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Jquery taking much time to run in mobile chrome

i have a website its working fine in desktop but when i run it into mobile Browser specially chrome. and adding books to wishlist's it takes about 1 minute to process. its working great in Firefox.
website link - bookwise.co.in
my code is :
class BaseClass {
constructor() {
if (this.constructor === BaseClass) {
throw new Error("Can't instantiate abstract class!");
}
}
post(data, success, failure) {
var endpoint = this.endpoint;
showLoader();
$.ajax({
url: SITE_URL + endpoint,
data: data,
type: 'POST',
headers: {
'X-API-KEY': globalUser.accessToken
},
success: function(data) {
hideLoader();
if (typeof(success) == 'function') {
success(data)
}
},
error: function(err) {
hideLoader();
if (typeof(failure) == 'function') {
failure(err)
}
}
});
}
delete(data, success, failure) {
var endpoint = this.endpoint;
showLoader();
$.ajax({
url: SITE_URL + endpoint,
data: data,
type: 'DELETE',
headers: {
'X-API-KEY': globalUser.accessToken
},
success: function(data) {
hideLoader();
if (typeof(success) == 'function') {
success(data)
}
},
error: function(err) {
hideLoader();
if (typeof(failure) == 'function') {
failure(err)
}
}
});
}
}
class Wishlist extends BaseClass {
constructor(endpoint) {
super();
this.endpoint = endpoint ? endpoint : 'wishlist';
}
}
function bindWishListToggle() {
$(".wishlist-toggle-btn").unbind('click').bind('click', function() {
var id = $(this).parents(".similar-book-item").data("id");
var isWishList = $(this).data("wishlist");
var _this = this;
var wishlist = new Wishlist();
var successCb = function() {
$(_this).find("img").attr("src", isWishList ? "assets/images/heartempty.png" : "assets/images/heartfull.png");
$(_this).data("wishlist", !isWishList);
};
var failCB = function(data) {
if (data.status == 401)
$("#myModal").modal();
}
if (isWishList) {
wishlist.delete({
bookId: id
}, successCb, failCB);
} else {
wishlist.post({
bookId: id
}, successCb, failCB);
}
});
}
above are my code i don't know why its happening only in chrome.

How to repeat ajax request depending return

I have this code :
.on('finish.countdown', function() {
var onEndAuction = function () {
$.ajax({
type: "POST",
url: "{{path('app_auction_end')}}",
data: {auctionId:{{ aReturn.oAuction.getId()}}},
success: function (data) {
console.log(data);
if (data == 0) {
setTimeout(onEndAuction, i_timer);
} else {
document.location.reload(true);
}
}
});
};
});
I want if data == 0 need to make another call on app_auction_end after 10 sec. Can you help me please ? Thx in advance and sorry for my english

Give the operation a named function:
var someFunction = function () {
$.ajax({
//...
});
};
Which you would then use for your .on() call:
.on('finish.countdown', someFunction)
And in the success handler, set a timeout for that function:
if (data == 0) {
setTimeout(someFunction, i_timer);
}

.on('finish.countdown', function() {
var onEndAuction = function () {
$.ajax({
type: "POST",
url: "{{path('app_auction_end')}}",
data: {auctionId:{{ aReturn.oAuction.getId()}}},
success: function (data) {
console.log(data);
if (data == 0) {
setTimeout(onEndAuction, i_timer);
} else {
document.location.reload(true);
}
}
});
};
//do our initial call otherwise it will never get called.
onEndAuction();
});

