HTMLScriptElement: text プロパティ

<script id="el" type="text/javascript">
  const num = 10;
  console.log(num);
</script>

const el = document.getElementById("el");
console.log(el.text); // 出力: "\n  const num = 10;\n  console.log(num);\n"
console.log(el.textContent); // 出力: "\n  const num = 10;\n  console.log(num);\n"
el.text = "console.log(10);";
console.log(el.text); // 出力: "console.log(10);"
console.log(el.textContent); // 出力: "console.log(10);"