docs: update comments to use consistent code formatting for boolean values (angular#57619)

PR Close angular#57619

Author: JeevanMahesha

goldens/public-api/common/index.api.md

@@ -536,20 +536,20 @@ export { NgForOf }
 
 // @public (undocumented)
 export class NgForOfContext<T, U extends NgIterable<T> = NgIterable<T>> {
-    // (undocumented)
     $implicit: T;
-    constructor($implicit: T, ngForOf: U, index: number, count: number);
-    // (undocumented)
+    constructor(
+    $implicit: T,
+    ngForOf: U,
+    index: number,
+    count: number);
     count: number;
     // (undocumented)
     get even(): boolean;
     // (undocumented)
     get first(): boolean;
-    // (undocumented)
     index: number;
     // (undocumented)
     get last(): boolean;
-    // (undocumented)
     ngForOf: U;
     // (undocumented)
     get odd(): boolean;

packages/common/src/directives/ng_for_of.ts

@@ -29,24 +29,39 @@ import {RuntimeErrorCode} from '../errors';
  */
 export class NgForOfContext<T, U extends NgIterable<T> = NgIterable<T>> {
   constructor(
+    /** Reference to the current item from the collection. */
     public $implicit: T,
+
+    /**
+     * The value of the iterable expression. Useful when the expression is
+     * more complex then a property access, for example when using the async pipe
+     * (`userStreams | async`).
+     */
     public ngForOf: U,
+
+    /** Returns an index of the current item in the collection. */
     public index: number,
+
+    /** Returns total amount of items in the collection. */
     public count: number,
   ) {}
 
+  // Indicates whether this is the first item in the collection.
   get first(): boolean {
     return this.index === 0;
   }
 
+  // Indicates whether this is the last item in the collection.
   get last(): boolean {
     return this.index === this.count - 1;
   }
 
+  // Indicates whether an index of this item in the collection is even.
   get even(): boolean {
     return this.index % 2 === 0;
   }
 
+  // Indicates whether an index of this item in the collection is odd.
   get odd(): boolean {
     return !this.even;
   }