function-with-options-object-parameter.js

/*
 * Function with options object parameter
 * 
 * Dependencies
 * ------------
 * An extend helper function or the jquery extend method to merge the defaults
 * and options objects.
 * 
 * 1. Merge defaults and options objects into new settings object.
 * 2. Assign variables to settings properties.
 */
function functionWithOptionsParameter(options) {

  var defaults = {
    optionOne: true,
    optionTwo: 1000,
    optionThree: 'string'
  };

  var settings = extend({}, defaults, options); /* [1] */

  var optionOne = settings.optionOne,
      optionTwo = settings.optionTwo,
    optionThree = settings.optionThree; /* [2] */
}