code: function createWechat ($container, $data) {
              var $wechat = $container.find('a.icon-wechat');
  
              if (!$wechat.length) {return;}
  
              $wechat.append('<div class="wechat-qrcode"><h4>'+$data.wechatQrcodeTitle+'</h4><div class="qrcode"></div><div class="help">'+$data.wechatQrcodeHelper+'</div></div>');
  
              $wechat.find('.qrcode').qrcode({render: 'image', size: $data.wechatQrcodeSize, text: $data.url});
  
              if ($wechat.offset().top < 100) {
                  $wechat.find('.wechat-qrcode').addClass('bottom');
              }
          }
docs: Create the wechat icon and QRCode.
  
  @param {Object|String} $container
  @param {Object}        $data