counting-sheep.js

function countSheeps(arrayOfSheep) {
  return arrayOfSheep.filter(item => item === true).length
}
let sheeps = [true,  true,  true,  false,
  true,  true,  true,  true ,
  true,  false, true,  false,
  true,  false, false, true ,
  true,  true,  true,  true ,
  false, false, true,  true];


console.log(countSheeps(sheeps))