Fix Array.at documentation: change 'code unit' to 'item' (#64536)

Co-authored-by: iamawanishmaurya <iamawanishmaurya@users.noreply.github.com>

Author: iamawanishmaurya

tsc/internal/bundled/libs/lib.es2022.array.d.ts

@@ -17,103 +17,103 @@ and limitations under the License.
 interface Array<T> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): T | undefined;
 }
 
 interface ReadonlyArray<T> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): T | undefined;
 }
 
 interface Int8Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Uint8Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Uint8ClampedArray<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Int16Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Uint16Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Int32Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Uint32Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Float32Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface Float64Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): number | undefined;
 }
 
 interface BigInt64Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): bigint | undefined;
 }
 
 interface BigUint64Array<TArrayBuffer extends ArrayBufferLike> {
     /**
      * Returns the item located at the specified index.
-     * @param index The zero-based index of the desired code unit. A negative index will count back from the last item.
+     * @param index The zero-based index of the desired item. A negative index will count back from the last item.
      */
     at(index: number): bigint | undefined;
 }