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>

why not just set name as value?

apple apple
– apple apple

2019-04-27 14:09:22 +00:00
Commented Apr 27, 2019 at 14:09 — apple apple
– apple apple, Commented Apr 27, 2019 at 14:09

Eddie · Accepted Answer · 2019-04-27 14:20:46Z

2

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>

answered Apr 27, 2019 at 14:20

Eddie

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Comments

Lajos Arpad · Accepted Answer · 2019-04-27 14:10:02Z

0

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"));
});

answered Apr 27, 2019 at 14:10

Lajos Arpad

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Comments

Hien Nguyen · Accepted Answer · 2019-04-27 14:12:04Z

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>

sassy_rog · Accepted Answer · 2019-04-27 14:21:30Z

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

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