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JavaScript running on page load

This JS is running on my page load and I don't want it to. I thought it should wait for change of ddlEquipment but it isn't. On top of that selectedID4 should be null at page load so it shouldn't run the if. Does anyone know how I can stop this?
$("#ddlEquipment").change(function() {
var selectedid = $('#ddlSubDepartments option:selected').val();
var selectedid2 = $('#ddlDepartments option:selected').val();
var selectedid3 = $('#ddlMachines option:selected').val();
var selectedid4 = $('#ddlEquipment option:selected').val();
alert("test");
if (selectedid4 != null) {
$.ajax({
url: "/Problem/PopulateProblemsddl",
data: {
id: selectedid,
id2: selectedid2,
id3: selectedid3,
id4: selectedid4
},
type: "Post",
dataType: "Json",
success: function(result) {
console.log(result);
var s = '<th></th>';
for (var i = 0; i < result.length; i++) {
s += '<th>'
result[i].value '</th>';
}
console.log(s);
$('#NameOfProblem').html(s);
});
}
else {
alert("this is else");
}
});

Wrap you function into
window.addEventListener('load', () => {
$("#ddlEquipment").change(function () {
// rest of your code
}
});

Lazy loading works for loading data, but not when filtering

Here the first script is written for lazy loading the table data and the second script is written for filtering with lazy loading but the second one is not working.
I have a Codeigniter report in which I did some filtering on the table data. I am using jQuery AJAX to lazy load data. What I expected is that when I fetch the data with a filter the lazy loading is not working. Shall i use first script for both table load by default and for filter. i am getting confusion. Can anyone please tell me how to merge both script as a single script for both. Please help.
$(document).ready(function() {
$('#filter').popover({
placement: 'bottom',
title: (' ') + '<button type="button" class="close pull-right" data-dismiss="alert" style="color:black;">×</button>',
html: true,
content: $('#customdiv').html()
});
$(document).on("click", ".popover .close", function() {
$(this).parents(".popover").popover('hide');
});
var limit = 20;
var start = 0;
var action = 'inactive';
function lazzy_loader(limit) {
var output = '';
for (var count = 0; count < limit; count++) {
output += '<tr class="post_data">';
output += '</tr>';
}
$('#load_data_message').html(output);
}
lazzy_loader(limit);
function search_fields(limit, start) {
$(".spinner").show();
$.ajax({
url: "<?=base_url()?>missed_call_campaign/fetch_data",
method: "POST",
data: {
limit: limit,
start: start
},
cache: false,
success: function(data) {
$(".spinner").hide();
if (data == '') {
$('#load_data_message').html('<p class="content-desc">No More Data Found</p>');
action = 'active';
} else {
$('#load_data').append(data);
$('#load_data_message').html("");
action = 'inactive';
}
}
});
}
if (action == 'inactive') {
action = 'active';
search_fields(limit, start);
}
$(window).scroll(function() {
if ($(window).scrollTop() + $(window).height() > $("#load_data").height() && action == 'inactive') {
lazzy_loader(limit);
action = 'active';
start = start + limit;
setTimeout(function() {
search_fields(limit, start);
}, 100);
}
});
});
function subcategory() {
var ClickedCategory = new Array();
$('.CategoryClicked').each(function() {
if ($(this).is(':checked')) {
ClickedCategory.push($(this).val());
}
});
$.ajax({
type: 'POST',
url: "<?=base_url()?>missed_call_campaign/subcategory_checkbox",
data: {
type: 'text',
ClickedCategory: ClickedCategory
},
success: function(response) {
$("#collapsepp").hide();
$("#collapseqq").html(response);
}
});
}
function subsource() {
var ClickedSource = new Array();
$('.SourceClicked').each(function() {
if ($(this).is(':checked')) {
ClickedSource.push($(this).val());
}
});
$.ajax({
type: 'POST',
url: "<?=base_url()?>missed_call_campaign/subsource_checkbox",
data: {
type: 'text',
ClickedSource: ClickedSource
