Develop Reference

Appending data fetched by an AJAX call to an already existing list in UI & saving the data fetched to the already saved list in localstorage

I have a page in which I have to show list of data in UI through ajax & append the list data in html table save that list data into Local Storage with Jquery, My question is that I want to implement lazy load in UI such that user clicks a button (Click to view more list), and after clicking the button the ajax calls another list with limit & offset to show more list & append the new list below the existing list in UI and also save the data into local storage along with the existing data present.
My Ajax Call for List Data
var sendingData = {
limit: "50000",
offset: "0"
};
$.ajax({
type: 'POST',
url: "/Common/Item/getselleritems?SellerId=" + userid,
data: sendingData ,
crossDomain: true,
success: function (data)
{
localStorage.setItem("productCode", JSON.stringify(data));
},
error()
{
//Do something
}
});
``
My Html design Function
function showProducts()
{
var productsStorage = localStorage.getItem("productCode");
var products = JSON.parse(productsStorage);
var trHTML = '';
$("table tbody").html("");
$.each(products.Data, function (key, value)
{
trHTML += '<tr>'
+ '<td class="d-md-flex align-items-center">' + '<figure style="' + imgStyle + '"><a href="" title="Photo title" data-effect="mfp-zoom-in">' +
'<img src="' + imgSrc + '" alt="thumb" class="lazy"></a></figure>' +
'<div class="flex-md-column">' +
'<h4 class="package_name" id="itemdescription_' + value.Id + '" onclick = "packageDetails(\'' + value.Price + '\',\'' + value.Name + '\',\'' + value.Description
+ '\',\'' + itemTimeSlotType + '\',\'' + value.ServiceName + '\',\'' + value.PreparationTime + '\',\'' + value.Quantity + '\')" >' +
'<i class="icon_box-selected" style="' + style + '; margin-right:3px"></i>' +
value.Name + '</h4>' +
'<p>' + value.Description + '</p>' +
'<em>' + "Available In: " + itemTimeSlotType + '</em>' + '<br>' +
'<span class="stars_sellerItem" style="' + starStyle + '">' + value.FoodtestAvgRating + ' <i class="icon_star"> </i> ' +
'</span>' +
'</div>' +
'</td>' + '<td style="padding: 0.75rem 0 0.75rem 0;">' +
'<strong id="itemprice_' + value.Id + '">' +
'<i class="fa fa-inr" aria-hidden="true"></i>' + value.Price +
'</strong>' +
'</td>' +
'<td class="options">' +
'<div class="dropdown dropdown-options">' +
'<i class="icon_plus_alt2"></i>' +
'<div class="numbers-row number" id="item2_' + value.Id + '" data-id="' + value.Id + '">' +
'<input type="text" value="1" class="form-control" name="quantity" id="itemvalue_' + value.Id + '" onchange="getval(' + itemId + ');" readonly>' +
'<div class="inc button_inc plus">' + '+' + '</div><div class="dec button_inc minus">' + '-' + '</div>' + '</div>' +
'</td>' + '</tr>';
}
$("table tbody").append(trHTML);
}

Doubleclick event not working in mobile browser view

i created a double click event on a div , when i click twice a heart react appears on top of the image , on the web browser vue it works fine but when i pressed F12 and switched to mobile view it didn't work
here is my javascript function :
$(document).on("dblclick", '#tesst', function (e) {
var heart = $(this).find("i");
heart.fadeIn("slow");
setTimeout(function () {
heart.fadeOut("slow");
}, 2000);
heartReact();
});
here is my div :
stringMsg =
'<div class="/col-lg-4 delcd-tours animate-box/">' +
'<div id="tesst" class="hot-img-container" >' +
'<a href="#">' +
'<div class="instagram">' +
'<i id="heart" class="fa fa-heart">' + '</i>' +
'<img src="" id="myImgTag' + element.id_publication + '" class="img-fluid" alt="" />' +
'</div>' +
"</a>" +
'<div class="desc">' +
"<span>" +
"</span>" +
"<h3>" +
element.pays +
"</h3>" +
"<span>" +
"</span>" +
'<span class="price">' +
element.budget +
"</span>" +
'<a class="btn btn-primary btn-outline" href="tour-detail.html">' +
"View Trip" +
'<i class="icon-arrow-right22">' +
"</i>" +
"</a>" +
"</div>" +
"</div>" +
"</div>";
document.getElementById("pubslist").innerHTML += stringMsg;
document.getElementById("myImgTag" + element.id_publication).src = element.imagePub;
is there any solution for this problem to make it work on both web and mobile view

