JavaScript数组splice()方法详解与示例

参数详细说明

array.splice(index, howMany, [element1][, ..., elementN]);

<html>
<head>
<title>JavaScript Array splice Method</title>
</head>
<body>
<script type="text/javascript">
var arr = ["orange", "mango", "banana", "sugar", "tea"];

var removed = arr.splice(2, 0, "water");
document.write("After adding 1: " + arr );
document.write("<br />removed is: " + removed);

removed = arr.splice(3, 1);
document.write("<br />After adding 1: " + arr );
document.write("<br />removed is: " + removed);

</script>
</body>
</html>

After adding 1: orange,mango,water,banana,sugar,tea
removed is: 
After adding 1: orange,mango,water,sugar,tea
removed is: banana