How to solve Uncaught TypeError: Cannot read property 'length' of null

I have installed a wp plugin , When I use default wp theme , it works fine but when I use another theme it does not loads one of the tabs , by inspect element I get this
Uncaught TypeError: Cannot read property 'length' of null
The code on the page it is mentioning is this
function show_submissions(page,search)
{
if (typeof page=='string')
{
var data = 'action=formcraft_page&page='+page;
}
else
{
var data = 'action=formcraft_page&search='+search;
var page = 0;
}
jQuery('#subs tbody').html('<tr><td colspan="6"><center><div style="margin: 30px auto; width: 30px;font-size: 14px; color: #888">loading...</div></center></td></tr>')
jQuery.ajax({
url: ajaxurl,
type: "POST",
dataType: "json",
data: data,
success: function (response) {
jQuery('.fc_pagination .active').removeClass('active');
jQuery('.fc_pagination .page:nth-child('+page+')').addClass('active');
if (response.length==0)
{
jQuery('#subs tbody').html('<center style="margin: 20px; font-size: 14px">No Results</center>');
return false;
}
for (var sub in response)
{
var read = response[sub]['seen'] == '' || response[sub]['seen'] == null ? 'Unread' : 'Read';
var shade = response[sub]['seen'] == '' || response[sub]['seen'] == null ? 'row_shade' : '';
var id = response[sub]['id'];
var name = response[sub]['name'] ? response[sub]['name'] : 'deleted';
var row = '<tr id="sub_'+id+'" class="'+shade+'">';
var row = row + '<td>'+id+'</td>';
var row = row + '<td id="rd_'+id+'">'+read+'</td>';
var row = row + '<td id="rd_'+id+'">'+response[sub]['added']+'</td>';
var row = row + '<td>'+name+'</td>';
var row = row + '<td><a class="fc-btn show-message" id="upd_'+id+'" data-target="#view_modal" data-toggle="fcmodal">View</a><div class="sub-content" id="sub-content-'+id+'">'+response[sub]['content']+'</div></td>';
var row = row + '<td><i class="formcraft-trash sub_upd" id="del_'+id+'" title="Delete message"></i> <i class="formcraft-bookmark-empty sub_upd" id="read_'+id+'" title="Mark as unread"></i></td>';
var row = row + '</tr>';
var html = html + row;
}
jQuery('#subs tbody').html('');
jQuery('#subs tbody').append(html);
},
error: function (response) {
jQuery('#save_form_btn').html(jQuery('#save_form_btn').attr('data-error'));
window.saving = false;
}
});
}
function drawChart(id, from, to)
{
jQuery('#chart-cover').addClass('loading')
if (id)
{
var jsonData = jQuery.ajax({
url: ajaxurl,
dataType: "json",
type: "POST",
data: 'id='+id+'&action=formcraft_chart&from='+from+'&to='+to,
async: false
}).responseText;
}
else
{
var jsonData = jQuery.ajax({
url: ajaxurl,
dataType: "json",
data: 'action=formcraft_chart&from='+from+'&to='+to,
async: false
}).responseText;
}
var jsonData = jQuery.parseJSON( jsonData );
var totalViews = 0;
for (values in jsonData.views)
{
totalViews = totalViews + parseInt(jsonData.views[values][1]);
}
var totalSubmissions = 0;
for (values in jsonData.submissions)
{
totalSubmissions = totalSubmissions + parseInt(jsonData.submissions[values][1]);
}
jQuery({someValue: parseInt(jQuery('#tvs').text())}).animate({someValue: totalViews}, {
duration: 900,
easing:'swing',
step: function() {
jQuery('#tvs').text(Math.ceil(this.someValue));
}
});
jQuery({someValue: parseInt(jQuery('#tss').text())}).animate({someValue: totalSubmissions}, {
duration: 900,
easing:'swing',
step: function() {
jQuery('#tss').text(Math.ceil(this.someValue));
}
});
jQuery({someValue: parseInt(jQuery('#tcs').text())}).animate({someValue: (Math.round((totalSubmissions/totalViews)*10000)/100)}, {
duration: 900,
easing:'swing',
step: function() {
jQuery('#tcs').text(Math.ceil(this.someValue)+'%');
}
});
setTimeout(function(){
jQuery('#tvs').text(totalViews);
jQuery('#tss').text(totalSubmissions);
jQuery('#tcs').text((Math.round((totalSubmissions/totalViews)*10000)/100)+'%');
}, 1000);
var plot = jQuery.plot("#chart-inner", [{
data: jsonData.views,
label: 'views',
color: 'rgb(255, 175, 80)',
bars: {show:true, align: 'center'}
},{
data: jsonData.submissions,
label: 'submissions',
color: 'rgb(28, 160, 28)',
lines: {show:true}
}], {
series: {
points: { show:true }
},
grid: {
hoverable: true,
clickable: true
},
xaxis: {
mode: "categories"
}
});
jQuery('#chart-cover').removeClass('loading')
jQuery("#chart-inner").bind("plothover", function (event, pos, item) {
if (item) {
if (previousPoint != item.dataIndex) {
previousPoint = item.dataIndex;
jQuery("#tooltip").remove();
var x = Object.keys(item.series.xaxis.categories)[item.datapoint[0]],
y = item.datapoint[1];
showTooltip(item.pageX, item.pageY,
y + ' ' + item.series.label + " on " + x);
}
} else {
jQuery("#tooltip").remove();
previousPoint = null;
}
});
jQuery("#chart-inner").bind("plotclick", function (event, pos, item) {
if (item) {
jQuery("#clickdata").text(" - click point " + item.dataIndex + " in " + item.series.label);
plot.highlight(item.series, item.datapoint);
}
});
}
function setupLabel()
{
if (jQuery('.label_check input').length) {
