perf(getKeys): avoid duplicate iteration

[GalacticHypernova]

🔗 Linked issue

❓ Type of change

• 📖 Documentation (updates to the documentation, readme, or JSdoc annotations)
• 🐞 Bug fix (a non-breaking change that fixes an issue)
• 👌 Enhancement (improving an existing functionality like performance)
• ✨ New feature (a non-breaking change that adds functionality)
• 🧹 Chore (updates to the build process or auxiliary tools and libraries)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)

📚 Description

We can avoid a duplicate filter operation if we use a traditional for of loop.

📝 Checklist

• I have linked an issue or discussion.
• I have updated the documentation accordingly.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 66.37%. Comparing base (4d61c78) to head (16dcb25).
Report is 34 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #386      +/-   ##
==========================================
+ Coverage   65.05%   66.37%   +1.31%     
==========================================
  Files          39       39              
  Lines        4055     4074      +19     
  Branches      487      509      +22     
==========================================
+ Hits         2638     2704      +66     
+ Misses       1408     1361      -47     
  Partials        9        9              

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