Develop Reference

jQuery interact with appended data

Can anyone point out what I'm doing wrong here? I'm trying to interact with data (appended using ajax)
The alerts fire if the element is already in DOM, but not when It's appended.
Am I using the ".on" wrong?
$(function() {
$('.card').on('click','.add-exercise', function() {
alert('clicked');
});
// Detect 'enter' key up
$('#search').on('keyup', function(e){
if(e.keyCode == 13)
{
console.log('hit enter key');
$(this).trigger("enterKey");
}
});
$('#search').on("enterKey",function(e){
$.ajax({
url: '{{ url("exercises/load") }}',
method: "POST",
data: {
_token: "{{csrf_token()}}",
search: $('#search').val(),
},
dataType: "text",
success: function(data) {
console.log(data);
$('.exercise-result').remove();
$('.card-deck').append(data);
}
});
});
});

I guess you have other .card elements in data.
You have to assign the event click again for them. The event is currently only assigned to your first .card elements. This is why it doesn't fire on your new .card elements.

I believe you need to add the event again each time the append is done. Try this and let me know if it works:
function addEvent() {
$('.card').on('click','.add-exercise', function() {
alert('clicked');
});
}
$(function() {
addEvent();
// Detect 'enter' key up
$('#search').on('keyup', function(e){
if(e.keyCode == 13)
{
console.log('hit enter key');
$(this).trigger("enterKey");
}
});
$('#search').on("enterKey",function(e){
$.ajax({
url: '{{ url("exercises/load") }}',
method: "POST",
data: {
_token: "{{csrf_token()}}",
search: $('#search').val(),
},
dataType: "text",
success: function(data) {
console.log(data);
$('.exercise-result').remove();
$('.card-deck').append(data);
addEvent();
}
});
});
});

I think the .card element is also loading dynamically, in order to make event delegation works properly you need to bind it to an element which is present at the time of page load.
So either you can attach it to the document object.
$(document).on('click','.card .add-exercise', function(){
// rest of your code
});
or better approach would be, attach to an element which is present at the time of page load(I guess .card-deck is present at the time of page load since you are appending data to that or attach to body tag).
$('.card-deck').on('click','.card .add-exercise', function(){
// rest of your code
});

Search on keyup and document ready using Ajax

I am trying to make search function based on Ajax/Jquery.
My web app shows the data of service requests from the database. I want to make searchbar for my app as follows:
show all service request on the table initially.
If something is typed on the searchbar, it searches data and load those data to the table.
Finally if user deletes anyword from searchbar it will show all data as stated on No.1
I managed doing second and third function but I am having issues with the first one.
$(document).ready(function(){
$('#search_text').keyup(function(){
var txt = $(this).val();
if(txt != '') {
$.ajax({
url:"ajax/fetchRequests.php",
method:"post",
data:{search:txt},
dataType:"text",
success:function(data) {
$('#result').html(data);
}
});
}
else if(txt == '') {
$.get("ajax/readRequests.php", {}, function (data, status) {
$("#result").html(data);
});
}
});
});
Here is another script that i have worked on trying:
$(document).ready(function(){
var txt = $('#search_text').val();
if(txt != ''){
$.ajax({
url:"ajax/fetchRequests.php",
method:"post",
data:{search:txt},
dataType:"text",
success:function(data) {
$('#result').html(data);
}
});
}
else if(txt == '') {
$.get("ajax/readRequests.php", {}, function (data, status) {
$("#result").html(data);
});
}
});
All my features are working except for the search functions. Any tips or critics are welcome, thank you very much in advance.

I suggest you do two things, 1) use the suggested .on() and 2) use only one ajax function to simplify things. The idea is to funnel your calls through one function so that you know if something fails, it's not because you messed up the ajax part of the script:
// Create a generic ajax function so you can easily re-use it
function fetchResults($,path,method,data,func)
{
$.ajax({
url: path,
type: method,
data: data,
success:function(response) {
func(response);
}
});
}
// Create a simple function to return your proper path
function getDefaultPath(type)
{
return 'ajax/'+type+'Requests.php';
}
$(document).ready(function(){
// When the document is ready, run the read ajax
fetchResults($, getDefaultPath('read'), 'post', false, function(response) {
$('#result').html(response);
});
// On keyup
$(this).on('keyup','#search_text',function(){
// Get the value either way
var getText = $(this).val();
// If empty, use "read" else use "fetch"
var setPath = (!getText)? 'read' : 'fetch';
// Choose method, though I think post would be better to use in both instances...
var type = (!getText)? 'post' : 'get';
// Run the keyup function, this time with dynamic arguments
fetchResults($, getDefaultPath(setPath), type, { search: getText },function(response) {
$('#result').html(response);
});
});
});

To get initial results hook onto jQuery's document ready event.
var xhr;
var searchTypingTimer;
$(document).ready(function(){
// initial load of results
fetchResults([put your own params here]);
// apply on change event
$('#search_text').on('input', function() {
clearTimeout(typingTimer);
searchTypingTimer = setTimeout(fetchResults, 300);
});
});
function fetchResults($,path,method,data,func)
{
if (xhr && xhr.readyState != 4){
xhr.abort();
}
xhr = $.ajax({
url: path,
type: method,
data: data,
success:function(response) {
func(response);
}
});
}
As Rasclatt mentions you should use jQuery's on method to catch any changes.
Secondly I'd recommend disposing of previous requests when you make new ones, since if you are sending a new one on each character change then for one word many requests will be made. They won't necessarily arrive back in the order you send them. So for example as you type 'search term', the result for 'search ter' may arrive after and replace 'search term'. (welcome to async).
Thirdly since you will send many requests in quick succession I'd only call your fetchResults function after a short time out, so for example if a user types a five character word it doesn't fire until 300ms after the last character is typed. This will prevent 4 unnecessary requests that would just be ignored but put strain on your backend.

