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Why isn't this code save data in local storage (undefined)

When creating new div with data from input form, the first div save the data that i inputed, but next, when i input new data, div display undefined value.
first attempt second attempt
0: {name: "Milk", amount: "30"}
name: "Milk"
amount: "30"
1: "expense"
2: "expense"
3: "expense"
document.getElementById('expenseInput').addEventListener('submit', saveExpense);
function saveExpense(e) {
let expenseName = document.getElementById('expenseNameInput').value,
expenseAmount = document.getElementById('expenseAmountInput').value;
let expenseStorage = {
name: expenseName,
amount: expenseAmount,
}
if (localStorage.getItem('expenses') == null) {
let expenses = [];
expenses.push(expenseStorage);
localStorage.setItem('expenses', JSON.stringify(expenses));
} else {
let expenses = JSON.parse(localStorage.getItem('expenses'));
expenses.push('expenseStorage');
localStorage.setItem('expenses', JSON.stringify(expenses));
}
document.getElementById('expenseInput').reset();
fetchExpense();
e.preventDefault();
}
function fetchExpense() {
let expenses = JSON.parse(localStorage.getItem('expenses')),
expensesList = document.getElementById('expensesList');
expensesList.innerHTML = '';
for (let i = 0; i < expenses.length; i++) {
let name = expenses[i].name,
amount = expenses[i].amount;
expensesList.innerHTML += '<div class="well" id="expense-item">' +
'<h3>' + name + '</h3>' +
'<h3>' + amount + '</h3>' +
'Delete' +
'</div>';
}
}
I'm rewriting code many times but it doesnt's work.

Try replacing expenses.push('expenseStorage') to expenses.push(expenseStorage).
So your code will look like this:
document.getElementById('expenseInput').addEventListener('submit', saveExpense);
function saveExpense(e) {
let expenseName = document.getElementById('expenseNameInput').value,
expenseAmount = document.getElementById('expenseAmountInput').value;
let expenseStorage = {
name: expenseName,
amount: expenseAmount,
}
if (localStorage.getItem('expenses') == null) {
let expenses = [];
expenses.push(expenseStorage);
localStorage.setItem('expenses', JSON.stringify(expenses));
} else {
let expenses = JSON.parse(localStorage.getItem('expenses'));
expenses.push(expenseStorage);
localStorage.setItem('expenses', JSON.stringify(expenses));
}
document.getElementById('expenseInput').reset();
fetchExpense();
e.preventDefault();
}
function fetchExpense() {
let expenses = JSON.parse(localStorage.getItem('expenses')),
expensesList = document.getElementById('expensesList');
expensesList.innerHTML = '';
for (let i = 0; i < expenses.length; i++) {
let name = expenses[i].name,
amount = expenses[i].amount;
expensesList.innerHTML += '<div class="well" id="expense-item">' +
'<h3>' + name + '</h3>' +
'<h3>' + amount + '</h3>' +
'Delete' +
'</div>';
}
}

How do I iterate nested API response in AJAX?

I'm trying to iterate a nested API response and display them inside a html. I managed to do single image because the response only have single value.
**API response **
{"result":{"totalResults":5861511,"products":[{"productTitle":"S-XL Plus Size Tunic Autumn <font><b>Women</b></font> Dresses Casual Cartoon Print Christmas Dress Casual Loose Long Sleeve Party Dress Vestidos","originalPrice":"US $7.98","imageUrl":"https://ae01.alicdn.com/kf/H3ba2899c892d4a88a5f704453c39942ae/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg","productUrl":"https://www.aliexpress.com/item/S-XL-Plus-Size-Tunic-Autumn-Women-Dresses-Casual-Cartoon-Print-Christmas-Dress-Casual-Loose-Long/4000353066650.html","allImageUrls":"https://ae01.alicdn.com/kf/H3ba2899c892d4a88a5f704453c39942ae/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/H218b19ee8bfc4f6ebe74b4297ca8395f5/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/H14b48746d6eb4d5788a7a9f6ce37195c7/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/Hb4b1f8b6223d4e7c88208751bfa681886/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/Hcfd17f95ac85470d9550d13f3683adc1I/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg}]},"errorCode":20010000,"currentPageNum":0,"totalPageNum":0}
main.js
$(function (){
var $orders = $('#orders');
var $productimage = $('#productimage');
var $output = $('#output');
$.ajax({
type: 'GET',
url: 'http://gw.api.alibaba.com/openapi/param2/2/portals.open/api.listPromotionProduct/9420?fields=productUrl,allImageUrls,imageUrl,originalPrice,productTitle&keywords=women',
success: function(orders){
$.each(orders, function(i, order){
$orders.append('' + order.products[0].productTitle + '');
$output.append(order.products[0].allImageUrls[1]);
// $productimage.append('<img class="pic-1" src="' + order.products[0].imageUrl + '">'); // single image
});
}
});
});
Result generated
"t"
How do you create a loop for $output from allImageUrls ?

You need to split the allImageUrls and then run them in a loop as follows:
var result ={
"result": {
"totalResults": 5861511,
"products": [
{
"productTitle": "S-XL Plus Size Tunic Autumn <font><b>Women</b></font> Dresses Casual Cartoon Print Christmas Dress Casual Loose Long Sleeve Party Dress Vestidos",
"originalPrice": "US $7.98",
"imageUrl": "https://ae01.alicdn.com/kf/H3ba2899c892d4a88a5f704453c39942ae/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg",
"productUrl": "https://www.aliexpress.com/item/S-XL-Plus-Size-Tunic-Autumn-Women-Dresses-Casual-Cartoon-Print-Christmas-Dress-Casual-Loose-Long/4000353066650.html",
"allImageUrls": "https://ae01.alicdn.com/kf/H3ba2899c892d4a88a5f704453c39942ae/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/H218b19ee8bfc4f6ebe74b4297ca8395f5/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/H14b48746d6eb4d5788a7a9f6ce37195c7/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/Hb4b1f8b6223d4e7c88208751bfa681886/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg,https://ae01.alicdn.com/kf/Hcfd17f95ac85470d9550d13f3683adc1I/S-XL-Plus-Size-Tunic-Autumn-font-b-Women-b-font-Dresses-Casual-Cartoon-Print-Christmas.jpg"
}
]
},
"errorCode": 20010000,
"currentPageNum": 0,
"totalPageNum": 0
}
var allImagesList = result.result.products[0].allImageUrls.split(',');
allImagesList.forEach((imageUrl)=>{
console.log(imageUrl);
})
And your code will look like something as below:
$(function (){
var $orders = $('#orders');
var $productimage = $('#productimage');
var $output = $('#output');
$.ajax({
type: 'GET',
url: 'http://gw.api.alibaba.com/openapi/param2/2/portals.open/api.listPromotionProduct/9420?fields=productUrl,allImageUrls,imageUrl,originalPrice,productTitle&keywords=women',
success: function(orders){
$.each(orders, function(i, order){
$orders.append('' + order.products[0].productTitle + '');
$output.append(order.products[0].allImageUrls[1]);
var allImagesList = order.products[0].allImageUrls.split(',');
allImagesList.forEach((imageUrl)=>{
$productimage.append('<img class="pic-1" src="' + imageUrl + '">'); // single image
})
});
}
});
});

$.each(orders, function(i, order) {
$orders.append('' + order.products[0].productTitle + '');
//------------------------Start
var allImageUrlsArray = []; // Create array;
//split with comma, assign to varaible and loop it.
allImageUrlsArray = order.products[0].allImageUrls.split(',');
for (var i = 0; i < allImageUrlsArray.length; i++) {
$output.append(allImageUrlsArray[i]);
}
//---------------------------End
});

You did some mistakes in iterate JSON Object, and allImageUrls contain multiple images with comma(,) so you should convert this into array. Let's check the below example
LN: 21 you can loop the allImageUrls
for([k, v] of Object.entries(value.allImageUrls)){
console.log(k, v);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="orders"></div>
<script>
$(function() {
var $orders = $('#orders');
var $productimage = $('#productimage');
var $output = $('#output');
$.ajax({
type: 'GET',
url: 'https://gw.api.alibaba.com/openapi/param2/2/portals.open/api.listPromotionProduct/9420?fields=productUrl,allImageUrls,imageUrl,originalPrice,productTitle&keywords=women',
success: function(item) {
let orders = item.result.products;
orders = orders.map(product => {
product.allImageUrls = product.allImageUrls.split(',');
return product;
});
var con = '';
for ([key, value] of Object.entries(orders)) {
con += "<li><a href='" + value.productUrl + "'><img style='width: 30px;' src='" + value.allImageUrls[0] + "'/>" + value.productTitle + "</a></li>";
// Loop all images
for ([k, v] of Object.entries(value.allImageUrls)) {
console.log(k, v);
}
}
$orders.append("<ul>" + con + "</ul>");
}
});
});
</script>

$(function() {
var $orders = $('#orders');
var $productimage = $('#productimage');
var $output = $('#output');
$.ajax({
type: 'GET',
url: 'http://gw.api.alibaba.com/openapi/param2/2/portals.open/api.listPromotionProduct/9420?fields=productUrl,allImageUrls,imageUrl,originalPrice,productTitle&keywords=women',
success: function(orders) {
$.each(orders.result.products, function(i, order) {
console.log(order)
$div = $('<div id = "' + "order_" + i + '"></div>');
$imageDiv = $('<div id = "' + "image_" + i + '"></div>');
// = $('#order_' + i);
console.log($div)
$div.append('' + order.productTitle + '');
//;
var array = order.allImageUrls.split(',');
for (var j = 0; j < array.length; j++) {
//$output.append(order.allImageUrls[j]);
$imageDiv.append('<img style="width:50px;height:50px" class="pic-1" src="' + array[j] + '">'); // single image
}
$div.append($imageDiv);
$orders.append($div);
});
}
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div id="output">
<div id="orders">
</div>
</div>
Hope this helps. :)

How to convert the values in an array to strings and send to php?

I have a javascript file here.What it does is,when a user selects seats accordings to his preference in a theater layout,the selected seats are stored in an array named "seat".This code works fine until function where the selected seats are shown in a window alert.But from there onwards,the code doesn't seem to do anything.
After the above window alert, I've tried to serialize the above array and send it to the "confirm.php" file.But it does not show anything when echoed the seats.
Here is the js code.
<script type="text/javascript">
$(function () {
var settings = {
rows: 6,
cols: 15,
rowCssPrefix: 'row-',
colCssPrefix: 'col-',
seatWidth: 80,
seatHeight: 80,
seatCss: 'seat',
selectedSeatCss: 'selectedSeat',
selectingSeatCss: 'selectingSeat'
};
var init = function (reservedSeat) {
var seat = [], seatNo, className;
for (i = 0; i < settings.rows; i++) {
for (j = 0; j < settings.cols; j++) {
seatNo = (i + j * settings.rows + 1);
className = settings.seatCss + ' ' + settings.rowCssPrefix + i.toString() + ' ' + settings.colCssPrefix + j.toString();
if ($.isArray(reservedSeat) && $.inArray(seatNo, reservedSeat) != -1) {
className += ' ' + settings.selectedSeatCss;
}
seat.push('<li class="' + className + '"' +
'style="top:' + (i * settings.seatHeight).toString() + 'px;left:' + (j * settings.seatWidth).toString() + 'px">' +
'<a title="' + seatNo + '">' + seatNo + '</a>' +
'</li>');
}
}
$('#place').html(seat.join(''));
};
var jArray = <?= json_encode($seats) ?>;
init(jArray);
$('.' + settings.seatCss).click(function () {
if ($(this).hasClass(settings.selectedSeatCss)) {
alert('This seat is already reserved!');
} else {
$(this).toggleClass(settings.selectingSeatCss);
}
});
$('#btnShowNew').click(function () {
var seat = [], item;
$.each($('#place li.' + settings.selectingSeatCss + ' a'), function (index, value) {
item = $(this).attr('title');
seat.push(item);
});
window.alert(seat);
});
$('#btnsubmit').click(function () {
var seat = [], item;
$.each($('#place li.' + settings.selectingSeatCss + ' a'), function (index, value) {
item = $(this).attr('title');
seat.push(item);
var seatar = JSON.stringify(seat);
$.ajax({
method: "POST",
url: "confirm.php",
data: {data: seatar}
});
});
});
});
</script>
Can somebody help me figure it out what's wrong in here?

Please Add content type as json.
$.ajax({
method: "POST",
url: "confirm.php",
contentType: "application/json"
data: {data: seatar}
});
For testing you can print file_get_contents('php://input') as this works regardless of content type.

