求助：Selenium中JavaScript函数出现无效令牌错误排查

在Selenium中运行JavaScript代码时，已确定报错根源是extractText函数，报错信息为：
JavascriptException: Message: javascript error: Invalid or unexpected token

尝试过以下两种函数写法，且使用代码验证工具、ChatGPT排查均未解决问题，请求帮忙排查语法错误：

第一种写法 #

function extractText(obj) {
  let result = "";
  for (const page of obj.pages) {
    for (const block of page.blocks) {
      for (const paragraph of block.paragraphs) {
        for (const word of paragraph.words) {
          for (const symbol of word.symbols) {
            result += symbol.text;
          }
        }
        result += "\n";
      }
      result += "\n";
    }
    result += "\n";
  }
  return result;
}

第二种写法 #

function extractText(obj) {
  let result = "";
  for (let i = 0; i < obj.pages.length; i++) {
    for (let j = 0; j < obj.pages[i].blocks.length; j++) {
      for (let k = 0; k < obj.pages[i].blocks[j].paragraphs.length; k++) {
        for (let l = 0; l < obj.pages[i].blocks[j].paragraphs[k].words.length; l++) {
          for (let m = 0; m < obj.pages[i].blocks[j].paragraphs[k].words[l].symbols.length; m++) {
            result += obj.pages[i].blocks[j].paragraphs[k].words[l].symbols[m].text;
          }
        }
        result += "\n";
      }
      result += "\n";
    }
    result += "\n";
  }
  return result;
}

内容的提问来源于stack exchange，提问作者rigiva