script.js

const c = new Compartment({ console, Math: { log2: Math.log2 });

c.evaluate(
 `   
   console.log('---------------')
   console.group('---- inside compartment ----')
   console.log('---------------')
   
   const num = 10;

   console.log('num', num);
   console.log('---------------')
   const result = Math.log2(num);
   console.log('result', num);
   console.groupEnd();
   return { result }
 `
)