jQuery('.label_check').each(function(){
jQuery(this).removeClass('c_on');
});
jQuery('.label_check input:checked').each(function(){
jQuery(this).parent('label').addClass('c_on');
});
};
if (jQuery('.label_radio input').length) {
jQuery('.label_radio').each(function(){
jQuery(this).removeClass('r_on');
});
jQuery('.label_radio input:checked').each(function(){
jQuery(this).parent('label').addClass('r_on');
});
};
};
jQuery(function () {
jQuery('#import').fileupload({
dataType: 'json',
add: function (e, data)
{
var type = data.files[0].name;
var type = type.split('.');
var type = type[1];
if (type!='txt')
{
alert('Only .txt files');
return false;
}
data.submit();
jQuery('#fu-label').text('wait');
jQuery('#import').prop("disabled",true);
},
done: function (e, resp) {
if(resp.result.failed)
{
jQuery('#import').prop("disabled",false);
jQuery('#fu-label').text(resp.failed);
}
else
{
jQuery('#import_form').val(resp.result.files.new_name);
jQuery('#import').prop("disabled",true);
jQuery('#fu-label').html('<i class="formcraft-ok" style="font-size: 10px"></i> Done');
jQuery('#rand_b').trigger('click');
setupLabel();
jQuery('#import').parent().addClass('green');
}
},
fail: function (e, data){
jQuery('.import').prop("disabled",false);
jQuery('#import_field_label').text('Failed');
jQuery('#fu-label').text('Rety');
}
});
});
jQuery(document).ready(function () {
setTimeout(function(){
jQuery('#fc-page-1').trigger('click');
}, 1000);
/* Update Submissions */
jQuery('body').on('click','.sub_upd, .show-message',function(){
var id = jQuery(this).attr('id').split('_');
var id2 = jQuery(this).attr('id');
jQuery('#view_modal .modal-body').html(jQuery('#sub-content-'+id[1]).html());
if (id[0]=='upd')
{
jQuery('#view_modal .modal-body').html(jQuery('#upd_text_'+id[1]).html());
jQuery('#view_modal .myModalLabel').html(jQuery('#upd_name_'+id[1]).html());
jQuery('#rd_'+id[1]).html('Read');
jQuery(this).parent().parent().addClass('row_shade');
jQuery.ajax({
url: ajaxurl,
type: "POST",
data: 'action=formcraft_sub_upd&type=upd&id='+id[1],
success: function (response) {
jQuery('#'+id2).parent().parent().removeClass('row_shade');
},
error: function (response) {
}
});
}
else if (id[0]=='del')
{
jQuery.ajax({
url: ajaxurl,
type: "POST",
data: 'action=formcraft_sub_upd&type=del&id='+id[1],
success: function (response) {
if (response=='D')
{
jQuery('#'+id2).removeClass('formcraft-trash');
jQuery('#'+id2).addClass('formcraft-ok').css('color','green');
}
},
error: function (response) {
}
});
}
else if (id[0]=='read')
{
jQuery.ajax({
url: ajaxurl,
type: "POST",
data: 'action=formcraft_sub_upd&type=read&id='+id[1],
success: function (response) {
if (response=='D')
{
jQuery('#rd_'+id[1]).html('Unread');
jQuery('#'+id2).parent().parent().addClass('row_shade');
}
},
error: function (response) {
}
});
}
});
// Set up DataTable
if (jQuery('#subs').length)
{
jQuery('#ext').dataTable({
"sPaginationType": "full_numbers"
});
jQuery('#files_manager_table').dataTable({
"sPaginationType": "full_numbers"
});
}
jQuery('#new_form').submit(function(event){
event.preventDefault();
var data = 'action=formcraft_add&import_form='+jQuery('#import_form').val()+'&name='+jQuery('#new_name').val()+'&desc='+jQuery('#new_desc').val()+'&type_form='+jQuery('[name="type_form"]:checked').val()+'&duplicate='+jQuery('[name="duplicate"]').val();
jQuery('.response_ajax').html('processing ...');
jQuery.ajax({
url: ajaxurl,
type: "POST",
dataType: 'json',
data: data,
success: function (response) {
if (response.Added)
{
jQuery('.response_ajax').html('Added');
window.location.href = 'admin.php?page=formcraft_admin&id='+response.Added;
}
else if (response.Error)
{
jQuery('.response_ajax').html(response.Error);
}
},
error: function (response) {
jQuery('.response_ajax').html(response);
}
});
});
jQuery('#subs_search').submit(function(event){
event.preventDefault();
show_submissions(false,jQuery('#search_query').val());
});
drawChart();
jQuery('.datepicker-field').datepicker().on('changeDate', function(ev){
jQuery(this).datepicker('hide');
jQuery(this).trigger('change');
});
jQuery('.datepicker-field').wrap("<div class='datepicker-cover'></div>");
jQuery('body').on('click', '.datepicker-cover', function(){
jQuery(this).find('input').focus();
});
jQuery('body').on('click','.nav-main li', function(event)
{
event.preventDefault();
var index = jQuery(this).parent().index();
jQuery('.tab-content .tab-pane').removeClass('active');
jQuery('.tab-content .tab-pane:eq('+index+')').addClass('active');
jQuery('.nav-main table td li').removeClass('active');
jQuery('.nav-main table td:eq('+index+') li').addClass('active');
});
jQuery("input.rand2").focus(function(){
event.stopPropagation();
});
jQuery('#rand_a').change(function(){
jQuery('#rand_aa').trigger('click');
setupLabel();
});
jQuery('body').on('submit','#fc-pk',function(event){
event.preventDefault();
jQuery('#fc-pk .response').text('...');
jQuery.ajax({
type: "GET",
url: ajaxurl,
