// Write a recursive function called capitalizeWords. Given an array of words, return a new array containing each word capitalized.

function capitalizeWords (array) {
if (array.length === 1) {
return [array[0].toUpperCase()];
}
let res = capitalizeWords(array.slice(0, -1));
res.push(array.slice(array.length-1)[0].toUpperCase());
return res;

}