sebastiandelaroche

function decodeInt(text) {
  const index = text.indexOf("e");
  const integer = text.slice(1, index);
  return [index + 1, integer];
}

function decodeString(text) {
  const [textLength] = text.split(":");
  const length = Number(textLength);
  return [2 + length, text.slice(2, 2 + length)];