选择TD的文本包含foo的任何TR

const tables = document.getElementsByTagName("table");
for (let i = 0; i< tables.length; i++) {
  const rows = tables[i].getElementsByTagName("tr");
  for (let j = 0; j< rows.length; j++) {
    const cells = rows[j].getElementsByTagName("td");
    for (let k = 0; k< cells.length; k++) {
      if (cells[k].innerHTML.includes("foo")) {
        console.log(`Found "foo" in row ${j + 1}, cell ${k + 1}`);
      }
    }
  }
}