Re: [PR] fix (pie chart) fixes pie chart other click error [superset]

[via GitHub]

korbit-ai[bot] commented on code in PR #35086:
URL: https://github.com/apache/superset/pull/35086#discussion_r2336369233


##########
superset-frontend/plugins/plugin-chart-echarts/src/utils/eventHandlers.ts:
##########
@@ -54,7 +54,9 @@ const getCrossFilterDataMask =
       values = [value];
     }
 
-    const groupbyValues = values.map(value => labelMap[value]);
+    const groupbyValues = values
+      .map(value => labelMap[value])
+      .filter(Boolean) as string[][];

Review Comment:
   ### Unsafe type assertion after filtering <sub>![category 
Functionality](https://img.shields.io/badge/Functionality-0284c7)</sub>
   
   <details>
     <summary>Tell me more</summary>
   
   ###### What is the issue?
   The type assertion 'as string[][]' after filter(Boolean) may lead to runtime 
errors if labelMap contains non-string values.
   
   
   ###### Why this matters
   If labelMap contains values that are truthy but not string arrays (like 
numbers or objects), the type assertion will not prevent runtime errors when 
the values are used.
   
   ###### Suggested change ∙ *Feature Preview*
   Replace with a more specific type guard to ensure array elements are string 
arrays:
   ```typescript
   const groupbyValues = values
     .map(value => labelMap[value])
     .filter((value): value is string[] => 
       Array.isArray(value) && value.every(item => typeof item === 'string')
     );
   ```
   
   
   ###### Provide feedback to improve future suggestions
   [![Nice 
Catch](https://img.shields.io/badge/👍%20Nice%20Catch-71BC78)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/eaa85304-ad88-487c-8718-94d5bae9b035/upvote)
 
[![Incorrect](https://img.shields.io/badge/👎%20Incorrect-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/eaa85304-ad88-487c-8718-94d5bae9b035?what_not_true=true)
  [![Not in 
Scope](https://img.shields.io/badge/👎%20Out%20of%20PR%20scope-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/eaa85304-ad88-487c-8718-94d5bae9b035?what_out_of_scope=true)
 [![Not in coding 
standard](https://img.shields.io/badge/👎%20Not%20in%20our%20standards-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/eaa85304-ad88-487c-8718-94d5bae9b035?what_not_in_standard=true)
 
[![Other](https://img.shields.io/badge/👎%20Other-white)](https://app.korbit.ai/feedback/aa91ff46-6083-4491-9416-b83dd1994b51/eaa85304-ad88-487c-8718-94d5bae9b035)
   </details>
   
   <sub>
   
   💬 Looking for more details? Reply to this comment to chat with Korbit.
   </sub>
   
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