diff --git a/slides/selection/selection.gs b/slides/selection/selection.gs
index ce055104e..9880b285e 100644
--- a/slides/selection/selection.gs
+++ b/slides/selection/selection.gs
@@ -15,76 +15,88 @@
  */
 
 // [START apps_script_slides_get_selection]
-var selection = SlidesApp.getActivePresentation().getSelection();
+const selection = SlidesApp.getActivePresentation().getSelection();
 // [END apps_script_slides_get_selection]
 
 // [START apps_script_slides_get_current_page]
-var currentPage = SlidesApp.getActivePresentation().getSelection().getCurrentPage();
+const currentPage = SlidesApp.getActivePresentation().getSelection().getCurrentPage();
 // [END apps_script_slides_get_current_page]
 
-// [START apps_script_slides_selection_type]
-var selection = SlidesApp.getActivePresentation().getSelection();
-var selectionType = selection.getSelectionType();
-var currentPage;
-switch (selectionType) {
-  case SlidesApp.SelectionType.NONE:
-    Logger.log('Nothing selected');
-    break;
-  case SlidesApp.SelectionType.CURRENT_PAGE:
-    currentPage = selection.getCurrentPage();
-    Logger.log('Selection is a page with ID: ' + currentPage.getObjectId());
-    break;
-  case SlidesApp.SelectionType.PAGE_ELEMENT:
-    var pageElements = selection.getPageElementRange().getPageElements();
-    Logger.log('There are ' + pageElements.length + ' page elements selected.');
-    break;
-  case SlidesApp.SelectionType.TEXT:
-    var tableCellRange = selection.getTableCellRange();
-    if (tableCellRange != null) {
-      var tableCell = tableCellRange.getTableCells()[0];
-      Logger.log('Selected text is in a table at row ' +
-                 tableCell.getRowIndex() + ', column ' +
-                 tableCell.getColumnIndex());
-    }
-    var textRange = selection.getTextRange();
-    if (textRange.getStartIndex() == textRange.getEndIndex()) {
-      Logger.log('Text cursor position: ' + textRange.getStartIndex());
-    } else {
-      Logger.log('Selection is a text range from: ' + textRange.getStartIndex() + ' to: ' +
-                 textRange.getEndIndex() + ' is selected');
-    }
-    break;
-  case SlidesApp.SelectionType.TABLE_CELL:
-    var tableCells = selection.getTableCellRange().getTableCells();
-    var table = tableCells[0].getParentTable();
-    Logger.log('There are ' + tableCells.length + ' table cells selected.');
-    break;
-  case SlidesApp.SelectionType.PAGE:
-    var pages = selection.getPageRange().getPages();
-    Logger.log('There are ' + pages.length + ' pages selected.');
-    break;
-  default:
-    break;
-}
+/**
+ * Selection type to read the current selection in a type-appropriate way.
