fix(templates): resolve type errors

templates/custom-functions/Code.gs

@@ -22,8 +22,8 @@
  * A function that takes a single input value and returns a single value.
  * Returns a simple concatenation of Strings.
  *
- * @param {String} name A name to greet.
- * @return {String} A greeting.
+ * @param {string} name A name to greet.
+ * @return {string} A greeting.
  * @customfunction
  */
 function SAY_HELLO(name) {
@@ -35,8 +35,8 @@ function SAY_HELLO(name) {
  * range of cells.
  * Returns a range with all the input values incremented by one.
  *
- * @param {Array} input The range of numbers to increment.
- * @return {Array} The incremented values.
+ * @param {any} input The range of numbers to increment.
+ * @return {any} The incremented values.
  * @customfunction
  */
 function INCREMENT(input) {
@@ -55,8 +55,8 @@ function INCREMENT(input) {
  * Returns the sum the corner values in the range; for a single cell,
  * this is equal to (4 * the cell value).
  *
- * @param {Array} input The Range of numbers to sum the corners of.
- * @return {Number} The calculated sum.
+ * @param {number | number[][]} input The Range of numbers to sum the corners of.
+ * @return {number} The calculated sum.
  * @customfunction
  */
 function CORNER_SUM(input) {
@@ -65,8 +65,8 @@ function CORNER_SUM(input) {
     return CORNER_SUM([[input]]); // eslint-disable-line new-cap
   }
   // Range processing here.
-  var maxRowIndex = input.length - 1;
-  var maxColIndex = input[0].length - 1;
+  const maxRowIndex = input.length - 1;
+  const maxColIndex = input[0].length - 1;
   return input[0][0] + input[0][maxColIndex] +
       input[maxRowIndex][0] + input[maxRowIndex][maxColIndex];
 }
@@ -76,20 +76,21 @@ function CORNER_SUM(input) {
  * Returns a range consisting of the first 10 powers and roots of that
  * number (with column headers).
  *
- * @param {Number} input The number to calculate from.
- * @return {Array} The first ten powers and roots of that number,
- *     with associated labels.
+ * @param {number} input The number to calculate from.
+ * @return {Array<Array<string|number>>} The first ten powers and roots of that
+ *     number, with associated labels.
  * @customfunction
  */
 function POWERS_AND_ROOTS(input) {
-  if (input instanceof Array) {
-    throw new Error('Invalid: Range input not permitted');
+  if (typeof input !== 'number') {
+    throw new Error('Invalid: A single number is required.');
   }
   // Value processing and range generation here.
-  var headers = ['x', input + '^x', input + '^(1/x)'];
-  var result = [headers];
-  for (var i = 1; i <= 10; i++) {
-    result.push([i, Math.pow(input, i), Math.pow(input, 1/i)]);
+  const headers = ['x', input.toString() + '^x', input.toString() + '^(1/x)'];
+  /** @type {Array<Array<string|number>>} */
+  const result = [headers];
+  for (let i = 1; i <= 10; i++) {
+    result.push([i, Math.pow(input, i), Math.pow(input, 1 / i)]);
   }
   return result;
 }
@@ -99,17 +100,17 @@ function POWERS_AND_ROOTS(input) {
  * Returns the day of the year represented by the provided date.
  *
  * @param {Date} date A Date to examine.
- * @return {Number} The day of year for that date.
+ * @return {number} The day of year for that date.
  * @customfunction
  */
 function GET_DAY_OF_YEAR(date) {
   if (!(date instanceof Date)) {
     throw new Error('Invalid: Date input required');
   }
   // Date processing here.
-  var firstOfYear = new Date(date.getFullYear(), 0, 0);
-  var diff = date - firstOfYear;
-  var oneDay = 1000 * 60 * 60 * 24;
+  const firstOfYear = new Date(date.getFullYear(), 0, 0);
+  const diff = date.getTime() - firstOfYear.getTime();
+  const oneDay = 1000 * 60 * 60 * 24;
   return Math.floor(diff / oneDay);
 }
 
@@ -118,7 +119,7 @@ function GET_DAY_OF_YEAR(date) {
  * Returns the number of seconds measured by that duration.
  *
  * @param {Date} duration A duration to convert.
- * @return {Number} Number of seconds in that duration.
+ * @return {number} Number of seconds in that duration.
  * @customfunction
  */
 function CONVERT_DURATION_TO_SECONDS(duration) {

templates/docs-addon/Code.gs

@@ -24,7 +24,7 @@ var SIDEBAR_TITLE = 'Example Sidebar';
 /**
  * Adds a custom menu with items to show the sidebar and dialog.
  *
- * @param {Object} e The event parameter for a simple onOpen trigger.
+ * @param {any} e The event parameter for a simple onOpen trigger.
  */
 function onOpen(e) {
   DocumentApp.getUi()
@@ -38,7 +38,7 @@ function onOpen(e) {
  * Runs when the add-on is installed; calls onOpen() to ensure menu creation and
  * any other initializion work is done immediately.
  *
- * @param {Object} e The event parameter for a simple onInstall trigger.
+ * @param {any} e The event parameter for a simple onInstall trigger.
  */
 function onInstall(e) {
   onOpen(e);
@@ -70,7 +70,7 @@ function showDialog() {
 /**
  * Returns the existing footer text (if any).
  *
- * @return {String} existing document footer text (as a plain string).
+ * @return {string} existing document footer text (as a plain string).
  */
 function getFooterText() {
   // Retrieve and return the information requested by the sidebar.
@@ -80,7 +80,7 @@ function getFooterText() {
 /**
  * Replaces the current document footer with the given text.
  *
- * @param {String} footerText text collected from the client-side
+ * @param {string} footerText text collected from the client-side
  *     sidebar.
  */
 function setFooterText(footerText) {
@@ -91,7 +91,7 @@ function setFooterText(footerText) {
 /**
  * Returns the document title.
  *
- * @return {String} the current document title.
+ * @return {string} the current document title.
  */
 function getDocTitle() {
   // Retrieve and return the information requested by the dialog.
@@ -101,7 +101,7 @@ function getDocTitle() {
 /**
  * Changes the document title.
  *
- * @param {String} title the new title to use for the document.
+ * @param {string} title the new title to use for the document.
  */
 function setDocTitle(title) {
   // Use data collected from dialog to manipulate the document.

templates/forms-addon/Code.gs

@@ -24,7 +24,7 @@ var SIDEBAR_TITLE = 'Example Sidebar';
 /**
  * Adds a custom menu with items to show the sidebar and dialog.
  *
- * @param {Object} e The event parameter for a simple onOpen trigger.
+ * @param {any} e The event parameter for a simple onOpen trigger.
  */
 function onOpen(e) {
   FormApp.getUi()
@@ -38,7 +38,7 @@ function onOpen(e) {
  * Runs when the add-on is installed; calls onOpen() to ensure menu creation and
  * any other initializion work is done immediately.
  *
- * @param {Object} e The event parameter for a simple onInstall trigger.
+ * @param {any} e The event parameter for a simple onInstall trigger.
  */
 function onInstall(e) {
   onOpen(e);
@@ -67,10 +67,17 @@ function showDialog() {
   FormApp.getUi().showModalDialog(ui, DIALOG_TITLE);
 }
 
+/**
+ * @typedef {{
+ *   type: string,
+ *   name: string,
+ * }} ItemData
+ */
+
 /**
  * Appends a new form item to the current form.
  *
- * @param {Object} itemData a collection of String data used to
+ * @param {ItemData} itemData a collection of String data used to
  *     determine the exact form item created.
  */
 function addFormItem(itemData) {
@@ -93,7 +100,7 @@ function addFormItem(itemData) {
  * Queries the form DocumentProperties to determine whether the formResponse
  * trigger is enabled or not.
  *
- * @return {Boolean} True if the form submit trigger is enabled; false
+ * @return {boolean} True if the form submit trigger is enabled; false
  *     otherwise.
  */
 function getTriggerState() {
@@ -105,7 +112,7 @@ function getTriggerState() {
 /**
  * Turns the form submit trigger on or off based on the given argument.
  *
- * @param {Boolean} enableTrigger whether to turn on the form submit
+ * @param {boolean} enableTrigger whether to turn on the form submit
  *     trigger or not
  */
 function adjustFormSubmitTrigger(enableTrigger) {
@@ -136,12 +143,18 @@ function adjustFormSubmitTrigger(enableTrigger) {
   }
 }
 
