const names = ['Rena', 'Carmen', 'Julianne', 'William']

function getNames(names, targetName) {
  for (let i = 0; i < names.length; i++) {
    } 
  return targetName === names[i] ? true : false;
}

console.log(getNames(names, 'Rena'));
console.log(getNames(names, 'Carmen'));
console.log(getNames(names, 'Julianne'));
console.log(getNames(names, 'William'));