Basic composition

//Composition builder wrapper
const Builder = (() => {
   compose = (obj, props) => {
      return Object.assign(obj, props)
   }
   return {
      compose: compose
   }
})();

//test object
let testObj = {};

//functionality as mixin
const mixin= {
   drive: () => {
      console.log('driving...')
   }
};

//building a new object with functionality
const driver = Builder.compose(testObj, mixin);

//drive the car
driver.drive(); //logs driving...