anchor.diff:                      thead
                         tr
                           td.marker Words
  -                        td.marker(ng-repeat="item in headers") Doc_{{item}}
  +                        td.marker(ng-repeat="item in headers") Document_{{item}}
                       tr(ng-repeat="(key, value) in words")
                         td.marker {{key}}
                         td.marker(ng-repeat="item in headers")
                           span(ng-repeat="index in value")
                             span(ng-show="item == index", style="color: #3004e0; font-weight: bold") ✔
             #tab2-content(role='tabpanel', aria-labelledby='tab2', ng-switch-when='1', md-swipe-left='next()', md-swipe-right='previous()', layout='row', layout-align='center center')
  -            md-card(flex-gt-sm='90', flex-gt-md='80')
  +            md-card(flex)
                 md-card-content
                   h2(style='text-align: center; text-transform: Capitalize') Search Results
                   md-divider
  
positive.code:                 | SELECT FILES 
              p#upload-done(style="display: none; color: green; text-align: center") upload complete
              p#upload-failed(style="display: none; color: red; text-align: center") upload failed. file exists already or invalid file.
              md-list#selected-files
              input#upload-input.ng-hide(type="file", ,="", accept=".json", name="uploads[]", multiple="multiple" onchange="angular.element(this).scope().fileSelect()", ngf-pattern='application/json')
              md-progress-linear#progress(ng-if="isLoading === true", md-mode="indeterminate")
          md-dialog-actions(layout="row")
            md-button(ng-click="closeDialog()")
              | CLOSE THIS
            span(flex)
            md-button#upload.md-primary(md-no-ink, ng-click="upload(); data.selectedIndex = 0", style="margin-right:20px;")
              | UPLOAD JSON FILE(S)
  
negative.code:         .inset(hide-sm='')
          ng-switch.tabpanel-container(on='data.selectedIndex')
            #tab1-content(role='tabpanel', aria-labelledby='tab1', ng-switch-when='0', md-swipe-left='next()', md-swipe-right='previous()', layout='row', layout-align='center center')
              md-card(ng-if="dialogUnOpened")
                iframe(width='100%', height='200', src='https://www.youtube.com/embed/zG43udqng1M', frameborder='0', allowfullscreen='')
                md-card-title
                  md-card-title-text
                    span.md-headline Welcome to the Inverted Index Application!
                md-card-content
                  h3 To use this app, take the following steps:
                  ul
                    li Click on the upload button at the bottom right of your screen
                    li Click the select file button in the popup that shows, to choose your json file
                    li Make sure you choose a valid json file to enable the upload buttom
                    li Click on upoad to upload your json files
                    li After upload completes click on create index for respective json file to generate an index table
                    li To regenerate an index table for any json file click on the create index button with file name
                    li To search index, click on the search icon at the topmost-right corner of your screen
                    li Enter a search term and select files to search
                    li Click on the search button to search indexes.
              md-card(flex, ng-if="title")
                md-card-content
                  .wrap#data
                    h2(style='text-align: center; text-transform: Capitalize') Index:  {{title}}
  