data: 'key='+jQuery('#fc-pk-input').val()+'&action=formcraft_verifyLicense',
dataType: "json",
success: function(response)
{
if (response.message)
{
jQuery('#fc-pk .response').text(response.message);
}
else
{
jQuery('#fc-pk .response').text('Unknown error');
}
},
});
});
jQuery('body').on('click','.delete_from_manager',function(){
jQuery(this).html(jQuery(this).attr('data-loading'));
if (jQuery(this).attr('data-name')){var data = 'name='+encodeURIComponent(jQuery(this).attr('data-name'));}
else if (jQuery(this).attr('data-key')){var data = 'key='+encodeURIComponent(jQuery(this).attr('data-key'));}
var id_this = this.id;
jQuery.ajax({
url: ajaxurl,
type: "POST",
data: 'action=formcraft_delete_file&'+data,
success: function (response) {
if (response=='Deleted')
{
jQuery('#'+id_this).removeClass('btn-danger');
jQuery('#'+id_this).addClass('btn-success');
jQuery('#'+id_this).html(jQuery('#'+id_this).attr('data-complete'));
}
},
error: function (response) {
}
});
});
jQuery('#export').click(function(){
window.open(Url.exporturl,'_blank');
});
jQuery('body').on('click', '.delete-row', function() {
if (confirm('Are you sure you want to delete the form? You can\'t undo this action.')) {
if(jQuery(this).hasClass('btn-danger'))
{
var this_id = jQuery(this).attr('id');
jQuery(this).html(jQuery(this).attr('data-loading'));
var id = jQuery(this).parent('td').parent('tr').attr('id');
jQuery.ajax({
url: ajaxurl,
type: "POST",
data: 'action=formcraft_del&id='+id,
success: function (response) {
if (response=='Deleted')
{
jQuery('#'+this_id).html(jQuery('#'+this_id).attr('data-complete'));
jQuery('#'+this_id).removeClass('btn-danger');
jQuery('#'+this_id).addClass('btn-success');
}
else
{
jQuery('#'+this_id).html(jQuery('#'+this_id).attr('data-reset'));
}
},
error: function (response) {
alert("There was an error.");
}
});
}
}
});
jQuery('body').on('click', '.row_click', function() {
var id = jQuery(this).parent('tr').attr('id');
window.location.href = 'admin.php?page=formcraft_admin&id='+id;
});
// Edit Form Name and Description
jQuery("body").on('click', '.edit_btn', function(event){
event.stopPropagation();
jQuery(this).hide();
jQuery(this).parent().children('.rand').hide();
var name = jQuery(this).prev('a').html();
jQuery(this).prev('input.rand2').show();
jQuery(this).prev('input.rand2').focus();
jQuery(this).next('a.save_btn').show();
});
jQuery('body').on('click','.rand2',function(event){
event.stopPropagation();
});
jQuery("body").on('click', '.save_btn', function(event){
event.stopPropagation();
jQuery(this).hide();
var this_id = jQuery(this).attr('id');
var id = jQuery(this).attr('id').split('_');
var val = jQuery(this).parents().children('.rand2').val();
jQuery.ajax({
url: ajaxurl,
type: "POST",
data: 'action=formcraft_name_update&name='+val+'&id='+id[1],
success: function (response)
{
if (response=='D')
{
jQuery('#'+this_id).parent().children('.rand').text(val);
jQuery('#'+this_id).parent().children('input.rand2').hide();
jQuery('#'+this_id).parent().children('.rand').show();
jQuery('#'+this_id).parent().children('.edit_btn').show();
}
else
{
jQuery('#'+this_id).show();
jQuery('#'+this_id).parent().children('input.rand2').hide();
jQuery('#'+this_id).parent().children('.rand').show();
jQuery('#'+this_id).parent().children('.edit_btn').show();
}
},
error: function (response)
{
jQuery('#'+this_id).show();
}
});
});
jQuery('#stats_select, #chart-from, #chart-to').change(function(){
var id = jQuery('#stats_select').val();
var from = jQuery('#chart-from').val();
var to = jQuery('#chart-to').val();
drawChart(id, from, to);
});
jQuery('#chart-to').datepicker('remove');
jQuery('#chart-to').datepicker({'endDate': new Date()});
jQuery('#chart-from').change(function(){
var sd = jQuery(this).val().split('/');
sd = new Date( parseInt(sd[0]), parseInt(sd[1])-1, parseInt(sd[2]) );
jQuery('#chart-to').datepicker('remove');
jQuery('#chart-to').datepicker({'startDate': sd}).on('changeDate', function(ev){
jQuery(this).datepicker('hide');
jQuery(this).trigger('change');
});
});
jQuery('#export_select').change(function(){
var val = jQuery(this).val();
if (val=='0')
{
var href = jQuery('#export_url').attr('href');
var href = href.replace('?id='+href.substring(href.indexOf('?id=')+4, href.length),'?id=0');
}
else
{
var href = jQuery('#export_url').attr('href');
var href = href.replace('?id='+href.substring(href.indexOf('?id=')+4, href.length),'?id='+val);
}
jQuery('#export_url').attr('href',href);
});
setupLabel();
jQuery('body').addClass('has-js');
jQuery('body').on("click",'.label_check, .label_radio' , function(){
setupLabel();
});
jQuery('body').on('click', '.show-message', function(){
var html = jQuery(this).parent().find('.sub-content').html();
jQuery('#print_area').html(html);
});
jQuery('body').on('click','.fc_pagination > .page',function(){
show_submissions(jQuery(this).text(),false);
});
});
Here is a screenshot on both theme from inspect element and working/non working page
http://i.stack.imgur.com/6TkWs.png

