Switch an old script from Rhino to the V8 runtime

📰 Dev.to · bulldo.gs

Learn to migrate Google Apps Script projects from Rhino to V8 runtime by updating syntax and configuration

intermediate Published 13 Jun 2026
Action Steps
  1. Update the appsscript.json file to enable V8 runtime by adding the necessary line
  2. Identify and replace Rhino-only syntax in the project code
  3. Test each function and trigger to ensure they work as expected with V8
  4. Use the V8 runtime documentation to resolve any compatibility issues that arise
  5. Refactor code to take advantage of V8's improved performance and features
Who Needs to Know This

Developers and script maintainers who need to update existing Google Apps Script projects to work with the V8 runtime will benefit from this knowledge, as it enables them to take advantage of improved performance and new features

Key Insight

💡 Enabling V8 runtime in Google Apps Script requires careful syntax updates to avoid breaking existing functions and triggers

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🚀 Migrate your Google Apps Script from Rhino to V8 runtime and boost performance! 💻

Key Takeaways

Learn to migrate Google Apps Script projects from Rhino to V8 runtime by updating syntax and configuration

Full Article

One line in appsscript.json enables V8, but any Rhino-only syntax anywhere in the project kills every function and trigger. Here is how to migrate saf
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