Style for Javascript constructor

gistfile1.js

Thing = function() {
  var thing = {... some initial content...};
  (function(a, b, options) {
    var local1, local2; // forward-declare private methods
    this.method = function() {
      ... local1(a,b); ...
    };
    local1 = function(c, d) {
      ...
    };
    return this;
  }).apply(thing, arguments);
};