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Avoid selected variation calculated price to be reflected in Woocommerce related products

This question is based on Get selected variation price in jQuery on Woocommerce Variable products.
I have some code that works on the single product page to display a calculated price based on user input. The problem is that the calculated price also applies to the related products on the bottom of the page. Their price is set to be the same as the product being viewed.
I think the problem lies in the line $('.price').html(total_pris+',-'); where '.price' applies to the related products also. How do I fix this?
My code:
add_action( 'woocommerce_before_add_to_cart_quantity', 'func_option_valgt'
);
function func_option_valgt() {
global $product;
if (has_term('endene','product_cat')){
$variations_data =[]; // Initializing
// Loop through variations data
foreach($product->get_available_variations() as $variation ) {
// Set for each variation ID the corresponding price in the data array (to be used in jQuery)
$variations_data[$variation['variation_id']] = $variation['display_price'];
}
?>
<script>
jQuery(function($) {
var jsonData = <?php echo json_encode($variations_data); ?>,
inputVID = 'input.variation_id';
$('input , #id_dropdown_one_end, #id_dropdown_other_end').change( function(){
if( '' != $(inputVID).val() ) {
var vid = $(inputVID).val(), // VARIATION ID
length = $('#rope_length').val(), // LENGTH
diameter = $('#diameter').val(), // DIAMETER
ene_enden = $('#id_dropdown_one_end').find('option:selected').attr("value_one_end"),
andre_enden = $('#id_dropdown_other_end').find('option:selected').attr("value_other_end"),
vprice = ''; // Initilizing
// Loop through variation IDs / Prices pairs
$.each( jsonData, function( index, price ) {
if( index == $(inputVID).val() ) {
vprice = price; // The right variation price
var ene_enden_conv = Number(ene_enden);
var andre_enden_conv = Number(andre_enden);
var rope_price = (length*vprice) + ene_enden_conv + andre_enden_conv;
var total_pris = rope_price;
if (rope_price != 0){
$('.price').html(total_pris+',-');
}
}
});
}
});
});
</script>
<?php
}
}

To avoid updating related product prices too, you just need to make a little change replacing:
$('.price').html(total_pris+',-');
by:
$('.woocommerce-variation-price > .price').html(total_pris+',-');
This should solve your problem.

How do I make a standalone repeating jQuery function

I have been working on a filter function in jQuery for a simple unordered list. Each list is inside a block with a filter that can be modified in the back-end (Wordpress) to filter out specific strings. The filter also has a reset button to set it back to the original state.
Now I've been asked to make this a repeatable list. Repeating the list itself wasn't a problem but the filter now filters out items in all existing lists.
So the filter does work but it gets a bit overexcited filtering out all elements that have the class filter-list_item. I thought adding a number to the class on the parent div on each loop and then adding a for loop in jQuery to target these specific classes would fix this. Hence the $list_count and listCount variables. This however does the exact same thing and still affects all lists. I'm not sure why. Any help on how to make it so that the filters only filter out items in their corresponding lists would be much appreciated.
This is the current jQuery for the filter function:
$(document).ready(function (){
// Content filter
var lists = $(".filter-list").length;
for(var listCount = 0; listCount < lists; ) {
$(".filter-list-"+listCount).find(".content-filter").change(function() {
// Retrieve the option value and reset the count to zero
var search = $(this).val(), count = 0;
$(".filter-list_item").each(function(){
// Remove item if it does not match the value
var string = this.innerText;
var found = strSearch(search.toLowerCase(), string.toLowerCase());
if (found) {
$(this).css("display", "block");
// Show the list item if the value matches and increase the count by 1
count++;
} else {
$(this).css("display", "none");
}
// Show reset button
if($(this).index() > 0) {
$(".filter-reset").addClass("active");
}
});
// Update the count
if(count == 0) {
$(".filter-select-results").text("No results for " +search);
} else if(count > 0) {
$(".filter-select-results").text('');
}
});
// Reset filter
$(".filter-reset").click(function() {
$(".content-filter").prop('selectedIndex',0);
$(".filter-list_item").css("display", "block");
$(".filter-reset").removeClass("active");
$(".filter-select-results").text('');
});
listCount++;
}
});
// Search function
function strSearch(search, string) {
var n = string.search(search);
if(n >= 0) {
return true;
}
return false;
}
And this is the PHP used to build the lists
<?php
$list_count = 0;
foreach ($layout['list'] as $list) { ?>
<div class="container filter-list filter-list-<?php echo $list_count++; ?>">
<div class="title-wrapper">
<h2><?php echo $list['title']; ?></h2>
<?php echo $list['description'];
// Content filter
if($list['content_filter'] == true) { ?>
<div class="filter-container">
<button class="filter-reset"><i class="fa-icon fa fa-undo"></i></button>
<select class="content-filter" name="filterselect">
<option value="all" disabled selected>Selecteer een locatie</option>
<?php foreach($list['filter_options'] as $filter) { ?>
<option value="<?php echo $filter['option']; ?>"><?php echo $filter['option']; ?></option>
<?php } ?>
</select>
</div>
<?php } ?>
</div>
<div class="filter-select-results"></div>
<ul class="filter-list_items">
<?php foreach($list['list_items'] as $list_item) { ?>
<?php if( $list_item['link'] ) { ?>
<li class="filter-list_item"><?php echo $list_item['item']; ?></li>
<?php } else { ?>
<li class="filter-list_item">
<span><?php echo $list_item['item']; ?></span>
</li>
<?php } ?>
<?php } ?>
</ul>
</div>

