1. function dryRun(codeString, fallbackFunction) {
  2. try {
  3. // Execute the code string in a controlled environment.
  4. const result = eval(`(async () => { ${codeString} })();`);
  5. return result; // Return the result of the code execution.
  6. } catch (error) {
  7. // Handle errors during code execution.
  8. console.error("Code execution error:", error);
  9. if (fallbackFunction && typeof fallbackFunction === 'function') {
  10. // Execute the fallback function if available.
  11. return fallbackFunction();
  12. } else {
  13. return null; // Or any other appropriate default value.
  14. }
  15. }
  16. }
  18. // Example usage:
  19. // const myCode = "console.log('This is a dry run string'); return 42;";
  20. // const myFallback = () => { console.log("Fallback executed!"); return "Fallback result"; };
  22. // const result = dryRun(myCode, myFallback);
  23. // console.log("Result:", result);

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