jQuery:将数组输入值转换为字符串优化 [英] JQuery: Turn array input values into a string optimization

问题描述

使用jQuery，我有以下代码:

using jQuery I have the following code:

var selectedIdsArray = $("#selectId option:selected").map(function(){return this.value;});
var selectedIdsStr = $.map(selectedIdsArray, function(val){ return "" + val + "";});

它成功检索了一个id字符串，例如. <select multiple='multiple'>元素中的selectedIdsStr ="2,45,245,1".我想知道是否有更有效的方法(更少的代码)来实现这一目标?

It successfully retrieves a string of ids eg. selectedIdsStr = "2,45,245,1" from an <select multiple='multiple'> element. I was wondering if there is a more efficient way (less code) to achieve this?

谢谢！

推荐答案

您可以像这样更改第二行:

You could change the second line like this:

var selectedIdsStr = selectedIdsArray.get().join(',');

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