I want no commas to appear when this code comes out, what do I do?

Question

n=prompt("Put something")
function validate(n){
return n.match(/[aeiou]/gi)
}
console.log(validate(n))

Answer 1

"".match returns an array. Use [].join method.
Also notice the match returns null when a match is not found. You should check for null to prevent errors. And remember to always use var/let/const when declaring variables!

var val = validate(n);
if(val === null){
console.log("Vowel not found");
}else{
console.log(val.join(" "));
}