代码示例:(标识:eg_js_const_array)
<!DOCTYPE html>
<html>
<body>

<h2>JavaScript const</h2>

<p>声明常量数组不会使元素不可更改:</p>

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

<script>
// 创建数组:
const cars = ["Audi", "BMW", "Porsche"];

// 更改元素:
cars[0] = "Toyota";

// 添加元素:
cars.push("Honda");

// 显示数组:
document.getElementById("demo").innerHTML = cars; 
</script>

</body>
</html>
运行结果: