How to get data attribute from option in multiple select?

Question

How can I get list of selected values from multiple select? I can get value only( I need to get attr values ('data-name')

https://playcode.io/301780?tabs=console&index.html&output

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select name="payment" style="width: 246px;" required multiple="multiple" class="select2" id="id_payment"> <option value="3" data-name="blago">blago</option> <option value="4" data-name="usd" selected>usd</option> <option value="5" data-name="uah" selected>uah</option> <option value="2" data-name="btc">btc</option> </select> <script> $(document).ready(function() { var vals = $('#id_payment').val() var paymentList = [] if (vals) { for (var i = 0; i < vals.length; i++) { console.log(vals[i]) paymentList.push($(vals[i]).selector) } } }) </script> 

Answer 1

You can use map to loop thru the selected options and use data to get the data-name values.

 var result = $("#id_payment option:selected").map(function() { return $(this).data("name"); }).get(); console.log(result); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select name="payment" style="width: 246px;" required multiple="multiple" class="select2" id="id_payment"> <option value="3" data-name="blago">blago</option> <option value="4" data-name="usd" selected>usd</option> <option value="5" data-name="uah" selected>uah</option> <option value="2" data-name="btc">btc</option> </select> 

Answer 2

Use each to traverse the items and collect them into an array, like:

var dataNames = [];
$("#id_payment > option[selected]").each(function() {
    dataNames.push($(this).data("name"));
});

Answer 3

You can use this code

$("#id_payment option:selected").each(function(index, item){

         let name = $(item).data('name');
         //alert(name)
         nameselected.push(name);
         console.log(name);
   })

 $(document).ready(function () { var vals = $('#id_payment').val() var paymentList = [] var nameselected = [] if (vals) { for (var i = 0; i < vals.length; i++) { console.log(vals[i]) paymentList.push($(vals[i]).selector) } } $("#id_payment option:selected").each(function(index, item){ let name = $(item).data('name'); //alert(name) nameselected.push(name); console.log(name); }) }) 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select name="payment" style="width: 246px;" required multiple="multiple" class="select2" id="id_payment"> <option value="3" data-name="blago">blago</option> <option value="4" data-name="usd" selected>usd</option> <option value="5" data-name="uah" selected>uah</option> <option value="2" data-name="btc">btc</option> </select> 

Answer 4

You need to use jquery .each() function.

Example:

 <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <select name="payment" style="width: 246px;" required multiple="multiple" class="select2" id="id_payment"> <option value="3" data-name="blago">blago</option> <option value="4" data-name="usd" selected>usd</option> <option value="5" data-name="uah" selected>uah</option> <option value="2" data-name="btc">btc</option> </select> <script> $(document).ready(function() { $('#id_payment :selected').each(function() { console.log($(this).data("name")) }) $("#id_payment").click(function(){ $('#id_payment :selected').each(function() { console.log($(this).data("name")) }) }) }) </script> 

It is set up so when you make more selections, it still logs all of the selected items