Object vs. function singleton

modified.js

var loader = (function() {
  var index = 0
    , timeout = null
    , symbols = ['└', '├', '┌', '┬', '┐', '┤', '┘', '┴'];

  function show () {
    console.log(symbols[index]);
    index = (index + 1) % symbols.length;
    timeout = setTimeout(show, 200);
  }

  function hide() {
    clearTimeout(timeout);
  }

  return {show: show, hide: hide};
})();

// Testing
loader.show();
setTimeout(loader.hide, 5000);

original.js

// From http://pastebin.com/tmZiMhCp
var loader = {
	_index: 0,
	_timeout: null,
	_symbols: ['└', '├', '┌', '┬', '┐', '┤', '┘', '┴'],
	show: function() {
		var that = this;
		console.log(this._symbols[this._index]);
		this._index = this._index == this._symbols.length - 1 ? 0 : this._index + 1;
		this._timeout = setTimeout(function() { that.show() }, 200);
	},
	hide: function() {
		clearTimeout(this._timeout);
	}
};

// Testing
loader.show();
setTimeout(function() { loader.hide(); }, 5000);