 500
-      }).velocity('reverse', {
-        duration: 10
-      });
+      $('#back-top')
+        .velocity(
+          {
+            translateY: '-100vh'
+          },
+          {
+            duration: 500
+          }
+        )
+        .velocity('reverse', {
+          duration: 10
+        });
     }
   });
 
-  function headerNavScroll() {
+  function headerNavScroll () {
     var scrollTop = $(window).scrollTop();
     var delta = scrollTop - prevScrollTop;
 
@@ -70,15 +83,16 @@ $(document).ready(function() {
     prevScrollTop = scrollTop;
   }
 
-  function scrollHeadingToTop(anchor) {
-    $(anchor).velocity('stop')
+  function scrollHeadingToTop (anchor) {
+    $(anchor)
+      .velocity('stop')
       .velocity('scroll', {
         duration: 500,
         easing: 'easeOutSine'
       });
   }
 
-  function backToTop() {
+  function backToTop () {
     var scrollTop = $(window).scrollTop();
 
     if (scrollTop !== 0) {

source/js/sidebar.js

-$(document).ready(function() {
+$(document).ready(function () {
   var $toc = $('.sidebar-toc');
   var $view = $('.sidebar-overview');
-  
+
   // The heading that reached the top currently.
   var currHeading = null;
   // The heading that reached the top last time.
@@ -11,14 +11,13 @@ $(document).ready(function() {
   var isTocScroll = false;
 
   // Distance from sidebar to top.
-  var SIDEBAR_STICKY_TOP = 
-    parseInt(CONFIG.sidebar_offsetTop);
-  
+  var SIDEBAR_STICKY_TOP = parseInt(CONFIG.sidebar_offsetTop);
+
   // Is toc in anime.
   var isAnime = false;
   // Is toc in max heihgt.
   var isMaxH = true;
-  
+
   // Initial run
   autoSpreadToc();
   scrollTocToMiddle();
@@ -33,14 +32,14 @@ $(document).ready(function() {
     sidebarSticky();
     sidebarAdjustHeight();
   });
-  
+
   $('.sidebar-nav-toc').click(function () {
     $('.sidebar-nav-toc').toggleClass('current');
     $('.sidebar-nav-overview').toggleClass('current');
-    
+
     $toc.css('display', 'block');
     $toc.velocity('fadeIn');
-    
+
     $view.css('display', 'none');
     $view.velocity('fadeOut');
   });
@@ -56,34 +55,36 @@ $(document).ready(function() {
     $view.velocity('fadeIn');
   });
 
-  if ($('.main-content, .main-content-layout').height() <
-      $('#sidebar').height()) {
+  if (
+    $('.main-content, .main-content-layout').height() < $('#sidebar').height()
+  ) {
     $('#main').css('min-height', $('#main').height());
   }
 
   // Automatically expand items in the article directory
   //   based on the scrolling of heading in the article.
-  function autoSpreadToc() {
+  function autoSpreadToc () {
     var $postBody = $('.post-body');
     var $firsetChild = $postBody.find('h1,h2,h3,h4,h5,h6').first();
-    
+
     // All heading are not to the top.
-    if ($postBody[0] && (!!$firsetChild[0] && 
-        $firsetChild.offset().top - $(window).scrollTop() > 0)) {
+    if (
+      $postBody[0] &&
+      (!!$firsetChild[0] &&
+        $firsetChild.offset().top - $(window).scrollTop() > 0)
+    ) {
       $('.sidebar-toc li').removeClass('active current');
 
       return;
     }
 
-    $postBody.find('h1,h2,h3,h4,h5,h6')
-      .each(function (index, item) {
-        if (item && (item.getBoundingClientRect().top < 0)) {
-          currHeading = $(item).attr('id');
-        }
-      });
-      
+    $postBody.find('h1,h2,h3,h4,h5,h6').each(function (index, item) {
+      if (item && item.getBoundingClientRect().top < 0) {
+        currHeading = $(item).attr('id');
+      }
+    });
+
     if (currHeading === lastHeading) {
-      return;
     } else {
       var targetLink = $(`.sidebar-toc a[href="#${currHeading}"]`);
 
@@ -100,32 +101,30 @@ $(document).ready(function() {
   }
 
   // Scroll the post toc to the middle.
-  function scrollTocToMiddle() {
+  function scrollTocToMiddle () {
     var $toc = $('.sidebar-toc');
     var $currLink = $('.sidebar-toc .current a');
-    
+
     if ($currLink[0] && $toc[0]) {
       var tocTop = $currLink.offset().top - $toc.offset().top;
-      
-      isTocScroll = (tocTop > $toc.height() ||
-        tocTop < 0) ? true : false;
+
+      isTocScroll = !!(tocTop > $toc.height() || tocTop < 0);
     }
-    
+
     if (isTocScroll) {
-      $currLink.velocity('stop')
-        .velocity('scroll', {
-          container: $toc,
-          offset: -($toc.height() / 2),
-          duration: 500,
-          easing: 'easeOutQuart'
-        });
+      $currLink.velocity('stop').velocity('scroll', {
+        container: $toc,
+        offset: -($toc.height() / 2),
+        duration: 500,
+        easing: 'easeOutQuart'
+      });
     }
   }
-  
+
   // Sticky the sidebar when it arrived the top.
-  function sidebarSticky() {
+  function sidebarSticky () {
     var mainInner = $('.main-inner')[0];
-    
+
     if (mainInner) {
       var targetY = mainInner.getBoundingClientRect().top;
 