+ */
+function slidesSelectionTypes() {
+  // [START apps_script_slides_selection_type]
+  const selection = SlidesApp.getActivePresentation().getSelection();
+  const selectionType = selection.getSelectionType();
+  let currentPage;
+  switch (selectionType) {
+    case SlidesApp.SelectionType.NONE:
+      Logger.log('Nothing selected');
+      break;
+    case SlidesApp.SelectionType.CURRENT_PAGE:
+      currentPage = selection.getCurrentPage();
+      Logger.log('Selection is a page with ID: ' + currentPage.getObjectId());
+      break;
+    case SlidesApp.SelectionType.PAGE_ELEMENT:
+      const pageElements = selection.getPageElementRange().getPageElements();
+      Logger.log('There are ' + pageElements.length + ' page elements selected.');
+      break;
+    case SlidesApp.SelectionType.TEXT:
+      const tableCellRange = selection.getTableCellRange();
+      if (tableCellRange !== null) {
+        const tableCell = tableCellRange.getTableCells()[0];
+        Logger.log('Selected text is in a table at row ' +
+          tableCell.getRowIndex() + ', column ' +
+          tableCell.getColumnIndex());
+      }
+      const textRange = selection.getTextRange();
+      if (textRange.getStartIndex() === textRange.getEndIndex()) {
+        Logger.log('Text cursor position: ' + textRange.getStartIndex());
+      } else {
+        Logger.log('Selection is a text range from: ' + textRange.getStartIndex() + ' to: ' +
+          textRange.getEndIndex() + ' is selected');
+      }
+      break;
+    case SlidesApp.SelectionType.TABLE_CELL:
+      const tableCells = selection.getTableCellRange().getTableCells();
+      const table = tableCells[0].getParentTable();
+      Logger.log('There are ' + tableCells.length + ' table cells selected.');
+      break;
+    case SlidesApp.SelectionType.PAGE:
+      const pages = selection.getPageRange().getPages();
+      Logger.log('There are ' + pages.length + ' pages selected.');
+      break;
+    default:
+      break;
+  }
 // [END apps_script_slides_selection_type]
-
+}
+/**
+ * Selecting the current page
+ */
+function slideSelect() {
 // [START apps_script_slides_select]
 // Select the first slide as the current page selection and remove any previous selection.
-var selection = SlidesApp.getActivePresentation().getSelection();
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-slide.selectAsCurrentPage();
+  const selection = SlidesApp.getActivePresentation().getSelection();
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  slide.selectAsCurrentPage();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.CURRENT_PAGE
 // selection.getCurrentPage() = slide
 //
 // [END apps_script_slides_select]
-
+}
+/**
+ * Selecting a page element.
+ */
+function selectPageElement() {
 // [START apps_script_slides_select_page_element]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var pageElement = slide.getPageElements()[0];
-// Only select this page element and remove any previous selection.
-pageElement.select();
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const pageElement = slide.getPageElements()[0];
+  // Only select this page element and remove any previous selection.
+  pageElement.select();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.PAGE_ELEMENT
@@ -92,16 +104,20 @@ pageElement.select();
 // selection.getPageElementRange().getPageElements()[0] = pageElement
 //
 // [END apps_script_slides_select_page_element]
-
-// [START apps_script_slides_select_multiple_page_elements]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-// First select the slide page, as the current page selection.
-slide.selectAsCurrentPage();
-// Then select all the page elements in the selected slide page.
-var pageElements = slide.getPageElements();
-for (var i = 0; i < pageElements.length; i++) {
-   pageElements[i].select(false);
 }
+/**
+ * Selecting multiple page elements
+ */
+function selectMultiplePageElement() {
+// [START apps_script_slides_select_multiple_page_elements]
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  // First select the slide page, as the current page selection.
+  slide.selectAsCurrentPage();
+  // Then select all the page elements in the selected slide page.
+  const pageElements = slide.getPageElements();
+  for (let i = 0; i < pageElements.length; i++) {
+    pageElements[i].select(false);
+  }
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.PAGE_ELEMENT
@@ -109,22 +125,27 @@ for (var i = 0; i < pageElements.length; i++) {
 // selection.getPageElementRange().getPageElements() = pageElements
 //
 // [END apps_script_slides_select_multiple_page_elements]
-
+}
+/**
+ *This shows how selection can be transformed by manipulating
+ * selected page elements.
+ */
+function slideTransformSelection() {
 // [START apps_script_slides_transform_selection]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var shape1 = slide.getPageElements()[0].asShape();
-var shape2 = slide.getPageElements()[1].asShape();
-// Select both the shapes.
-shape1.select();
-shape2.select(false);
-// State of selection
-//
-// selection.getSelectionType() = SlidesApp.SelectionType.PAGE_ELEMENT
-// selection.getCurrentPage() = slide
-// selection.getPageElementRange().getPageElements() = [shape1, shape2]
-//
-// Remove one shape.
