update js docs

Author: milaGGL

handwritten/firestore/dev/src/pipelines/expression.ts

@@ -652,7 +652,7 @@ export abstract class Expression
    * @example
    * ```typescript
    * // Filter "scores" to include only values greater than 50
-   * field("scores").arrayFilter("score", variable("score").greaterThan(50));
+   * field("scores").arrayFilter("score", greaterThan(variable("score"), 50));
    * ```
    *
    * @param alias The variable name to use for each element.
@@ -705,7 +705,7 @@ export abstract class Expression
    * @param elementAlias The variable name to use for each element.
    * @param indexAlias The variable name to use for the current index.
    * @param transform The lambda expression used to transform the elements.
-   * @returns A new `Expression` representing the arrayTransform operation.
+   * @returns A new `Expression` representing the arrayTransformWithIndex operation.
    */
   arrayTransformWithIndex(
     elementAlias: string,