title: How to use Arrow function for returning anonymous function
body: <p>I have following code in ECMA5 and I'm trying to replace anonymous function to arrow function.
  How can I achieve this? Can I replace both or one or none function with Arrow function?</p>
  
  <pre><code>var counterSetup = function () {
        var counter = 0;
        return function () {
          counter += 1;
          console.log('Increment counter value : ' + counter);
          return counter;
       };
  };
  var counter = counterSetup();
  counter();
  </code></pre>