Duplicate item appearing in DIV

I have a problem with my code. I am pushing items into a new array and displaying two of them in a DIV. For some reason its showing the same item twice rather than showing two separate items. Hoping someone can help me out with this. I just need a way to prevent the same recipe from being able to show twice in the DIV.
var categoryItems = [];
var recipeTitle = $('#recipeTitle').text();
$.each(recipe_data, function(i, item){
if (item.recipeCategory == "4" && recipeTitle !== item.recipeName) { categoryItems.push(item); }
});
var similarRecipe = '';
var randomRecipe = {};
randomRecipe = categoryItems[Math.floor(Math.random()*categoryItems.length)];
for(var i = 0; i < categoryItems.length; i += 2) {
similarRecipe = [ '<div class="col-md-6 col-sm-6 img-margin">' + ' <div class="addthis_inline_share_toolbox" data-url="' + randomRecipe.recipePageURL +'" data-title="' + randomRecipe.recipeName + '"></div>'
+ '' + '<img class="img-responsive" src="' + randomRecipe.recipeImageCategoryURL + '">' + ''
+ '' + '<h3 class="recipeSubCategoryImgCaption">' + randomRecipe.recipeName + '</h3>' + '' + '</div>' ];
$('#recipeSimilar').append(similarRecipe);
}
Edit: Please take a look at this fiddle for an example. It should not show the same recipe twice when refreshing, rather show two different recipes from the category. My problem is that is is sometimes it is showing the same one twice when you refresh. https://jsfiddle.net/wn4fmm5r/

you are generating one random Recipe and displaying same twice into your for loop
randomRecipe = categoryItems[Math.floor(Math.random()*categoryItems.length)];
for(var i = 0; i < categoryItems.length; i += 2) {
similarRecipe = [ '<div class="col-md-6 col-sm-6 img-margin">' + ' <div class="addthis_inline_share_toolbox" data-url="' + randomRecipe.recipePageURL +'" data-title="' + randomRecipe.recipeName + '"></div>'
+ '' + '<img class="img-responsive" src="' + randomRecipe.recipeImageCategoryURL + '">' + ''
+ '' + '<h3 class="recipeSubCategoryImgCaption">' + randomRecipe.recipeName + '</h3>' + '' + '</div>' ];
$('#recipeSimilar').append(similarRecipe);
}
try including your statement for generating random recipe inside loop.
for(var i = 0; i < categoryItems.length; i += 2) {
randomRecipe = categoryItems[Math.floor(Math.random()*categoryItems.length)];
similarRecipe = [ '<div class="col-md-6 col-sm-6 img-margin">' + ' <div class="addthis_inline_share_toolbox" data-url="' + randomRecipe.recipePageURL +'" data-title="' + randomRecipe.recipeName + '"></div>'
+ '' + '<img class="img-responsive" src="' + randomRecipe.recipeImageCategoryURL + '">' + ''
+ '' + '<h3 class="recipeSubCategoryImgCaption">' + randomRecipe.recipeName + '</h3>' + '' + '</div>' ];
$('#recipeSimilar').append(similarRecipe);
}
Edit for no repeating ----
var counter;
for (var i = 0; i < categoryItems.length; i += 2) {
var item = Math.floor(Math.random() * categoryItems.length);
if (!counter) {
counter = item;
} else {
if (counter == item) {
item = Math.floor(Math.random() * categoryItems.length);
counter = item;
}
}
randomRecipe = categoryItems[item];
similarRecipe = ['<div class="col-md-6 col-sm-6 img-margin">' + ' <div class="addthis_inline_share_toolbox" data-url="' + randomRecipe.recipePageURL + '" data-title="' + randomRecipe.recipeName + '"></div>'
+ '' + '<img class="img-responsive" src="' + randomRecipe.recipeImageCategoryURL + '">' + ''
+ '' + '<h3 class="recipeSubCategoryImgCaption">' + randomRecipe.recipeName + '</h3>' + '' + '</div>'];
$('#recipeSimilar').append(similarRecipe);
}