Optimize list selected

I have gallery into my project, when page loads it charge all upload images and categories like these:
As you can see, It suit images depending of selected categories. The problem is the page going to slow because it loads all images... How can I do to optimize these process? I think some like delete All categorie, but I don´t know how to do my query to start for example with office categorie filter
There is my code:
function GalleryCatPopulate(url, listname, target) {
var eng = false;
if ((window.location.href.indexOf("lang=en") > 0)) {
eng = true;
}
// Getting our list items
$.ajax({
url: url + "/_api/web/lists/getbytitle('" + listname + "')/items? $select=Title,English",
method: "GET",
headers: { "Accept": "application/json; odata=verbose" },
success: function (data) {
completeGalleryCat(data, target, eng);
},
error: function (data) {
failureGalleryCat(data, target);
}
});
}
function completeGalleryCat(data, target, eng) {
var items = data.d.results;
var prefix = "";
var sufix = "<div class='clear'></div>";
if (eng)
prefix = "<div class='filter selected' data-category='cat-all'>All</div>";
else
prefix = "<div class='filter selected' data-category='cat-all'>Todas</div>";
var menu = "";
var cat = "";
var title = "Transporte de Materiales";
console.log(title.replace(/\s/g, "_").replace(/[^\w\s]/gi, ''));
for (var item in items) {
if (eng)
cat = items[item].English;
else
cat = items[item].Title;
menu += "<div class='filter' data-category='" + cat.replace(/\s/g, "_").replace(/[^\w\s]/gi, '') +"'>"+ cat +"</div>";
}
$(target).html(prefix + menu + sufix);
}
function failureGalleryCat(data, target) {
$(target).text("There is something bad wit load images, please check console");
}
function GalleryContentPopulate(url, listname, target) {
var eng = false;
var queryGallery = "$select=Title,Description,Enlace,EncodedAbsUrl,Categoria/Title&$expand=Categoria/Title";
if ((window.location.href.indexOf("lang=en") > 0)) {
queryGallery = "$select=TitleEnglish,DescriptionEnglish,Enlace,EncodedAbsUrl,Categoria/English&$expand=Categoria/English";
eng = true;
}
// Getting our list items
$.ajax({
url: url + "/_api/web/lists/getbytitle('" + listname + "')/items?$top=1000&" + queryGallery,
method: "GET",
headers: { "Accept": "application/json; odata=verbose" },
success: function (data) {
completeGalleryContent(data, target, eng);
},
error: function (data) {
failureGalleryContent(data, target);
}
});
}
function completeGalleryContent(data, target, eng) {
var items = data.d.results;
console.log(items);
var menu = "";
var cat = "";
for (var item in items) {
if(items[item].DescriptionEnglish==null)
items[item].DescriptionEnglish="";
if(items[item].Description==null)
items[item].Description="";
if(items[item].Categoria.results!= null && items[item].Categoria.results!= undefined && items[item].Categoria.results.length > 0){
cat =setCategories(eng,items[item].Categoria.results);
}
if (eng){
menu += "<div class='mega-entry " + cat + " cat-all' id='mega-entry-1' data-src='" + items[item].EncodedAbsUrl + "' data-width='' data-height='' data-lowsize=''><div class='mega-covercaption mega-square-bottom mega-landscape-right mega-portrait-bottom mega-red'><div class='mega-title'>" + items[item].TitleEnglish + "</div><p>" + items[item].DescriptionEnglish + "</p></div><div class='mega-coverbuttons'><div class='mega-link mega-red'></div><a class='fancybox' rel='group' href='" + items[item].EncodedAbsUrl + "' title='" + items[item].TitleEnglish + "'><div class='mega-view mega-red'></div></a></div> </div>";
}else{
menu += "<div class='mega-entry "+ cat + " cat-all' id='mega-entry-1' data-src='" + items[item].EncodedAbsUrl + "' data-width='' data-height='' data-lowsize=''><div class='mega-covercaption mega-square-bottom mega-landscape-right mega-portrait-bottom mega-red'><div class='mega-title'>" + items[item].Title + "</div><p>" + items[item].Description + "</p></div><div class='mega-coverbuttons'><div class='mega-link mega-red'></div><a class='fancybox' rel='group' href='" + items[item].EncodedAbsUrl + "' title='"+ items[item].Title +"'><div class='mega-view mega-red'></div></a></div></div>";
}
}
$(target).html(menu);
var api = $(target).megafoliopro(
{
filterChangeAnimation: "pagebottom", // fade, rotate, scale, rotatescale, pagetop, pagebottom,pagemiddle
filterChangeSpeed: 400, // Speed of Transition
filterChangeRotate: 99, // If you ue scalerotate or rotate you can set the rotation (99 = random !!)
filterChangeScale: 0.6, // Scale Animation Endparameter
delay: 20,
defaultWidth: 980,
paddingHorizontal: 10,
paddingVertical: 10,
layoutarray: [9, 11, 5, 3, 7, 12, 4, 6, 13] // Defines the Layout Types which can be used in the Gallery. 2-9 or "random". You can define more than one, like {5,2,6,4} where the first items will be orderd in layout 5, the next comming items in layout 2, the next comming items in layout 6 etc... You can use also simple {9} then all item ordered in Layout 9 type.
});
//console.log("entra");
// FANCY BOX ( LIVE BOX) WITH MEDIA SUPPORT
jQuery(".fancybox").fancybox();
//console.log("sale");
// THE FILTER FUNCTION
$('.filter').click(function () {
$('.filter').each(function () { jQuery(this).removeClass("selected") });
api.megafilter(jQuery(this).data('category'));
$(this).addClass("selected");
});
var categorySelected = getParameterByName("Category");
$("div[data-category='"+categorySelected +"']").click();
}
function failureGalleryContent(data, target) {
console.log(data);
$(target).text("Error loading parallax. Please check console for more info");
}
function getParameterByName(name) {
name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}
function setCategories(boolLang, objResult){
var cat ="";
for(var item in objResult){
if(boolLang)
cat += replaceAll(" ", "_",objResult[item].English.replace(/[^\w\s]/gi, '')) + ' ';
else
cat += replaceAll(" ", "_",objResult[item].Title.replace(/[^\w\s]/gi, '')) + ' ';
}
return cat;
}
function replaceAll( find, replace,string) {
return string.replace(new RegExp(escapeRegExp(find), 'g'), replace);
}
function escapeRegExp(string) {
return string.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
}
Thankyou in advance!

