Classify vs Closures

classify_version.js

Causes.SomeClass = Causes.classify({
  init : function() {
    this.value = 0;
    $('#something').on('click', this.handlerFunc.bind(this));
  },

  handlerFunc : function(event) {
    event.preventDefault();
    this.value += 5;
  },

  // public methods mixed with private ones
  incrementValue : function() {
    this.value += 1;
  },

  getValue : function() {
    return this.value;
  }
});

closure_version.js

Causes.SomeClass = function() {
  var value = 0;
  $('#something').on('click', handlerFunc);

  function handlerFunc(event) {
    event.preventDefault();
    value += 5;
  }

  // public methods are distinct
  return {
    incrementValue : function() {
      value += 1;
    },

    getValue : function() {
      return value;
    }
  }
});