execjs

(function(program, runner) { runner(program); })(function(debug,describe,describeArray,print,printErr,quit,gc,fullGC,edenGC,forceGCSlowPaths,gcHeapSize,addressOf,version,run,runString,load,loadString,readFile,read,checkSyntax,sleepSeconds,jscStack,readline,preciseTime,neverInlineFunction,noInline,noDFG,noFTL,noOSRExitFuzzing,numberOfDFGCompiles,jscOptions,optimizeNextInvocation,reoptimizationRetryCount,transferArrayBuffer,failNextNewCodeBlock,DFGTrue,OSRExit,isFinalTier,predictInt32,isInt32,fiatInt52,effectful42,makeMasquerader,hasCustomProperties,createGlobalObject,dumpTypesForAllVariables,drainMicrotasks,getRandomSeed,setRandomSeed,isRope,callerSourceOrigin,is32BitPlatform,loadModule,checkModuleSyntax,platformSupportsSamplingProfiler,generateHeapSnapshot,resetSuperSamplerState,ensureArrayStorage,startSamplingProfiler,samplingProfilerStackTraces,maxArguments,asyncTestStart,asyncTestPassed,WebAssemblyMemoryMode,$,$262,waitForReport,heapCapacity,flashHeapAccess,disableRichSourceInfo,mallocInALoop) {
  return <%= source %>;
}, function(program, undefined) {
  var result;
  try {
    result = program();
    try {
      if (result === undefined) {
        print('["ok"]');
      } else {
        print(JSON.stringify(['ok', result]));
      }
    } catch (err) {
      print('["err"]');
    }
  } catch (err) {
    print(JSON.stringify(['err', '' + err, err.stack]));
  }
});