Node.js interview question for process.nextTrick(fn);

gistfile1.txt

'use strict'

var c=0;

function fn() {
      if(c++<100000000) {
        console.log('done 2', c, process.memoryUsage().heapUsed)
           // return fn() // will crash
            return  process.nextTick(fn); //works
    }
      console.log('done');

}

fn()