Configuration of your JavaScript component

gistfile1.js

Namespace.ModuleName = function (opt) {

  // default configuration values
  var defaults = {
  	moduleContextSelector: '.select-an-awesome > .module',
		moduleTitle: 'Some Arbitrary Title',
		moduleTimeoutSpeed: 3000
	}
  
  // local config values
  var config = {};
  
  // overwrite defaults with values in opt
  if (typeof opt !== 'object') opt = {};
  for (var k as v in defaults) {
    if (typeof config[k] !== 'undefined') 
      opt[k] = config[k];
      else opt[k] = defaults[k];
  }

  // return your thing
  return ({
    /* export functionality here
    use scoped config.moduleContextSelector etc
    */
  });

}

// create an instance
var instance = Namespace.Modulename({ moduleTitle: 'another title'});