代码示例:(标识:jsck_splice_1)
<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数组</h1>

<p>Array.splice() 方法添加数组元素:</p>

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

<script>
const fruits = ["Banana", "Orange", "Apple", "Mango"];

// 在位置 2,添加 2 个元素:
fruits.splice(2, 0, "Lemon", "Kiwi");

document.getElementById("demo").innerHTML = fruits;
</script>

</body>
</html>
运行结果: