code: function getVhash() {
    const type = NodeType.VhashType;
    const token = tokens[pos];
    const line = token.ln;
    const column = token.col;
  
    // Skip `#`.
    pos++;
  
    const content = getNmName2();
    const end = getLastPosition(content, line, column + 1);
    return newNode(type, content, line, column, end);
  }
docs: Get node with a hexadecimal number (e.g. `#fff`) inside some value
  @return {Array} `['vhash', x]` where `x` is a hexadecimal number
  converted to string (without `#`, e.g. `'fff'`).