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Get property to array and write it to new array (JS)

I have code to get data from google api.
Here is the code:
$.ajax({
url: dburl,
dataType: 'json',
async: false,
type: 'GET',
data: model,
success: function (data) {
if (data.length !== 0) {
speeddata = data;
for (var i = 0; i < speeddata.length; i++) {
path = "path=" + speeddata[i].Latitude2 + ',' + speeddata[i].Longitude2;
var googleurl = "https://roads.googleapis.com/v1/speedLimits?"
+ path + "&key=" + roadsapikey;
$.ajax({
url: googleurl,
dataType: 'json',
async: false,
type: 'GET',
success: function(data) {
speedlimits = data;
console.log(speedlimits);
for (var i = 0; i < speedlimits.length; i++) {
speedobject.push({
speedlimits: speedlimits[i].speedLimits.speedLimit
});
}
console.log(speedobject);
}
});
}
}
},
error: function () {
alert("Error");
}
});
Here is what I get in response here - speedlimits
Response
I try to take speedLimit property and push it to new object.
Like this:
for (var i = 0; i < speedlimits.length; i++) {
speedobject.push({
speedlimits: speedlimits[i].speedLimits.speedLimit
});
}
But when I show speedobject in console it is empty.
Why so? Where is my problem?

The speedlimits object looks like this:
speedlimits = { // You're looping over this (speedlimits)
speedLimits: [ // You should be looping over this (speedlimits.speedLimits[i])
{speedLimit: 50},
// ...
],
snappedPoints: []
}
You are trying to loop over the speedLimits and snappedPoints items - not the elements within speedLimits.
for (var i = 0; i < speedlimits.speedLimits.length; i++) {
speedobject.push({
speedlimits: speedlimits.speedLimits[i].speedLimit
});
}

according to the data example here the api returns an object, not an array.. so your success function would look like this.. Make sure you get the case right too.
success: function(data) {
speedlimits = data.speedLimits;
console.log(speedlimits);
for (var i = 0; i < speedlimits.length; i++) {
speedobject.push({
speedlimits: speedlimits[i].speedLimit
});
}
console.log(speedobject);
}

Break the for loop based on the ajax success variable

For the following code, the emailCnt is 50 for first iteration, I need 25 in next iteration. What is the possible way to access the variable value outside the ajax success and break the for loop execution?
var limit = 50;
var emailCnt = limit;
for (var i = 0; i < 20; i++) {
console.log(emailCnt);///this value is 50 instead I need 25
if (emailCnt < limit && i != 0) {
break;
}
setTimeout(function () {
submit_post(slNo, limit, function (output) {
slNo = output;
emailCnt = 25;
$('#load_data').html('Hello');
});
}, 1000);
}
function submit_post(slNo, limit, handleData) {
$.ajax({
type: 'POST',
async: false,
url: url,
data: { slNo: slNo, limit: limit },
success: function (data) { handleData(data); }
});
}

This successfully worked for me
var limit = 50;
var emailCnt = limit;
function submit_post(slNo, limit)
{
var result="";
$.ajax({
type: 'POST',
async: false,
url: url,
data: {slNo:slNo, limit:limit},
success: function(data) { result = data; }
});
return result;
}
for(var i=0;i<20;i++)
{
if(emailCnt < limit && i != 0)
{
break;
}
setTimeout(function () {
var output = submit_post(slNo, limit);
slNo = output;
emailCnt = 25;
$('#load_data').html('Hello');
}, 1000);
}

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

How to return what I want from ajax asynchronous request?

