capitalize algorithm
function capitalize1(str) {
const arrOfWords = str.split(" ");
const arrOfWordsCased = [];
for (let i = 0; i < arrOfWords.length; i++) {
const word = arrOfWords[i];
arrOfWordsCased.push(word[0].toUpperCase() + word.slice(1).toLowerCase());
}
return arrOfWordsCased.join(" ");
}