},
success: function(response) {
$("#collapserr").hide();
$("#collapsess").html(response);
}
});
}
function clearFilter() {
location.reload();
}
$(document).ready(function() {
$(document).on("click", "#data_filter", function() {
var CheckedRep = new Array();
var ClickedStatus = new Array();
var ClickedType = new Array();
var ClickedCategory = new Array();
var ClickedSubCategory = new Array();
var ClickedSubCategory_Filter = new Array();
var ClickedSource = new Array();
var ClickedSubSource = new Array();
var ClickedSubSource_Filter = new Array();
$('.RepClicked').each(function() {
if ($(this).is(':checked')) {
CheckedRep.push($(this).val());
}
});
$('.StatusClicked').each(function() {
if ($(this).is(':checked')) {
ClickedStatus.push($(this).val());
}
});
$('.TypeClicked').each(function() {
if ($(this).is(':checked')) {
ClickedType.push($(this).val());
}
});
$('.CategoryClicked').each(function() {
if ($(this).is(':checked')) {
ClickedCategory.push($(this).val());
}
});
$('.SourceClicked').each(function() {
if ($(this).is(':checked')) {
ClickedSource.push($(this).val());
}
});
$('.SubSourceClicked').each(function() {
if ($(this).is(':checked')) {
ClickedSubSource.push($(this).val());
}
});
$('.SubCategoryClicked').each(function() {
if ($(this).is(':checked')) {
ClickedSubCategory.push($(this).val());
}
});
$('.SubCategoryChecked_Filter').each(function() {
if ($(this).is(':checked')) {
ClickedSubCategory_Filter.push($(this).val());
}
});
$('.SubSourceClicked_filter').each(function() {
if ($(this).is(':checked')) {
ClickedSubSource_Filter.push($(this).val());
}
});
if ((CheckedRep.length > 0) || (ClickedStatus.length > 0) || (ClickedType.length > 0) || (ClickedCategory.length > 0)
(ClickedSource.length > 0) || (ClickedSubSource.length > 0) || (ClickedSubCategory.length > 0) ||
(ClickedSubCategory_Filter.length > 0) || (ClickedSubSource_Filter.length > 0)) {
var limits = 20;
var starts = 0;
var actions = 'inactive';
lazzy_loading(limits);
if (actions == 'inactive') {
actions = 'active';
filter_data(limits, starts, CheckedRep, ClickedStatus, ClickedType, ClickedCategory, ClickedSubCategory, ClickedSubCategory_Filter,
ClickedSource, ClickedSubSource, ClickedSubSource_Filter);
}
$(window).scroll(function() {
if ($(window).scrollTop() + $(window).height() > $("#load_data_filter").height() && actions == 'inactive') {
lazzy_loading(limits);
actions = 'active';
starts = starts + limits;
setTimeout(function() {
filter_data(limits, starts, CheckedRep, ClickedStatus, ClickedType, ClickedCategory, ClickedSubCategory, ClickedSubCategory_Filter,
ClickedSource, ClickedSubSource, ClickedSubSource_Filter);
}, 100);
}
});
}
});
function lazzy_loading(limits) {
var output = '';
for (var counts = 0; counts < limits; counts++) {
output += '<tr class="post_data">';
output += '</tr>';
}
$('#load_data_filter').html(output);
}
function filter_data(limits, starts, CheckedRep, ClickedStatus, ClickedType, ClickedCategory, ClickedSubCategory, ClickedSubCategory_Filter,
ClickedSource, ClickedSubSource, ClickedSubSource_Filter) {
$.ajax({
url: "<?=base_url()?>missed_call_campaign/toDoAjax",
method: "POST",
data: {
type: 'text',
CheckedRep: CheckedRep,
ClickedStatus: ClickedStatus,
ClickedType: ClickedType,
ClickedCategory: ClickedCategory,
ClickedSource: ClickedSource,
ClickedSubSource: ClickedSubSource,
ClickedSubCategory: ClickedSubCategory,
ClickedSubCategory_Filter: ClickedSubCategory_Filter,
ClickedSubSource_Filter: ClickedSubSource_Filter,
limits: limits,
starts: starts
},
cache: false,
success: function(response) {
$(".spinner").hide();
$("#load_data").hide();
if (response == '') {
$('#load_data_message').html('<p class="content-desc">No More Data Found123</p>');
action = 'active';
} else {
$('#load_data_filter').append(response);
$('#load_data_message').html("");
action = 'inactive';
}
}
});
}
});

I suggest you to reinitialize the lazy load after success you fetched data from the back end.

Tree_view undefined after read kendo tree

Here's my problem:
I load a first time my tree to display him.
I can change the value of the Session's files name "state" to enable or disable a node in my tree.
But after I change ne value in my database and return the JSON, I read again the tree to refresh my tree with the changes but it's failed and write in console :
" TypeError: Tree_view.getElementsByClassName(...)[0].children[(item.id_perso - 1)].children[1] is undefined".
That I don't understand is I pass my first time by these functions and it work well, but when I reload it failed apparently because the it undefined.
Thank's for any help.
$(document).ready(function() {
$('#Tree_view').kendoTreeView({
template: "#= item.name #",
dataSource: Parcours,
dataTextField: 'name',
loadOnDemand: true,
expand: onExpandedItem
});
});
function onExpandedItem(e) {
var id_user = #Model.id;
var item = $('#Tree_view').data('kendoTreeView').dataItem(e.node);
var treeview = $('#Tree_view').data('kendoTreeView');
var type = item.fields.type;
if (item.level() > 0) {
item.id_parcours = item.parentNode().id_parcours;
if (item.level() == 2) {
item.id_promo = item.parentNode().id;
}
}
else item.id_parcours = item.Id;
switch (type) {
case 'parcours':
item.children.transport.options.read = {
url: '#Url.Action("Get_Session", "Users")' + '?user_id=' + id_user,
dataType: "json",
};
break;
case 'session':
item.children.transport.options.read = {
url: '#Url.Action("Get_Matiere")' + '?user_id=' + id_user,
dataType: "json"
};
break;
default:
break;
}
if (item.level() == 0) {
setTimeout(function() { waitDisable(item, treeview); }, 1000);
}
}
function waitDisable(item, treeview) {
if (item.fields.type == "parcours")
{
var node = Tree_view.getElementsByClassName('k-group')[0].children[item.id_perso - 1].children[1].children;
for (i = 0; i < item.children._data.length; i ++)
{
if (item.children._data[i].state != null) {
node[i].children[0].children[1].className = "k-in k-state-disabled";
node[i].children[0].children[0].className = ".k-icon-remove";
}
else node[i].children[0].children[0].className = "k-icon k-plus";
addRow(node, item, i, treeview);
}
}
}
var cmp = 0;
var One_Time = false;
function addRow(node_Here, item, i, treeview) {
var actual_row = node_Here[i].children[0];
if (actual_row.childNodes.length < 3) {
var newSpan = document.createElement('button');
if (item.children._data[i]._childrenOptions.data.state != null) {
newSpan.appendChild(document.createTextNode("Re-Up"));
newSpan.className = "change_state btn btn-success btn-xs";
}
else {
newSpan.appendChild(document.createTextNode("Down"));
newSpan.className = "change_state btn btn-danger btn-xs";
}
actual_row.appendChild(newSpan);
}
cmp += 1;
if (cmp == item.children._data.length)
One_Time = true;
if (One_Time) {
addClickListner(item, i, treeview);
One_Time = false;
cmp = 0;
}
}
function addClickListner(item, i, treeview) {
$(".change_state").click(function (event) {
var name_Promo_Rm = event.target.parentNode.children[1].textContent;
var User_Select = event.view.Parcours.transport.read.data.user_id;
$.ajax({
url: '#Url.Action("ChangeStatutBase", "Users")',
type: 'GET',
dataType: 'json',
data: { Name_Promo: name_Promo_Rm, User_id: User_Select },
});
refreshTree(treeview);
})
}
// Refresh tree
function refreshTree(treeview) {
// Save open items
saveExpandedItems(treeview);
// Reload data source
treeview.dataSource.read();
// Load open items
console.log("OKKKKKKK");
setTimeout(loadExpandedItems(), 600);
}

I've resolved my problem, in the "setTimeout" in the bottom I've placed "()" in the first parameter and it doesn't put the pause and data don't have the time to be loaded.

