如何循环排序有序列表项并更新类Jquery [英] How Do I Loop Through Ordered List Items And Update The Class Jquery

问题描述

嗨


我创建了一个列表项id的数组，我想知道如何循环遍历数组并获取索引使用Jquery的数组，因为我只想更新数组列表中所选id的类

Hi
I have created an array of the id's of the list item and i would like to know how would i be able to loop through the array and get the index of the array using Jquery as i would like to only update the class of the selected ids which are in the array list

localStorage.selectableList = ["1", "2", "3", "4", "5", "6", "7", "8", "9"]"

var list = JSON.parse(localStorage.selectableList);

这就是我的方式创建了我的数组

That is how i have created my array

推荐答案

你可以这样做

You can do this like

// Your array of ids
var arr = ["1", "2", "3", "4", "5", "6", "7", "8", "9"]

// Loop through the array

.each （arr， function （i，val）{
// 从数组项添加类到相应的ID

.each(arr, function (i, val) { // Add class to the respective ids from array items

（' ＃' + val）.addClass（' active'）;
}）;

('#' + val).addClass('active'); });

小提琴 [ ^ ]

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