How Do I Loop Through Ordered List Items And Update The Class Jquery

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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);

That is how i have created my array

Posted 6-Oct-15 23:51pm

isi19

Updated 6-Oct-15 23:54pm

v2

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Palash Mondal_ · Answer 1 · 2015-10-07T00:09:00

Solution 1

You can do this like

JavaScript

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

// Loop through the array
$.each(arr, function (i, val) {
    // Add class to the respective ids from array items
    $('#' + val).addClass('active');
});

Fiddle[^]

Posted 7-Oct-15 0:09am

Palash Mondal_

Updated 7-Oct-15 0:16am

v2

Krunal Rohit · Answer 2 · 2015-10-07T00:09:00

Solution 2

You mean this ?

JavaScript

for(var i=0; i<list.length;>{
    console.log(i +"\n---");
}

And you never get the index of the array, you the index of the item of the array.
var index = list.indexOf("2");
indexOf()[^]

-KR

Posted 7-Oct-15 0:09am

Krunal Rohit

Manas_Kumar · Answer 3 · 2015-10-07T00:20:00

Solution 3

Try like below:

JavaScript

var list = JSON.parse(localStorage.selectableList);
for (var i = 0; i < list.length; i++) {
	$('#' + list[i]).addClass('yourcssclass');
}

Posted 7-Oct-15 0:20am

Manas_Kumar