JavaScript callback function when working withing a loop

This is what the code below does:
Goes to a table in a database and retrieves some search criteria I will send to Google API (the PHP file is getSearchSon.php)
After having the results, I want to loop around it, call the Google API (searchCriteriasFuc) and store the results in an array
The last part of the code is doing an update to two different tables with the results returned from Google API (updateSearchDb.php)
In my code, I am using setTimeout in a few occasions which I don't like. Instead of using setTimeout, I would like to properly use callback functions in a more efficient way (This might be the cause of my problem) What is the best way of me doing that?
$(document).ready(function() {
$.ajax({
url: 'getSearchSon.php',
type: 'POST',
async: true,
dataType: 'Text',
/*data: { }, */
error: function(a, b, c) { alert(a+b+c); }
}).done(function(data) {
if(data != "connection")
{
var dataSent = data.split("|");
var search_criterias = JSON.parse(dataSent[0]);
var date_length = dataSent[1];
var divison_factor = dataSent[2];
var length = search_criterias.length;
var arrXhr = [];
var totalResultsArr = [];
var helperFunc = function(arrayIndex)
{
return function()
{
var totalResults = 0;
if (arrXhr[arrayIndex].readyState === 4 && arrXhr[arrayIndex].status == 200)
{
totalResults = JSON.parse(arrXhr[arrayIndex].responseText).queries.nextPage[0].totalResults;
totalResultsArr.push(totalResults);
}
}
}
var searchCriteriasFuc = function getTotalResults(searchParam, callback)
{
var searchParamLength = searchParam.length;
var url = "";
for(var i=0;i<searchParamLength;i++)
{
url = "https://www.googleapis.com/customsearch/v1?q=" + searchParam[i] + "&cx=005894674626506192190:j1zrf-as6vg&key=AIzaSyCanPMUPsyt3mXQd2GOhMZgD4l472jcDNM&dateRestrict=" + date_length;
arrXhr[i] = new XMLHttpRequest();
arrXhr[i].open("GET", url, true);
arrXhr[i].send();
arrXhr[i].onreadystatechange = helperFunc(i);
}
setTimeout(function()
{
if (typeof callback == "function") callback.apply(totalResultsArr);
}, 4000);
return searchParam;
}
function callbackFunction()
{
var results_arr = this.sort();
var countResultsArr = JSON.stringify(results_arr);
$.ajax({
url: 'updateSearchDb.php',
type: 'POST',
async: true,
dataType: 'Text',
data: { 'countResultsArr': countResultsArr },
error: function(a, b, c) { alert(a+b+c); }
}).done(function(data) {
var resultsDiv = document.getElementById("search");
if(data == "NORECORD") resultsDiv.innerHTML = 'Updated failed. There was a problem with the database';
else resultsDiv.innerHTML = 'Update was successful';
}); //end second ajax call
}
//llamando funcion principal
var arrSearchCriterias = searchCriteriasFuc(search_criterias, callbackFunction);
}
else
{
alert("Problem with MySQL connection.");
}
}); // end ajax
});

