html运行实例（eg_js_const_array_assign）-搜寻教程库

代码示例：（标识：eg_js_const_array_assign）

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript const</h2>

<p>您无法重新赋值常量数组：</p>

<p id="demo"></p>

<script>
try {
  const cars = ["Saab", "Volvo", "BMW"];
  cars = ["Toyota", "Volvo", "Audi"];
}
catch (err) {
  document.getElementById("demo").innerHTML = err;
}
</script>

</body>
</html>