+/**
+ * @typedef {{
+ *  response: GoogleAppsScript.Forms.FormResponse
+ * }} FormSubmitEvent
+ */
+
 /**
  * Responds to form submit events if a form summit trigger is enabled.
  * Collects some form information and sends it as an email to the form creator.
  *
- * @param {Object} e The event parameter created by a form
- *      submission; see
+ * @param {FormSubmitEvent} e The event parameter
+ *     created by a form submission.
  *      https://developers.google.com/apps-script/understanding_events
  */
 function respondToFormSubmit(e) {

templates/sheets-addon/Code.gs

@@ -24,7 +24,7 @@ var SIDEBAR_TITLE = 'Example Sidebar';
 /**
  * Adds a custom menu with items to show the sidebar and dialog.
  *
- * @param {Object} e The event parameter for a simple onOpen trigger.
+ * @param {any} e The event parameter for a simple onOpen trigger.
  */
 function onOpen(e) {
   SpreadsheetApp.getUi()
@@ -38,7 +38,7 @@ function onOpen(e) {
  * Runs when the add-on is installed; calls onOpen() to ensure menu creation and
  * any other initializion work is done immediately.
  *
- * @param {Object} e The event parameter for a simple onInstall trigger.
+ * @param {any} e The event parameter for a simple onInstall trigger.
  */
 function onInstall(e) {
   onOpen(e);
@@ -70,7 +70,7 @@ function showDialog() {
 /**
  * Returns the value in the active cell.
  *
- * @return {String} The value of the active cell.
+ * @return {string} The value of the active cell.
  */
 function getActiveValue() {
   // Retrieve and return the information requested by the sidebar.
@@ -81,7 +81,7 @@ function getActiveValue() {
 /**
  * Replaces the active cell value with the given value.
  *
- * @param {Number} value A reference number to replace with.
+ * @param {number} value A reference number to replace with.
  */
 function setActiveValue(value) {
   // Use data collected from sidebar to manipulate the sheet.
@@ -93,7 +93,7 @@ function setActiveValue(value) {
  * Executes the specified action (create a new sheet, copy the active sheet, or
  * clear the current sheet).
  *
- * @param {String} action An identifier for the action to take.
+ * @param {string} action An identifier for the action to take.
  */
 function modifySheets(action) {
   // Use data collected from dialog to manipulate the spreadsheet.

templates/sheets-import/APICode.gs

@@ -1,3 +1,4 @@
+// @ts-nocheck
 /**
  * Copyright Google LLC
  *
@@ -14,10 +15,17 @@
  * limitations under the License.
  */
 
+/**
+ * @typedef {{
+ *   id: string,
+ *   label: string,
+ * }} ColumnOption
+ */
+
 /**
  * Return an array of potential columns (identifiers to locate them in
  * the data response object and the labels to use as column headers).
- * @return {Array} list of potential columns.
+ * @return {ColumnOption[]} list of potential columns.
  */
 function getColumnOptions() {
   var columns = [];
@@ -37,15 +45,15 @@ function getColumnOptions() {
  * Return a page of results from the data source as a 2D array of
  * values (with columns corresponding to the columns specified). Return
  * null if no data exists for the specified pageNumber.
- * @param {Array} columns an array of Strings specifying the column ids
+ * @param {string[]} columns an array of Strings specifying the column ids
  *   to include in the output.
- * @param {Number} pageNumber a number indicating what page of data to
+ * @param {number} pageNumber a number indicating what page of data to
  *   retrieve from the data source.
- * @param {Number} pageSize a number indicating the maximum number of
+ * @param {number} pageSize a number indicating the maximum number of
  *   rows to return per call.
- * @param {Object} opt_settings optional object containing any additional
- *   information needed to retrieve data from the data source.
- * @return {object[]|null} Pages of data.
+ * @param {Object<string, string>} opt_settings optional object containing any
+ *   additional information needed to retrieve data from the data source.
+ * @return {Object<string, any>|null} Pages of data.
  */
 function getDataPage(columns, pageNumber, pageSize, opt_settings) {
   var data = null;