Javascript: closure example

jsclosure.js

function example() {
  var o = {}, i = 0;
  for (i = 0; i < 3; i++) {
    o[i] = function() {
      console.log(i);
    };
  }
  o[0]();
  o[1]();
  o[2]();
}

example();

function example2() {
  var o = {}, i = 0;
  for (i = 0; i < 3; i++) {
    o[i] = (function(value) {
      return function() {
        console.log(value);
      }
    })(i);
  }
  o[0]();
  o[1]();
  o[2]();
}

example2();