javascript数组的splice()方法改变数组的内容,增加了新的元素,同时消除旧元素。
语法
array.splice(index, howmany, [element1][, ..., elementn]);
下面是参数的详细信息:
返回值:
返回基于传递的参数提取数组。
例子:
<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>
这将产生以下结果:
after adding 1: orange,mango,water,banana,sugar,tea removed is: after adding 1: orange,mango,water,sugar,tea removed is: banana
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