function ReverseWordsInString(s) {
let sb = [];
let arr = s.split(" ");
for (let i = arr.length - 1; i >= 0; i--) {
sb.push(arr[i]);
}
return sb.join(" ").trim();
}
let s = "node.js c php python c++";
s = ReverseWordsInString(s);
console.log(s);
/*
run:
c++ python php c node.js
*/