JQuery on change fired only after second change of select box

JQuery on change fired only after second change of select box

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JQuery on change fired only after second change of select box
Tag : javascript , By : Pip
Date : November 28 2020, 04:01 AM

To fix this issue You are adding the logic using on change, so the first time that will not yet be present.
You might just use the loop instead because that is already using the id's of the selects:
$(document).ready(function() {
  var slots = ['1', '2', '3', '4', '5', '6', '7', '8', '9'];
  $.each(slots, function(index, value) {
    $('#slot' + value).change(function() {
      if ($('#slot' + value).val() === 'NULL') {
        switch (value) {
          case '1':
            var v = 'Slot\n1';
          case '2':
            var v = 'Slot\n2';
            // ...
        $('td.slot' + value).text(v);
      } else {
        $('td.slot' + value).text('');
        $('td.slot' + value).prepend('<img src="https://img.icons8.com/material/24/000000/console.png" style="width: 100%; height: 100%; object-fit: contain"\>');
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <td class="slot1">Slot<br>1</td>
      <td class="slot2">Slot<br>2</td>
  <div class="selects">
    <label>Slot 1</label>
    <select id="slot1" name="slot1">
      <option value="NULL">---Select---</option>
      <option value="on">on</option>
    <label>Slot 2</label>
    <select id="slot2" name="slot2">
      <option value="NULL">---Select---</option>
      <option value="on">on</option>
    // ...

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jQuery select "change" event not fired

Tag : jquery , By : cnemelka
Date : March 29 2020, 07:55 AM
it fixes the issue Because the #second element just exists don't have to use the delegate and live functions
   return false; 

$('#second').live("change", function()   
   return false; 

jQuery change event fired twice when giving focus to another control inside the change callback

Tag : google-chrome , By : Willem van Schevikho
Date : March 29 2020, 07:55 AM
I hope this helps . The focus() on other control in your change eventhandler call the change event in chrome because it unfocus "blur" your current control if the value is different.
This bug is not new, you can take a look at this bug ticket on jQuery : http://bugs.jquery.com/ticket/9335

function changeHandler() {
    $(this).off('change').blur().on('change', changeHandler);

Backbone change event not fired for select field selected by jQuery

Tag : javascript , By : BinaryBoy
Date : March 29 2020, 07:55 AM
Does that help I have a button that when clicked sets the value of a select field and also have a change event for the select field. The 'change select[name=location_id]' event works when selecting normally via mouse/keyboard but clicking the button, which uses jQuery to change the select field value, doesn't fire off the 'change select[name=location_id]' event. , All you need is to add an event:

ajax 'change' is not fired when value 'select value is set from php

Tag : javascript , By : Chandra P Singh
Date : March 29 2020, 07:55 AM
I wish did fix the issue. I have a form with city, state and country. the upon selecting a city - I automatically populate the state and country via ajax from the a mysql database. , Try to replace your javascript code to:
 function profileLocationFunction() {
      var id = $(this).val();
      var dataString = id;
        type: "GET",
        url: "locationautocomplete.php",
        dataType: 'json',
        data: {
          datatext: dataString,
          type: 'cityselect'
        cache: false,
        success: function(data) {
        error: function(xhr, status, error) {
          alert("Hello! ERROR!" + error);


$(document).ready(function() {


Jquery change event not fired when using selected attribute on select item

Tag : javascript , By : qba73
Date : March 29 2020, 07:55 AM
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