javaScript заработает первую букву
const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);
Helpless Horse
const lower = 'this is an entirely lowercase string';
const upper = lower.charAt(0).toUpperCase() + lower.substring(1);
for(var i = 1 ; i < newArr.length ; i++){
newArr[i].charAt(0).toUpperCase();