Javascript拼接不起作用 [英] Javascript splice not working

问题描述

在我认为.splice()打算执行的操作上，我可能是错的，但我认为它删除了数组的一个元素.我在这里要做的只是删除豌豆"，但这是行不通的:

I may be wrong on what I think .splice() is meant to do, but I thought it removed one element of an array. All I want to do here is remove "pears", but it doesn't work:

var my_array = ["apples","pears","bananas","oranges"];

my_array.splice($.inArray("pears",my_array));

$.each(my_array, function(k,v) {
    document.write(v+"<br>");
});

也在 http://jsfiddle.net/jdb1991/nV95v/

推荐答案

您缺少两个参数:

• $.inArray 希望第二个参数为主题数组
• splice 接受第二个参数来指定要已删除

代码变为:

var my_array = ["apples","pears","bananas","oranges"];

my_array.splice($.inArray("pears", my_array), 1);

$.each(my_array, function(k,v) {
    document.write(v+"<br>");
});

在线示例

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