小编A S*_*A S的帖子

let urlEncode = function(text) {
  text = text.trim();
  let newstring;
  for (let i = 0; i < text.length; i++) {
    if (text[i] == " ") {
      newstring[i] = "%20";
    } else {
      newstring[i] = text[i];
    }
  }
  return newstring;
};

console.log(urlEncode("blue is greener than purple for sure"));