Correct spelling mistakes

app/common/ActionSummary.ts

@@ -28,7 +28,7 @@ import toPairs = require('lodash/toPairs');
  * removal of a table (or column) as the special name pair [finalName, null].
  *
  * An ActionSummary contains two fields:
- *   - tableRenames: a list of table name changes (incuding addition/removal).
+ *   - tableRenames: a list of table name changes (including addition/removal).
  *   - tableDeltas: a dictionary of changes within a table.
  *
  * The key of the tableDeltas dictionary is the name of a table at the end of the
@@ -45,7 +45,7 @@ import toPairs = require('lodash/toPairs');
  *
  * The changes within a table are represented as a TableDelta, which has the following
  * fields:
- *   - columnRenames: a list of column name changes (incuding addition/removal).
+ *   - columnRenames: a list of column name changes (including addition/removal).
  *   - columnDeltas: a dictionary of changes within a column.
  *   - updateRows, removeRows, addRows: lists of affected rows.
  *

app/common/ActiveDocAPI.ts

@@ -58,7 +58,7 @@ export interface ImportResult {
 
 export interface ImportTableResult {
   hiddenTableId: string;
-  uploadFileIndex: number;      // Index into upload.files array, for the file reponsible for this table.
+  uploadFileIndex: number;      // Index into upload.files array, for the file responsible for this table.
   origTableName: string;
   transformSectionRef: number;
   destTableId: string|null;

app/common/BinaryIndexedTree.js

@@ -132,7 +132,7 @@ BinaryIndexedTree.prototype.fillFromCumulative = function(cumulValues) {
 
 
 /**
- * Creates a tree from an array of invididual values.
+ * Creates a tree from an array of individual values.
  * Takes time linear in the size of the array.
  * @param {Array<number>} - array with each element containing the value to insert.
  */

app/common/InactivityTimer.ts

@@ -2,7 +2,7 @@
  * InactivityTimer allows to set a function that executes after a certain time of
  * inactivity. Activities can be of two kinds: synchronous or asynchronous. Asynchronous activities,
  * are handle with the `disableUntiFinish` method that takes in a Promise and makes sure that the
- * timer does not start before the promise resolves. Synchroneous activities are monitored with the
+ * timer does not start before the promise resolves. Synchronous activities are monitored with the
  * `ping` method which resets the timer if called during inactivity.
  *
  * Timer won't start before any activity happens, but you may simply call ping() after construction

app/common/PluginInstance.ts

@@ -12,7 +12,7 @@ import {RenderOptions, RenderTarget} from 'app/plugin/RenderOptions';
 export type ComponentKind = "safeBrowser" | "safePython" | "unsafeNode";
 
 // Describes a function that appends some html content to `containerElement` given some
-// options. Usefull for provided by a plugin.
+// options. Useful for provided by a plugin.
 export type TargetRenderFunc = (containerElement: HTMLElement, options?: RenderOptions) => void;
 
 /**
@@ -93,7 +93,7 @@ export abstract class BaseComponent implements IForwarderDest {
  * Node Implementation for the PluginElement interface. A PluginInstance take care of activation of
  * the the plugins's components (activating, timing and deactivating), and create the api's for each contributions.
  *
- * Do not try to instanciate yourself, PluginManager does it for you. Instead use the
+ * Do not try to instantiate yourself, PluginManager does it for you. Instead use the
  * PluginManager.getPlugin(id) method that get instances for you.
  *
  */

app/common/SortFunc.ts

@@ -64,7 +64,7 @@ export function typedCompare(val1: any, val2: any): number {
   if ((result = nativeCompare(type1 = typeof val1, typeof val2)) !== 0) {
     return result;
   }
-  // We need to worry about Array comparisons because formulas returing Any may return null or
+  // We need to worry about Array comparisons because formulas returning Any may return null or
   // object values represented as arrays (e.g. ['D', ...] for dates). Comparing those without
   // distinguishing types would break the sort. Also, arrays need a special comparator.
   if (type1 === 'object') {

app/common/ValueFormatter.ts

@@ -40,7 +40,7 @@ function hasNestedObjects(value: any[]) {
  * Formats a decoded Grist value for displaying it. For top-level values, formats them the way we
  * like to see them in a cell or in, say, CSV export.
  * For top-level lists containing only simple values like strings and dates, formats them as a CSV row.
- * Nested lists and objects are formatted slighly differently, with quoted strings and ISO format for dates.
+ * Nested lists and objects are formatted slightly differently, with quoted strings and ISO format for dates.
  */
 export function formatDecoded(value: unknown, isTopLevel: boolean = true): string {
   if (typeof value === 'object' && value) {