how to make ajax synchronous? [duplicate]

This question already has answers here:
How do I return the response from an asynchronous call?
(41 answers)
How can I get jQuery to perform a synchronous, rather than asynchronous, Ajax request?
(14 answers)
Closed 9 years ago.
How do I make function out of this?
//check if station is alive
$.ajax({
url: "lib/grab.php",
data: "check_live=1&stream_url="+valueSelected,
type: "GET",
success: function (resp) {
if (resp == 1) {
play_this(valueSelected);
} else {
//
}
},
error: function (e) {
console.dir(e);
}
});
I thought I could do something like this:
function is_alive(valueSelected) {
result = false;
//check if station is alive
$.ajax({
url: "lib/grab.php",
data: "check_live=1&stream_url="+valueSelected,
type: "GET",
success: function (resp) {
if (resp == 1) {
result = true;
} else {
//
}
},
error: function (e) {
console.dir(e);
}
});
return result;
}
But obviously due to asynchronous nature of ajax call, result always returns false.
What is the trick of dealing with this situation?
Seems to work:
//check if station is alive
function is_alive(url) {
//
var result = false;
//
return $.ajax({
url: "lib/grab.php",
data: "check_live=1&stream_url="+url,
type: "GET",
success: function (resp) {
if (resp == 1) {
//
result = true;
//
}
},
error: function (e) {
console.dir(e);
}
}).then(function() {
return $.Deferred(function(def) {
def.resolveWith({},[result,url]);
}).promise();
});
}
And call it like this:
//Change song on select, works both for fav and station lists
$(document).on("click", ".ui-listview li a", function(){
var valueSelected = $(this).data("station-url");
//
is_alive(valueSelected).done(function(result,url){
if (result) {
//
play_this(valueSelected);
//
}
});
});

