A simple associative table for JavaScript

Table.js

// Table - A simple associative table for JavaScript
//   methods:
//   - size:integer - number of members in the table
//   - keys:Array - the keys used to look up values in the Table
//   - values:Array - the values in the table in a numbered array
//   TODO:
//   - add slicing
//   - add delete-by-key
function Table() {
  var t = Object.create(Table.methods)
  return t
}
Table.methods = {
  size: function() {
    var quid = this
    //Logger.log("Called Table.size")
    var size = 0;
    for (var key in quid) 
    {
      //Logger.log("Table.size: For property '%s' hasOwnProperty is '%s'", key, quid.hasOwnProperty(key));
      if (quid.hasOwnProperty(key)) size++;
    }
    return size;
  }, // end size
  keys: function() {
    var quid = this
    //Logger.log("Called Table.keys")
    var result = []
    for (var key in quid) 
    {
      //Logger.log("Table.keys: For property '%s' hasOwnProperty is '%s'", key, quid.hasOwnProperty(key));
      if (quid.hasOwnProperty(key) && key != 0) {
        //Logger.log("Table.keys: result.push('%s')",key)
        result.push(key);
      }
    }
    return result;
  }, // end keys
  values: function() {
    var quid = this
    //Logger.log("Called Table.values")
    var result = []
    for (var key in quid) 
    {
      //Logger.log("Table.values: For property '%s' hasOwnProperty is '%s'", key, quid.hasOwnProperty(key));
      if (quid.hasOwnProperty(key) && key != 0) {
        //Logger.log("Table.values: result.push('this[%s]')",key)
        result.push(this[key]);
      }
    }
    return result;
  }, // end values
} // end Table.methods

//*
function tableTester() {
  var atable = new Table()
  atable["foo"] = "bar"
  atable["baz"] = "xyzzy"
  Logger.log("Size of atable is %d", atable.size())
  var somekeys = atable.keys()
  Logger.log("Length of somekeys of atable is %d", somekeys.length)
  Logger.log("First key of atable is %s", somekeys[0])
  Logger.log("atable[First key of atable] is %s", atable[somekeys[0]])
  Logger.log("First value of atable.values() is %s", atable.values()[0])
}
// */