domain1.js

var fs = require('fs');
process.on('uncaughtException', function(e){
  console.log('uncaughtException:', e.message);
});
try{
  fs.readFile('non-exists.txt', 'utf-8', function(err, data){
    if(err) throw err;
    console.log('data:', data);
  });
}catch(e){
  console.log('catch:', e.message);
}