-shape2.remove();
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const shape1 = slide.getPageElements()[0].asShape();
+  const shape2 = slide.getPageElements()[1].asShape();
+  // Select both the shapes.
+  shape1.select();
+  shape2.select(false);
+  // State of selection
+  //
+  // selection.getSelectionType() = SlidesApp.SelectionType.PAGE_ELEMENT
+  // selection.getCurrentPage() = slide
+  // selection.getPageElementRange().getPageElements() = [shape1, shape2]
+  //
+  // Remove one shape.
+  shape2.remove();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.PAGE_ELEMENT
@@ -132,13 +153,17 @@ shape2.remove();
 // selection.getPageElementRange().getPageElements() = [shape1]
 //
 // [END apps_script_slides_transform_selection]
-
-// [START apps_script_slides_range_selection]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var shape = slide.getPageElements()[0].asShape();
-shape.getText().setText('Hello');
-// Range selection: Select the text range 'He'.
-shape.getText().getRange(0, 2).select();
+}
+/**
+ * Range selection within text contained in a shape.
+ */
+function slidesRangeSelection() {
+// [START apps_script_slides_range_selection_in_shape]
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const shape = slide.getPageElements()[0].asShape();
+  shape.getText().setText('Hello');
+  // Range selection: Select the text range 'He'.
+  shape.getText().getRange(0, 2).select();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.TEXT
@@ -147,14 +172,18 @@ shape.getText().getRange(0, 2).select();
 // selection.getTextRange().getStartIndex() = 0
 // selection.getTextRange().getEndIndex() = 2
 //
-// [END apps_script_slides_range_selection]
-
-// [START apps_script_slides_cursor_selection]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var shape = slide.getPageElements()[0].asShape();
-shape.getText().setText('Hello');
-// Cursor selection: Place the cursor after 'H' like 'H|ello'.
-shape.getText().getRange(1, 1).select();
+// [END apps_script_slides_range_selection_in_shape]
+}
+/**
+ * Cursor selection within text contained in a shape.
+ */
+function slidesCursorSelection() {
+// [START apps_script_slides_cursor_selection_in_shape]
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const shape = slide.getPageElements()[0].asShape();
+  shape.getText().setText('Hello');
+  // Cursor selection: Place the cursor after 'H' like 'H|ello'.
+  shape.getText().getRange(1, 1).select();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.TEXT
@@ -163,15 +192,19 @@ shape.getText().getRange(1, 1).select();
 // selection.getTextRange().getStartIndex() = 1
 // selection.getTextRange().getEndIndex() = 1
 //
-// [END apps_script_slides_cursor_selection]
-
-// [START apps_script_slides_range_selection]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var table = slide.getPageElements()[0].asTable();
-var tableCell = table.getCell(0, 1);
-tableCell.getText().setText('Hello');
-// Range selection: Select the text range 'He'.
-tableCell.getText().getRange(0, 2).select();
+// [END apps_script_slides_cursor_selection_in_shape]
+}
+/**
+ * Range selection in table cell.
+ */
+function slideRangeSelection() {
+// [START apps_script_slides_range_selection_in_table]
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const table = slide.getPageElements()[0].asTable();
+  const tableCell = table.getCell(0, 1);
+  tableCell.getText().setText('Hello');
+  // Range selection: Select the text range 'He'.
+  tableCell.getText().getRange(0, 2).select();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.TEXT
@@ -181,15 +214,19 @@ tableCell.getText().getRange(0, 2).select();
 // selection.getTextRange().getStartIndex() = 0
 // selection.getTextRange().getEndIndex() = 2
 //
-// [END apps_script_slides_range_selection]
-
-// [START apps_script_slides_cursor_selection]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var table = slide.getPageElements()[0].asTable();
-var tableCell = table.getCell(0, 1);
-tableCell.getText().setText('Hello');
-// Cursor selection: Place the cursor after 'H' like 'H|ello'.