How you did it in 2015
Callbacks are things of the past. Nowadays you represent result values of asynchronous tasks with Promises. Here is some untested code:
$(document).ready(function() {
$.ajax({
url: 'getSearchSon.php',
type: 'POST',
async: true,
dataType: 'text'
/*data: { }, */
}).then(function(data) {
if (data == 'connection') {
alert("Problem with MySQL connection.");
} else {
var dataSent = data.split("|");
var search_criterias = JSON.parse(dataSent[0]);
var date_length = dataSent[1];
var divison_factor = dataSent[2];
return Promise.all(search_criterias.map(function(criteria) {
return $.ajax({
url: "https://www.googleapis.com/customsearch/v1"
+ "?q=" + criteria
+ "&cx=005894674626506192190:j1zrf-as6vg"
+ "&key=AIzaSyCanPMUPsyt3mXQd2GOhMZgD4l472jcDNM"
+ "&dateRestrict=" + date_length,
type: 'GET'
});
})).then(function(totalResultsArr) {
totalResultsArr.sort();
var countResultsArr = JSON.stringify(totalResultsArr);
return $.ajax({
url: 'updateSearchDb.php',
type: 'POST',
async: true,
dataType: 'text',
data: { 'countResultsArr': countResultsArr },
error: function(a, b, c) { alert(a+b+c); }
});
}).then(function(data) {
var resultsDiv = document.getElementById("search");
if(data == "NORECORD") {
resultsDiv.innerHTML = 'Updated failed. There was a problem with the database';
} else {
resultsDiv.innerHTML = 'Update was successful';
}
});
}
}).then(null, function() {
alert('Some unexpected error occured: ' + e);
});
});
This is how you do it in 2016 (ES7)
You can just use async/await.
$(document).ready(async() => {
try {
var data = await $.ajax({
url: 'getSearchSon.php',
type: 'POST',
async: true,
dataType: 'text'
/*data: { }, */
});
if (data == 'connection') {
alert("Problem with MySQL connection.");
} else {
var dataSent = data.split("|");
var search_criterias = JSON.parse(dataSent[0]);
var date_length = dataSent[1];
var divison_factor = dataSent[2];
var totalResultsArr = await Promise.all(
search_criterias.map(criteria => $.ajax({
url: "https://www.googleapis.com/customsearch/v1"
+ "?q=" + criteria
+ "&cx=005894674626506192190:j1zrf-as6vg"
+ "&key=AIzaSyCanPMUPsyt3mXQd2GOhMZgD4l472jcDNM"
+ "&dateRestrict=" + date_length,
type: 'GET'
}))
);
totalResultsArr.sort();
var countResultsArr = JSON.stringify(totalResultsArr);
var data2 = await $.ajax({
url: 'updateSearchDb.php',
type: 'POST',
async: true,
dataType: 'text',
data: { 'countResultsArr': countResultsArr },
error: function(a, b, c) { alert(a+b+c); }
});
if(data2 == "NORECORD") {
resultsDiv.innerHTML = 'Updated failed. There was a problem with the database';
} else {
resultsDiv.innerHTML = 'Update was successful';
}
}
} catch(e) {
alert('Some unexpected error occured: ' + e);
}
});
UPDATE 2016
Unfortunately the async/await proposal didn't make it to the ES7 specification ultimately, so it is still non-standard.

You could reformat your getTotalResults function in the following matter, it would then search rather sequential, but it should also do the trick in returning your results with an extra callback.
'use strict';
function getTotalResults(searchParam, callback) {
var url = "https://www.googleapis.com/customsearch/v1?q={param}&cx=005894674626506192190:j1zrf-as6vg&key=AIzaSyCanPMUPsyt3mXQd2GOhMZgD4l472jcDNM&dateRestrict=" + (new Date()).getTime(),
i = 0,
len = searchParam.length,
results = [],
req, nextRequest = function() {
console.log('received results for "' + searchParam[i] + '"');
if (++i < len) {
completeRequest(url.replace('{param}', searchParam[i]), results, nextRequest);
} else {
callback(results);
}
};
completeRequest(url.replace('{param}', searchParam[0]), results, nextRequest);
}
function completeRequest(url, resultArr, completedCallback) {
var req = new XMLHttpRequest();
req.open("GET", url, true);
req.onreadystatechange = function() {
if (this.readyState === 4 && this.status == 200) {
var totalResults = JSON.parse(this.responseText).queries.nextPage[0].totalResults;
resultArr.push(totalResults);
completedCallback();
}
};
req.send();
}
getTotalResults(['ford', 'volkswagen', 'citroen', 'renault', 'chrysler', 'dacia'], function(searchResults) {
console.log(searchResults.length + ' results found!', searchResults);
});
However, since you already use JQuery in your code, you could also construct all the requests, and then use the JQuery.when functionality, as explained in this question
Wait until all jQuery Ajax requests are done?

To get the callback execute after google calls are finished you could change:
var requestCounter = 0;
var helperFunc = function(arrayIndex)
{
return function()
{
if (arrXhr[arrayIndex].readyState === 4 && arrXhr[arrayIndex].status == 200)
{
requestCounter++;
totalResults = JSON.parse(arrXhr[arrayIndex].responseText).queries.nextPage[0].totalResults;
totalResultsArr.push(totalResults);
if (requestCounter === search_criterias.length) {
callbackFunction.apply(totalResultsArr);
}
}
}
}
then remove the setTimeout on searchCreteriaFuc.
Consider using promises and Promise.all to get all much cleaner :D

Ad Block Plus Blocking jQuery Script?

