(JS) Return a string with the first letter of each word capitalized, with the rest of the other word in lower case

Here the code: function titleCase(str) { let lowArray = str.toLowerCase().split(" "); let outcome = lowArray.map(function(val){ return val.replace(val.charAt(0), val.charAt(0).toUpperCase()); }); return outcome.join(" "); } console.log(t...