-tableCell.getText().getRange(1, 1).select();
+// [END apps_script_slides_range_selection_in_table]
+}
+/**
+ * Cursor selection in table cell.
+ */
+function cursorSelection() {
+// [START apps_script_slides_cursor_selection_in_table]
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const table = slide.getPageElements()[0].asTable();
+  const tableCell = table.getCell(0, 1);
+  tableCell.getText().setText('Hello');
+  // Cursor selection: Place the cursor after 'H' like 'H|ello'.
+  tableCell.getText().getRange(1, 1).select();
 // State of selection
 //
 // selection.getSelectionType() = SlidesApp.SelectionType.TEXT
@@ -199,25 +236,29 @@ tableCell.getText().getRange(1, 1).select();
 // selection.getTextRange().getStartIndex() = 1
 // selection.getTextRange().getEndIndex() = 1
 //
-// [END apps_script_slides_cursor_selection]
-
+// [END apps_script_slides_cursor_selection_in_table]
+}
+/**
+ * This shows how the selection can be transformed by editing the selected text.
+ */
+function selectTransformation() {
 // [START apps_script_slides_selection_transformation]
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-var shape = slide.getPageElements()[0].asShape();
-var textRange = shape.getText();
-textRange.setText('World');
-// Select all the text 'World'.
-textRange.select();
-// State of selection
-//
-// selection.getSelectionType() = SlidesApp.SelectionType.TEXT
-// selection.getCurrentPage() = slide
-// selection.getPageElementRange().getPageElements()[0] = shape
-// selection.getTextRange().getStartIndex() = 0
-// selection.getTextRange().getEndIndex() = 6
-//
-// Add some text to the shape, and the selection will be transformed.
-textRange.insertText(0, 'Hello ');
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  const shape = slide.getPageElements()[0].asShape();
+  const textRange = shape.getText();
+  textRange.setText('World');
+  // Select all the text 'World'.
+  textRange.select();
+  // State of selection
+  //
+  // selection.getSelectionType() = SlidesApp.SelectionType.TEXT
+  // selection.getCurrentPage() = slide
+  // selection.getPageElementRange().getPageElements()[0] = shape
+  // selection.getTextRange().getStartIndex() = 0
+  // selection.getTextRange().getEndIndex() = 6
+  //
+  // Add some text to the shape, and the selection will be transformed.
+  textRange.insertText(0, 'Hello ');
 
 // State of selection
 //
@@ -228,17 +269,27 @@ textRange.insertText(0, 'Hello ');
 // selection.getTextRange().getEndIndex() = 12
 //
 // [END apps_script_slides_selection_transformation]
-
+}
+/**
+ * The following example shows how to unselect any current selections on a page
+ * by setting that page as the current page.
+ */
+function slidesUnselectingCurrentPage() {
 // [START apps_script_slides_unselecting]
 // Unselect one or more page elements already selected.
 //
 // In case one or more page elements in the first slide are selected, setting the
 // same (or any other) slide page as the current page would do the unselect.
 //
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-slide.selectAsCurrentPage();
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  slide.selectAsCurrentPage();
 // [END apps_script_slides_unselecting]
-
+}
+/**
+ * The following example shows how to unselect any current selections on a page
+ * by selecting one page element, thus removing all other items from the selection.
+ */
+function slideUnselectingPageElements() {
 // [START apps_script_slides_selecting]
 // Unselect one or more page elements already selected.
 //
@@ -246,6 +297,7 @@ slide.selectAsCurrentPage();
 // selecting any pageElement in the first slide (or any other pageElement) would
 // do the unselect and select that pageElement.
 //
-var slide = SlidesApp.getActivePresentation().getSlides()[0];
-slide.getPageElements()[0].select();
+  const slide = SlidesApp.getActivePresentation().getSlides()[0];
+  slide.getPageElements()[0].select();
 // [END apps_script_slides_selecting]
+}