update

Author: mumian

articles/azure-resource-manager/bicep/operators-access.md

@@ -71,15 +71,13 @@ Output from the example:
 
 ## Reverse index accessor
 
-Beginning with [Bicep CLI version 0.34.x](https://github.com/Azure/bicep/releases/tag/v0.34.1), the reverse index accessor operator (`^`) allows you to retrieve an element from an array or a character from a string by counting from the end. This one-based index means `^1` returns the last item, `^2` the second-to-last, and so on. The index must be a positive integer greater than zero and can be specified as a literal or an expression that evaluates to an integer.
+Beginning with [Bicep CLI version 0.34.x](https://github.com/Azure/bicep/releases/tag/v0.34.1), the reverse index accessor operator (`^`) allows you to retrieve an element from an array by counting from the end. This one-based index means `^1` returns the last item, `^2` the second-to-last, and so on. The index must be a positive integer greater than zero and can be specified as a literal or an expression that evaluates to an integer.
 
 `array[^index]`
 
-`string[^index]`
+If the index exceeds the length of the array, a compilation error occurs for static indices, or a runtime error occurs for dynamic indices.
 
-If the index exceeds the length of the array or string, a compilation error occurs for static indices, or a runtime error occurs for dynamic indices.
-
-For constant arrays or strings, the operator is evaluated at compile time. For dynamic inputs, such as [parameters](./parameters.md), evaluation occurs at deployment time.
+For constant arrays, the operator is evaluated at compile time. For dynamic inputs, such as [parameters](./parameters.md), evaluation occurs at deployment time.
 
 ### Example
 
@@ -100,17 +98,6 @@ Output from the example:
 | ---- | ---- | ---- |
 | secondToLast | string | 'orange' |
 
-```bicep
-var text = 'bicep'
-output secondToLastChar string = text[^2]
-```
-
-Output from the example:
-
-| Name | Type | Value |
-| ---- | ---- | ---- |
-| secondToLastChar | string | 'p' |
-
 ## Function accessor
 
 `resourceName.functionName()`