high order functions.js

const animals = [
  {name: 'Fluffy', species: 'rabbit'},
  {name: 'Caro', species: 'dog'},
  {name: 'Hamilton', species: 'dog'},
  {name: 'Harold', species: 'fish'},
  {name: 'Ursula', species: 'cat'},
  {name: 'Jimmy', species: 'cat'},
  {name: 'Fluffy', species: 'dog'},
]

const filterBySpecie = (specie) => {
  return (animal) => {
    return animal.species === specie
  }
}

const isDog = filterBySpecie('dog')
const isCat = filterBySpecie('cat')
const isRabbit = filterBySpecie('rabbit')

const dogs = animals.filter(isDog)
const rabbits = animals.filter(isCat)
const cats = animals.filter(isRabbit)

dogs
rabbits
cats

// let dogs = []

// for(let i=0; animals.length > i; i++) {
//   if(animals[i].species === 'dog') {
//     dogs.push(animals[i])
//   }
// }

// dogs