Create literal vs use static

gistfile1.js

var Benchmark = require('benchmark');
var suite = new Benchmark.Suite;



var obj = {
  yeah: 'yeah',
  ohh: 'ohh'
};
var arr = [
  'yeah',
  'ohh'
];



suite.add('Object Literal', function() {
  var o = {
    yeah: 'yeah',
    ohh: 'ohh'
  };
  o.yeah;

}).add('Object Static', function() {
  var o = obj;
  o.yeah;

}).add('Array Literal', function() {
  var a = [
    'yeah',
    'ohh'
  ];
  a[1];

}).add('Array Static', function() {
  var a = arr;
  a[1];

})



.on('cycle', function(event) {
  console.log(event.target.toString());
}).on('complete', function() {
  console.log('----Fastest is ' + this.filter('fastest').pluck('name'));
}).run({ 'async': true });

$ node literal.js 
Object Literal x 154,344,750 ops/sec ±8.88% (72 runs sampled)
Object Static x 78,987,605 ops/sec ±1.19% (89 runs sampled)
Array Literal x 152,237,669 ops/sec ±9.32% (71 runs sampled)
Array Static x 74,883,876 ops/sec ±0.83% (91 runs sampled)
----Fastest is Object Literal

$ node -v
v0.8.14
$ uname -a
Darwin soichi-macminit.local 12.2.1 Darwin Kernel Version 12.2.1: Thu Oct 18 12:13:47 PDT 2012; root:xnu-2050.20.9~1/RELEASE_X86_64 x86_64

Mac OSX 10.0.2, 2.3GHz Intel Core i7, 4GB 1600 MHz DDR 3