Learn ES6 /Variables and Parameters

es6.1.js

console.clear();
///////////////////////
// Destructure
//
console.log('///////////////////////\n// Destructure\n///////////////////////');
{
  let doWork = ()=> {
    return {
      firstName: 'Bernardo',
      lastName: 'Bechtold',
      handles: {
        twitter: 'Berhell'
      }
    }
  }
    
    let {
      firstName: first,
      lastName: last,
      handles: {twitter: twitterAccount}
    } = doWork();
      
     console.log(first);
     console.log(last);
     console.log(twitterAccount);
}

///////////////////////
// Default Parameter
//
console.log('///////////////////////\n// Default Parameter\n///////////////////////');
{
  let doWork = (url, {data = 'data', cache = 'cache'}) => {
    return {
      data: data,
      cache: cache
    }
  }
    
  let {
      data,
      cache
   } = doWork('api/test', {});
      
     console.log(data);
     console.log(cache);
}