You don't have to make it synchronous to make it a useful function.
function is_alive(valueSelected) {
//check if station is alive
return $.ajax({
url: "lib/grab.php",
data: "check_live=1&stream_url=" + valueSelected,
type: "GET",
error: function (e) {
console.dir(e);
}
});
}
is_alive(somevalue).then(function(result){
console.log(result, somevalue);
});

You can supply the async: false option
function is_alive(valueSelected) {
result = false;
//check if station is alive
$.ajax({
async: false,
url: "lib/grab.php",
data: "check_live=1&stream_url="+valueSelected,
type: "GET",
success: function (resp) {
if (resp == 1) {
result = true;
} else {
//
}
},
error: function (e) {
console.dir(e);
}
});
return result;
}

jquery triggerhandler not being called

the trigger below never call. The alert on call never pop up.
It was triggered by these statements. See second block.
$('#sCart').trigger('add', {
stock_id: stock_id
$('#sCart').on('add', function(event, data) {
alert('on add');
$.ajax({
url: '$subCartUpdate'.replace('$tokenHolder', Math.random()),
type: 'GET',
dataType: 'json',
beforeSend: function(jqXHR) {
jqXHR.setRequestHeader('if-Modified-Since', '0');
},
success: function(success, statusText, jqXHR) {
alert(statusText);
$('#sCart').trigger('clear');
$('#sCart').html(success.subCart);
if(timerId === null) {
$('#sCart').queue('add', function() {
$(this).fadeIn(function() {
$(this).dequeue('add');
});
});
} else {
clearTimeout(timerId);
}
timerId = setTimeout(function() {
$('#sCart').fadeOut();
timerId = null;
}, 7000);
$('#sCart').queue('add', function() {
var updatedItemSelector = '#stock_'+data.stock_id;
var updatedItem = $(updatedItemSelector).fadeOut(500);
updatedItem.fadeIn(2000, function() {
$(this).dequeue('add');
});
});
if(success.reservedTimeStamp) {
$('#sCartTimer').trigger('start', {timer: success.reservedTimeStamp});
}
$('#sCart').dequeue('add');
},
error: function(jqXHR, statusText, errors) {
var i = 0;
}
});
});
It was triggered from code below.
$.ajax({
url: '$addUrl',
type: 'POST',
data: {
id: stock_id,
amount: amount
},
success: function(success, statusText, jqXHR) {
alert(statusText);
if(success.reload) {
location.reload(true);
} else if(success.redirect) {
location.href = success.redirect;
} else {
$('#sCart').trigger('add', {
stock_id: stock_id
});
$('.product-amount').val(1);
//$('.type .selected').first().trigger('click');
$('.stock_left').trigger('update');
$('.purchase').trigger('unblock');
}
},
error: function(jqXHR, statusText, error) {
var i = 0;
}
});