This thing always return false on me.
$.validator.unobtrusive.adapters.add('appointmentvalidating', ['daylimit'], function (options) {
options.rules['appointmentvalidating'] = options.params;
options.messages.appointmentvalidating = options.message;
});
$.validator.addMethod('appointmentvalidating', function (value, element, params) {
var dtnow = new Date(Date.parse(value));
var daylimit = parseInt(params.daylimit.toString());
var count = 0;
count = request(dtnow);
if (count < daylimit) {
console.log("true");
return true;
}
if (count >= daylimit) {
console.log("true");
return false;
}
});
function request(dtnow) {
$.ajax({
url: "/api/webapi/",
type: "GET",
async: true,
contentType: 'application/json; charset=utf-8',
success: function (data) {
var count = 0;
for (var i = 0; i < data.length; i++) {
var datentbproc = data[i].Date;
var datentbproccor = new Date(Date.parse(datentbproc.toString().substr(5, 2) + '/' + datentbproc.toString().substr(8, 2) + '/' + datentbproc.toString().substr(0, 4)));
if (datentbproccor.getFullYear() == dtnow.getFullYear() && datentbproccor.getMonth() == dtnow.getMonth() && datentbproccor.getDate() == dtnow.getDate()) {
count = count + 1;
}
}
return count;
},
error: function (jqXHR, textStatus, errorThrown) {
console.log('request is failed');
},
timeout: 120000,
});
}
But when I use synchronous requests like this it does return false,true as I want.
$.validator.unobtrusive.adapters.add('appointmentvalidating', ['daylimit'], function (options) {
options.rules['appointmentvalidating'] = options.params;
options.messages.appointmentvalidating = options.message;
});
$.validator.addMethod('appointmentvalidating', function (value, element, params) {
var dtnow = new Date(Date.parse(value));
var daylimit = parseInt(params.daylimit.toString());
var count = 0;
$.ajax({
url: "/api/webapi/",
type: "GET",
async: false,
contentType: 'application/json; charset=utf-8',
success: function (data) {
for (var i = 0; i < data.length; i++) {
var datentbproc = data[i].Date;
var datentbproccor = new Date(Date.parse(datentbproc.toString().substr(5, 2) + '/' + datentbproc.toString().substr(8, 2) + '/' + datentbproc.toString().substr(0, 4)));
if (datentbproccor.getFullYear() == dtnow.getFullYear() && datentbproccor.getMonth() == dtnow.getMonth() && datentbproccor.getDate() == dtnow.getDate()) {
count = count + 1;
}
}
},
error: function (jqXHR, textStatus, errorThrown) {
console.log('request is failed');
},
timeout: 120000,
});
if (count >= daylimit) {
return false;
}
else if (count < daylimit) {
return true;
}
});
As you can see I used If block outside in synchronous request. I tried lot of things. Any of them did not work. If someone face the similar problem and solved can help me I think.
What to do now?

jquery ajax not populating the drop down on first call

I have an input text box which fires each time when the user enters data and fills the input text.I'm using bootstrap typehead. Problem is when i enter a letter a it does fire ajax jquery call and fetch the data but the input text box is not populated.Now when another letter aw is entered the data fetched against letter a is filled in the text area.
I have hosted the code here http://hakunalabs.appspot.com/chartPage
Ok so here is part of my html code
<script type="text/javascript">
$(document).ready(function () {
$('#txt').keyup(function () {
delay(function () {
CallData();
}, 1000);
});
});
var delay = (function () {
var timer = 0;
return function (callback, ms) {
clearTimeout(timer);
timer = setTimeout(callback, ms);
};
})();
</script>
<input type="text" id="txt" runat="server" class="span4 typeahead local remote" placeholder="Search..." />
And here is my javascript code
var DataProvider;
function CallData() {
DataProvider = [];
var vdata = $('#txt').val();
if (vdata != "") {
var urlt = "http://examples/search?keyword=" + vdata + "&callback=my_callback";
$.ajax({
type: "GET",
url: urlt,
jsonpCallback: "my_callback",
dataType: "jsonp",
async: false,
error: function (xhr, errorType, exception) {
var errorMessage = exception || xhr.statusText;
alert("Excep:: " + exception + "Status:: " + xhr.statusText);
}
});
}
}
function my_callback(data) {
var NameArray = new Array();
var descArray = new Array();
for (var i = 0; i < data.count; i++) {
NameArray.push(data.response[i].days_till_close + " Days Left | " + data.response[i].name + " | " + data.response[i].description);
}
for (var i = 0; i < data.count; i++) {
descArray.push(data.response[i].description);
}
DataProvider = [];
for (var i = 0; i < data.count; i++) {
var dataObject = { id: i + 1, name: NameArray[i], description: descArray[i] };
DataProvider.push(dataObject);
}
var vdata = $('#txt').val();
var urlp = "http://example.com/v1/members/search?keyword=" + vdata + "&my_callbackMember";
$.ajax({
type: "GET",
url: urlp,
jsonpCallback: "my_callbackMember",
dataType: "jsonp",
error: function (xhr, errorType, exception) {
var errorMessage = exception || xhr.statusText;
alert("Excep:: " + exception + "Status:: " + xhr.statusText);
}
});
}
function my_callbackMember(data) {
var memberArray = new Array();
for (var i = 0; i < data.count; i++) {
memberArray.push(data.response[i].name);
}
for (var i = 0; i < data.count; i++) {
var dataObject = { id: i + 1, name: memberArray[i] };
DataProvider.push(dataObject);
}
localStorage.setItem("name", JSON.stringify(DataProvider));
var sources = [
{ name: "local", type: "localStorage", key: "name", display: "country" }
];
$('input.typeahead.local.remote').typeahead({
sources: [{ name: "", type: "localStorage", key: "name", display: "name"}],
itemSelected: function (obj) { alert(obj); }
});
}

Your issue is that typeahead can only present to you the results that are already in localstorage at the moment when you do a key press. Because your results are fetched via AJAX, they only show up in localstorage a second or so AFTER you've pressed the key. Therefore, you will always see the results of the last successful ajax requests in your typeahead results.
Read the bootstrap documentation for type aheads http://twitter.github.com/bootstrap/javascript.html#typeahead and read the section about "source". You can define a "process" callback via the arguments passed to your source function for asynchronous data sources.