How to print error from application into docker quickstart terminal window


I am trying to run application in docker. But I am unable to access the application button click functionality. I want to know the errors in the docker quick start terminal window. What is the command or property to print server and controller side errors… for example( console.log(‘error’):wink: like that which should I use?

If I print the error or any value into docker quickstart terminal window I can rectify my error? Is it possible in docker quick start window