Improved Acrolinx score

Author: seesharprun

articles/cosmos-db/sql/sql-query-index-of.md

@@ -5,50 +5,52 @@ author: ginamr
 ms.service: cosmos-db
 ms.subservice: cosmosdb-sql
 ms.topic: conceptual
-ms.date: 09/13/2019
+ms.date: 08/30/2022
 ms.author: girobins
 ms.custom: query-reference
 ---
+
 # INDEX_OF (Azure Cosmos DB)
+
 [!INCLUDE[appliesto-sql-api](../includes/appliesto-sql-api.md)]
 
- Returns the starting position of the first occurrence of the second string expression within the first specified string expression, or -1 if the string is not found.  
-  
+Returns the starting position of the first occurrence of the second string expression within the first specified string expression, or `-1` if the string isn't found.
+
 ## Syntax
-  
+
 ```sql
-INDEX_OF(<str_expr1>, <str_expr2> [, <numeric_expr>])  
-```  
-  
+INDEX_OF(<str_expr1>, <str_expr2> [, <numeric_expr>])
+```
+
 ## Arguments
-  
-*str_expr1*  
-   Is the string expression to be searched.  
-  
-*str_expr2*  
-   Is the string expression to search for.  
+
+*str_expr1*
+   Is the string expression to be searched.
+
+*str_expr2*
+   Is the string expression to search for.
 
 *numeric_expr*
-   Optional numeric expression that sets the position the search will start. The first position in *str_expr1* is 0. 
-  
+   Optional numeric expression that sets the position the search will start. The first position in *str_expr1* is 0.
+
 ## Return types
-  
-  Returns a numeric expression.  
-  
+
+Returns a numeric expression.
+
 ## Examples
-  
-  The following example returns the index of various substrings inside "abc".  
-  
+
+The following example returns the index of various substrings inside "abc".
+
 ```sql
-SELECT 
-    INDEX_OF("abc", "ab") AS index_of_prefix, 
-    INDEX_OF("abc", "b") AS index_of_middle, 
+SELECT
+    INDEX_OF("abc", "ab") AS index_of_prefix,
+    INDEX_OF("abc", "b") AS index_of_middle,
     INDEX_OF("abc", "c") AS index_of_last,
     INDEX_OF("abc", "d") AS index_of_missing
-```  
-  
- Here is the result set.  
-  
+```
+
+Here's the result set.
+
 ```json
 [
   {
@@ -57,8 +59,8 @@ SELECT
     "index_of_last": 2,
     "index_of_missing": -1
   }
-] 
-```  
+]
+```
 
 ## Next steps