Magento 2 mixins (extend/override for UIComponents)

m2-mixin-uicomponent.js

/*
 * Magento 2 mixins for js files that return an UIComponent
 * (based on https://alanstorm.com/the-curious-case-of-magento-2-mixins/)
 * (for files that return an object literal: https://gist.github.com/alecarg/71a28b6d0ce2c3b7073481cc52fe1e23) 
 * (for files that return a function: )
 */

define([
], function () {
    'use strict';

    return function(targetModule){
        
        /*
         *  Extend
         */
        return targetModule.extend({
            someMethod: function(){
                // do something before
                var result = this._super(); // call original method (if needed)
                // do something after
                return result;
            }
        });
        
        /*
         *  Override
         */
        return targetModule.extend({
            someOtherMethod: function(){
                /* copy code from someOtherFn here if needed or write your own; also attempt to
                return in line with what the original fn returned to avoid breaking anything */
            }
        });
        
        return targetModule;
    };
});