I have a script that pulls data from my CMS and then allows a person to vote on a poll. The script works fine. However, I have Ad Block Plus Plugin installed in Firefox. When that is enabled to blocks the script from submitting the form correctly. It appears to submit correctly in the front end but is never registered in the back end.
Why does Ad Block Plus block my script that has nothing to do with ads?
The script is below:
$(document).ready(function () {
var Engine = {
ui: {
buildChart: function() {
if ($("#pieChart").size() === 0) {
return;
}
var pieChartData = [],
totalVotes = 0,
$dataItems = $("ul.key li");
// grab total votes
$dataItems.each(function (index, item) {
totalVotes += parseInt($(item).data('votes'));
});
// iterate through items to draw pie chart
// and populate % in dom
$dataItems.each(function (index, item) {
var votes = parseInt($(item).data('votes')),
votePercentage = votes / totalVotes * 100,
roundedPrecentage = Math.round(votePercentage * 10) / 10;
$(this).find(".vote-percentage").text(roundedPrecentage);
pieChartData.push({
value: roundedPrecentage,
color: $(item).data('color')
});
});
var ctx = $("#pieChart").get(0).getContext("2d");
var myNewChart = new Chart(ctx).Pie(pieChartData, {});
}, // buildChart
pollSubmit: function() {
if ($("#pollAnswers").size() === 0) {
return;
}
var $form = $("#pollAnswers"),
$radioOptions = $form.find("input[type='radio']"),
$existingDataWrapper = $(".web-app-item-data"),
$webAppItemName = $existingDataWrapper.data("item-name"),
$formButton = $form.find("button"),
bcField_1 = "CAT_Custom_1",
bcField_2 = "CAT_Custom_2",
bcField_3 = "CAT_Custom_3",
$formSubmitData = "";
$radioOptions.on("change", function() {
$formButton.removeAttr("disabled"); // enable button
var chosenField = $(this).data("field"), // gather value
answer_1 = parseInt($existingDataWrapper.data("answer-1")),
answer_2 = parseInt($existingDataWrapper.data("answer-2")),
answer_3 = parseInt($existingDataWrapper.data("answer-3"));
if (chosenField == bcField_1) {
answer_1 = answer_1 + 1;
$formSubmitData = {
ItemName: $webAppItemName,
CAT_Custom_1: answer_1,
CAT_Custom_2: answer_2,
CAT_Custom_3: answer_3
};
}
if (chosenField == bcField_2) {
answer_2 = answer_2 + 1;
$formSubmitData = {
ItemName: $webAppItemName,
CAT_Custom_1: answer_1,
CAT_Custom_2: answer_2,
CAT_Custom_3: answer_3
};
}
if (chosenField == bcField_3) {
answer_3 = answer_3 + 1;
$formSubmitData = {
ItemName: $webAppItemName,
CAT_Custom_1: answer_1,
CAT_Custom_2: answer_2,
CAT_Custom_3: answer_3
};
}
prepForm($formSubmitData);
});
function prepForm(formSubmitData) {
$formButton.click(function(e) {
e.preventDefault();
logAnonUserIn("anon", "anon", formSubmitData); // log user in
}); // submit
} // prepForm
function logAnonUserIn(username, password, formSubmitData) {
$.ajax({
type: 'POST',
url: '/ZoneProcess.aspx?ZoneID=-1&Username=' + username + '&Password=' + password,
async: true,
beforeSend: function () {},
success: function () {},
complete: function () {
fireForm(formSubmitData);
}
});
} // logAnonUserIn
function fireForm(formSubmitData) {
// submit the form
var url = "/CustomContentProcess.aspx?A=EditSave&CCID=13998&OID=3931634&OTYPE=35";
$.ajax({
type: 'POST',
url: url,
data: formSubmitData,
async: true,
success: function () {},
error: function () {},
complete: function () {
window.location = "/";
}
});
}
} // pollSubmit
} // end ui
};
Engine.ui.buildChart();
Engine.ui.pollSubmit();
});

As it turns out easylist contains this filter:
.aspx?zoneid=
This is why my script is being blocked.
I was told I can try this exception filter:
##||example.com/ZoneProcess.aspx?*$xmlhttprequest
I could also ask easylist to add an exception.
Answer comes from Ad Block Plus Forums.