How to put result into DIV from JSON?

From the below function I am getting results. Now I want to put that result into a div. So how should I put the result into a div?
$(document).ready(function () {
$.ajax({
type: "POST",
url: "../ajaxaction.php",
data: {
action: 'alllist'
},
dataType: 'json',
success: function (msg) {
for (var i = 0; i < msg.length; i++) {
var uname = msg[i].user_name;
var vtitle = msg[i].video_title;
var vid = msg[i].video_id;
var vthumb = msg[i].video_thumb;
}
}
});
});

You can append the result in to div with the format you like but a simple way of adding would be. You can use append() function to keep the added html with new html for each iteration of loop.
success: function(msg){
for (var i = 0; i < msg.length; i++) {
var uname = msg[i].user_name;
var vtitle = msg[i].video_title;
var vid = msg[i].video_id;
var vthumb = msg[i].video_thumb;
$('#divId').append("Name: " + uname + "," + "Title: " + vtitle +
"Id: " + vid + "," + "Thumb: " + vthumb + "<br />");
}

$(document).ready(function() {
$.ajax({
type: "POST",
url: "../ajaxaction.php",
data: { action:'alllist'},
dataType: 'json',
success: function(msg){
for (var i = 0; i < msg.length; i++) {
var uname = msg[i].user_name;
var vtitle = msg[i].video_title;
var vid = msg[i].video_id;
var vthumb = msg[i].video_thumb;
$("#container").html("Username: " + uname + "<br />Video Title: " + vtitle + "<br />Vide ID: " + vid + "<br />Video Thumb: " + vthumb);
}
}});
});

If your div exists:
jQuery('div selector').append(uname+' '+vtitle+...whatever variable and format);
If not
jQuery('element selector to put the div in').append('<div id="aID" class="some classes">'+uname+' '+vtitle+...whatever variable and format...+'</div>');

you can do this:
success: function(msg){
$.each(msg, function(i, item){
$('#divid').html('User Name : '+item.user_name+
'Video title : '+item.video_title+
'Video Id : 'item.video_id+
'Video Thumb : 'item.video_thumb );
});
}