A simple boilerplate for UMD JS modules

module-template.js

/**
 * MyModule 0.0.1
 * A short description of your module
 * @author Me (@me)
 * @license MIT
 */

 ;( function( root, factory ) {
  if ( typeof define === 'function' && define.amd ) {
    define( factory );
  } else if ( typeof exports === 'object' ) {
    module.exports = factory;
  } else {
    root.myModule = factory( root );
  }
})( this, function( root ) {

  'use strict';

  // Public API function
  var exports = function( element, settings ) {

    // Parameter variables
    var
      selector = document.querySelector( element ),
      defaults = {
        numberVariable: 123,
        stringVariable: 'abcd'
      };

    // Only run if selector exists
    if ( !selector ) return false;

    // Scoped variables
    var
      options = compose.extend( defaults, settings ),
      optVar  = options.option;

    // Plugin logic...

  };

  // Public API
  return exports;

});

// Instantiate
myModule( 'element', {
  numberVariable: 456,
  stringVariable: 'efg'
});