anchor.diff:  
     React.renderComponent(<CourseSummariesTable />, document.getElementById('course_summaries_table'));
   
  -</script>+</script>
  
positive.code:     getDefaultProps: function() {
        var columns = [
          {
            id: 'student_user_name',
            content: '<%= j raw I18n.t('course_summaries_index.user_name') %>',
            sortable: true,
            compare: compare_anchor_text,
            searchable: true
          },
          {
            id: 'student_first_name',
            content: '<%= j raw I18n.t('course_summaries_index.first_name') %>',
            sortable: true,
            compare: compare_anchor_text,
            searchable: false
          },
          {
            id: 'student_last_name',
            content: '<%= j raw I18n.t('course_summaries_index.last_name') %>',
            sortable: true,
            compare: compare_anchor_text,
            searchable: false
          }
        ];
        
  
negative.code:         columns.push({
            id: 'assignment_' + <%= assignment.id %>,
            content: '<%= assignment.short_identifier %>',
            sortable: true,
            compare: compare_numeric_values,
            searchable: false
          });
        <% end %>
  
        <% for grade_entry_form in @grade_entry_forms %>
          columns.push({
            id: 'gef_' + <%= grade_entry_form.id %>,
            content: '<%= grade_entry_form.short_identifier %>',
            sortable: true,
            compare: compare_numeric_values,
            searchable: false
          });
        <% end %>
  