Unable to scroll after append

I am trying to fetch data from json file and then attach the data as listitem in a unordered list.
So its getting listed successfully, but I cannot scroll again through it.
Here is how my Javascript looks like:
function ListViewData(allpost) {
allposts = allpost;
$.each(allpost.posts, function (i, row) {
if (row.thumbnail_images) {
$(".list__container").append('<li class="list__item list__item--tappable list__item__line-height list-item-container">' +
'<div class="list-item-main">' +
'<div class="list-item-left">' +
'<img src="' + row.thumbnail_images['full'].url + '" class="thumbnail" width="80" height="80">' +
'</div>' +
'<div class="list-item-right">' +
'<div class="list-item-content">' +
'<span class="list-item-name">' + row.title + ' ' +
'<br/>' +
'<span class="lucent">' +
'<i class="fa fa-map-marker"></i> Paris, France' +
'</span>' +
'</span>' +
'<br/>' +
'<span class="list-item-text" style="margin-top:16px;">Eiffel Tower is the symbol of Paris and named by Gustave Eiffel.' +
'</span>' +
'</div>' +
'</div>' +
'</div>' +
'<span class="list-item-action" >' +
'<i class="fa fa-angle-right"></i>' +
'</span>' +
'</li>');
}
$(".list__container").listview();
});
$('.list__container').animate({
scrollTop: $('.list__container').prop("scrollHeight")
}, 500);
}
and here is how my HTML code looks like:
<div class="list list-top">
<ul class="list__container">
//here append data comes in place
</ul>
</div>

Instead of
$('.list__container').animate({
scrollTop: $('.list__container').prop("scrollHeight")
}, 500);
Try
$("html,body").animate({
scrollTop: $('.list__container').prop("scrollHeight")
}, 500);

Uncaught Syntax Error: Unexpected Token }

Yes, that's a chrome's console error that pops up on a click of a button. I think that these errors occur on the basis of the markup but then that's awkward because markup errors should directly come up when the page is loaded but this error comes up on the click of a button.
Here's the important HTML for this question:
<div class="container-fluid">
<script>
var offers = <? php echo PostOffer::GetOffers($_GET["id"]); ?> ;
for (var i = 0; i < offers.length; i++) {
var date = offers[i].Date.split(" ");
document.write('<div class="row-fluid offer">' +
'<div class="span2">' +
'<img class="profile_picture" src="' + offers[i].Picture_Path + '" />' +
'</div>' +
'<div class="span10">' +
'<div class="row-fluid">' +
'<div class="username">' +
'<p style="font-weight: bold;">' + offers[i].Name + '</p>' +
'</div>' +
'</div>' +
'<div class="row-fluid">' +
'<div class="content">' +
'<p class="content">' + offers[i].Text + '</p>' +
'<textarea class="hide span12" id="edited_content">' + offers[i].Text + '</textarea>' +
'<button type="button" class="hide btn btn-primary btn-small" id="save_edits" onclick="editPostOffer("<?php echo $_GET["id"]; ?>", ' + offers[i].Offer_ID + ', "aaaaaaaaa")">Save Edits</button> ' +
'<button type="button" class="hide btn btn-primary btn-small cancel_edits">Cancel Edits</button>' +
'</div>' +
'</div>' +
'<div class="row-fluid">' +
'<div class="date">' +
'<p class="pull-right"><strong><span class="muted">Offered on: </span></strong>' + date[0] + '</p>' +
'</div>');
if (offers[i].Username == "<?php echo $_SESSION["
username "]; ?>") {
document.write('<div class="controls pull-right">' +
'Edit ' +
'Delete | ' +
'</div>');
}
document.write('</div>' +
'</div>' +
'</div>' +
'<hr />');
}
</script>
</div>
JS:
$.post("admin/post_offer/edit_post_offer.php", { id: offer_id, text: edited_content }, function (data) {
if (data.status == "success") {
console.log("A");
}
}, 'json');
Can you tell me why that's happening?