Jquery Function running multiple times

I am using two scripts on my page and there is a general click function which records the number of clicks one user is making. So when I click on any element in the document, the click function should run after which other functions on the same element runs. But in my case, the click function runs multiple times before passing the control to the other function.
/************ 1st Jquery Script ***************/
function($) {
$(function(e) {
$('.signupCustom').click(function(){
var email = $('#form-email').val()
var password = $('#pass').val()
var firstName= $('#form-first-name').val()
var lastName= $('#form-last-name').val()
var number= $('#form-mobile').val()
var type=$('#sel1').val()
$.ajax({
url: '/login',
type: 'GET',
data: {
'email': email,
'password':password,
'firstName':firstName,
'lastName':lastName,
'number':number,
'type':type
},
success: function(data){
if ($('#sel1').val() == "Travel-Agent"){
window.location.href = "/agentVerification.html"
}
else{
window.location.href = "/dashboardTraveller"
}
}
})
})
$('.login').click(function(){
var email = $('#form-username').val()
var password= $('#form-password').val()
$.ajax({
url: '/loginCustom',
type: 'GET',
data: {
'email': email,
'password':password
},
success: function(data){
window.location.href = data['url']
}
})
})
$('.destinationsButton').click(function(){
var url="/destinations";
window.location=url;
})
}); })(jQuery);
I have attached the link to the html page which contains the second script.
Link to Page
If you go to this link, there is an image:
When I click on Login button, the click function runs multiple times before control goes to other function. I want the click function to run single time and then control should go to other function.
I tried e.stopPropagation but in case of a popup on same page, the popup does not open. Here on clicking on login, popup comes.

Is there any reason you are using the below?
jQuery('*').on("click",function(e){});
I think this might work better
jQuery('body').on("click",function(e){});
good luck

I don't know where you're stuck but you may use one to run the click function just once:
$(selector).one('click',function(){
//code runs only one click
});

Inserting and button disable putting all together

i have nested records of a table that i insert to a different table of a database with ajax, when i click on a particular button the value changes to data sent and so forth for the descending buttons. i perform this with two scripts that works perfectly, one insert data without refreshing and the other disables the particular button on click and changes the value to data sent. Now i want to put it all together so it becomes one.
Insertion
$(document).ready(function(){
$("form").on('submit',function(event){
event.preventDefault();
data = $(this).serialize();
$.ajax({
type: "POST",
url: "calls/insert_fryd.asp",
data: data
}).success(function() {
Disable button
$(function(){
$(".btn-style").click(function(){
$(this).val('data sent');
$(this).attr('disabled', true);
});
});

$(function(){}); is just a shortcut for $(document).ready(function(){});
Just place both pieces of code inside a single DOM ready handler. e.g.
$(function () {
$("form").on('submit', function (event) {
event.preventDefault();
data = $(this).serialize();
$.ajax({
type: "POST",
url: "calls/insert_fryd.asp",
data: data
}).success(function () {});
});
$(".btn-style").click(function () {
$(this).val('data sent');
$(this).attr('disabled', true);
});
});
Assuming ".btn-style" matches your submit button you can simplify this to:
$(function () {
$("form").on('submit', function (event) {
event.preventDefault();
// Disable submit button on this specific form
$('.btn-style', this).val('data sent').prop('disabled', true);
data = $(this).serialize();
$.ajax({
type: "POST",
url: "calls/insert_fryd.asp",
data: data
}).success(function () {
});
});
});
The subsequent issue found (not working in Chrome) is down to using disabled via attr. For genuine properties (like checked and disabled) always use prop instead of attr.

Appending item to list with Ajax after post - layout related

I have an activity stream for both users use, and site-wide view. Currently when a user posts an update, I have it displaying a default bootstrap success alert. I have seen other websites append the new post to the list by sliding down the existing items, and appending the newest post to the top of the list.
I am attempting to do just that, but I am not sure how to add it with all the proper styling. (code below). I am tried adding all the <div> tags that make up one activity item in my feed, but without success.
TL;DR - Is there a way to have ajax look at the current top activity item, clone it, and append it to the top? It would make the code more dynamic for my use, and avoid having to place CSS inside the .js file.
jQuery(document).ready(function ($) {
$('form#postActivity').submit(function (event) {
event.preventDefault();
$postActivityNow = (this);
var subject = $('#activity_subject').val();
var message = $('#activity_content').val();
var data = {
'action': 'postAnActivity',
'subject': subject,
'message': message,
}
$.ajax({
type: 'post',
url: postAnActivityAjax.ajaxurl,
data: data,
error: function (response, status) {
alert(response);
},
success: function (response) {
if (response.success) {
bootstrap_alert.success('Activity Added');
} else {
if (response.data.loggedIn == false) {
bootstrap_alert.warning('you are NOT logged in');
console.log('you are not logged in')
}
if (response.data.userExists == false) {
console.log(response);
bootstrap_alert.warning(response.data.alertMsg);
console.log(response.data.alertMsg)
}
}
}
});
});
});

you can also use .prependTo()
var newActivity = $( ".activity" ).first().clone();
newActivity.prependTo( ".parentDiv").hide().slideDown();
FIDDLE

To clone an element: jQuery.clone()
var newItem = $("#myDiv").clone();
To append it as first child: jQuery.prepend()
$("#parentDiv").prepend( newItem );
Regards,
hotzu

I have already done in the past using $.prepend()
Check this url for more information jquery append to front/top of list