function_parameter_destructuring.js

var pokemon = {
 id: 25,
 name: 'Pikachu',
 type: ['electric'],
 ability: {
 primary: 'Static',
 hidden: 'Lightning Rod'
 },
 moves: ['Quick Attack', 'Thunderbolt', 'Iron Tail', 'Volt Tackle'],
 competative: [
  { weakness: ['Ground'] },
  { resistance: ['Flying', 'Steel', 'Electric'] }
 ]
 };
var returnMoves = function({moves}){
 return moves;
}
var returnAbilities = function({ability}){
 return ability;
}
console.log(returnMoves(pokemon));
// ["Quick Attack", "Thunderbolt", "Iron Tail", "Volt Tackle"]
console.log(returnAbilities(pokemon));
// { hidden: "Lightning Rod", primary: "Static" }