@@ -138,50 +137,58 @@ $(document).ready(function() {
   }
 
   // Auto adjust the height of sidebar when it arrive footer.
-  function sidebarAdjustHeight() {
-    var footerTop = $('#footer').offset().top
+  function sidebarAdjustHeight () {
+    var footerTop = $('#footer').offset().top;
     var footerH = $('#footer')[0].getBoundingClientRect().height;
-    var sidebarTop = $('.sidebar-inner').offset().top
+    var sidebarTop = $('.sidebar-inner').offset().top;
     var sidebarH = $('.sidebar-inner')[0].getBoundingClientRect().height;
 
     if (!isAnime && sidebarTop + sidebarH > footerTop) {
-      var targetTocH =
-        parseInt($('.sidebar-toc').css('max-height')) - footerH;
+      var targetTocH = parseInt($('.sidebar-toc').css('max-height')) - footerH;
       isAnime = true;
-      
-      $('.sidebar-toc').velocity({
-        maxHeight: targetTocH
-      }, {
-        duration: 300,
-        complete: function () {
-          isAnime = false;
-          isMaxH = false;
+
+      $('.sidebar-toc').velocity(
+        {
+          maxHeight: targetTocH
+        },
+        {
+          duration: 300,
+          complete: function () {
+            isAnime = false;
+            isMaxH = false;
+          }
         }
-      });
-    } else if (!isMaxH && !isAnime && $(window).height() <
-        $('#footer')[0].getBoundingClientRect().top) {
+      );
+    } else if (
+      !isMaxH &&
+      !isAnime &&
+      $(window).height() < $('#footer')[0].getBoundingClientRect().top
+    ) {
       isAnime = true;
-      
-      $('.sidebar-toc').velocity({
-        maxHeight: '70vh'
-      }, {
-        duration: 240,
-        complete: function () {
-          isAnime = false;
-          isMaxH = true;
+
+      $('.sidebar-toc').velocity(
+        {
+          maxHeight: '70vh'
+        },
+        {
+          duration: 240,
+          complete: function () {
+            isAnime = false;
+            isMaxH = true;
+          }
         }
-      });
+      );
     }
   }
 
   // Update the reading progress lines of post.
-  function readProgress() {
+  function readProgress () {
     var $post = $('.main-content');
-    var scrollH = ($post[0] &&
-      $post[0].getBoundingClientRect().top * -1) || 0;
-    
-    var percent = parseInt((scrollH / Math.abs(($post.height() -
-      $(window).height()))) * 100);
+    var scrollH = ($post[0] && $post[0].getBoundingClientRect().top * -1) || 0;
+
+    var percent = parseInt(
+      (scrollH / Math.abs($post.height() - $(window).height())) * 100
+    );
     percent = percent > 100 ? 100 : percent < 0 ? 0 : percent;
     percent += '%';
 

source/js/utils.js

@@ -51,8 +51,14 @@ function throttle(func, wait, mustRun) {
 function isMobile() {
   var check = false;
   (function(a) {
-    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) ||
-      /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4)))
+    if (
+      /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(
+        a
+      ) ||
+      /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(
+        a.substr(0, 4)
+      )
+    )
       check = true;
   })(navigator.userAgent || navigator.vendor || window.opera);
   return check;
@@ -64,9 +70,9 @@ function isMobile() {
  */
 function codeToKeyCode(code) {
   var codes = {
-    'ArrowLeft': 37,
-    'ArrowRight': 39,
-    'Escape': 27
+    ArrowLeft: 37,
+    ArrowRight: 39,
+    Escape: 27
   };
 
   return codes[code];
@@ -80,12 +86,12 @@ function codeToKeyCode(code) {
  */
 function popAlert(status, text, delay) {
   var icon = {
-    'success': 'check-circle',
-    'info': 'exclamation-circle',
-    'warning': 'exclamation-circle',
-    'error': 'times-circle'
+    success: 'check-circle',
+    info: 'exclamation-circle',
+    warning: 'exclamation-circle',
+    error: 'times-circle'
   };
-  
+
   if (!$('.stun-alert')[0]) {
     var $alert = $(`
       <div class="stun-message">
@@ -95,21 +101,23 @@ function popAlert(status, text, delay) {
         </div>
       </div>
     `);
-  
+
     $('body').append($alert);
   }
 
   $(document).ready(function() {
-    $('.stun-alert').velocity('stop')
+    $('.stun-alert')
+      .velocity('stop')
       .velocity('transition.slideDownBigIn', {
         duration: 300
-      }).velocity('reverse', {
+      })
+      .velocity('reverse', {
         delay: delay * 1000 || 5000,
         duration: 260,
         complete: function() {
           $('.stun-alert').css('display', 'none');
         }
-      })
+      });
   });
 }