Replace $(".filter-list_item").each(function(){ with $(this).closest(".filter-list").find(".filter-list_item").each(function(){
This is assuming .content-filter-element is part of a .filter-list. closest then navigates to the first parent satisfying the condition. Whether that condition holds is a bit unclear from the php code you showed.

Javascript or Jquery / PHP / Web Socket number formatting issue

I'm modifying one script and learning JS and Web Sockets while changing it to my needs.
Script is a simple calculator between BTC and USD.
Code works fine, but I cant get proper number formatting since I'm not certain should I do it in JS or PHP.
HTML
<input type="text" class="form-control" id="amtUSD" value="<?php echo $data['price_usd']; ?>">
JS
var ember = [];
var usdInput = document.getElementById("amtUSD");
var btcInput = document.getElementById("amtBTC");
ember.btcPrice = <?php echo $data['price_usd']; ?>;
ember.socket = io.connect('https://socket.coincap.io');
ember.socket.on('trades', function(data) {
var amt = document.getElementById("amtUSD");
if (data.coin == "BTC") {
ember.amtUSD = usdInput.value;
ember.amtBTC = btcInput.value;
ember.usdCalc = ember.amtBTC * data.msg.price;
if(data.msg.price > amt.value) {
$(amt).addClass('increment');
} else {
$(amt).addClass('decrement');
}
$("#amtUSD").attr("value", ember.usdCalc);
setTimeout(function () {
$(amt).removeClass('increment decrement');
}, 700);
}
});
$("#amtBTC").bind("change paste keyup", function() {
ember.usdCalc = $(this).val() * ember.btcPrice;
$("#amtUSD").attr("value", ember.usdCalc);
});
I tried with PHP. It works for the first value, but as soon as it gets new value, it reverts to non formatted value.
<?php echo number_format($data['price_usd'], 2); ?>
So, I presume I need to format numbers in JS or Jquery - it doesnt matter for this case, whichever is simpler.
Thanks in advance

Creating multiple select populated by js array

Ok this is a bit complicated. Basically I populate a select with an array. Then, I want to create another select, and populate it with the same array again. I believe that the populate function is not called properly when a new select is created, but I cannot find when to call it, to populate the created select.
1st: I query my db to get some member names, and use json_encode my resulting array, to create a json array.
$result_array = Array();
while($stmt->fetch()) {
$result_array[] = $name;
}
$json_array = json_encode($result_array);
then I echo that array to a javascript array, and populate a select tag with the result. All this happens on window load.
<script>
var members = <?php echo $json_array; ?>;
function populate()
{
var sel = document.getElementById('members');
var fragment = document.createDocumentFragment();
members.forEach(function(member, index) {
var opt = document.createElement('option');
opt.innerHTML = member;
opt.value = member;
fragment.appendChild(opt);
});
sel.appendChild(fragment);
}
window.onload = populate;
</script>
The html div containing the select:
<div id="Members">
<select id="members"></select>
</div>
<input type="button" value="+" onClick="addInput('Members'); populate();">
and then I use another script to create more divs
<script>
var counter = 1;
var limit = 3;
function addInput(divName)
{
if (counter == limit)
{
var message = document.getElementById("linkLimit");
message.innerHTML = "Maximum amount of links reached";
}
else
{
var newdiv = document.createElement('div');
newdiv.innerHTML = "<select id='members'></select>";
document.getElementById(divName).appendChild(newdiv);
counter++;
}
}
</script>
However, the resulting selects are never actually populated. I believe that the populate function is not called properly, but I cannot find when to call it, to populate the created select.
Alternatively, for a static amount of select inputs, I tried doing
<div id="Members">
<select id="members" name="members"></select>
<select id="members1" name="members"></select>
<select id="members2" name="members"></select>
</div>
but again, only the first select is populated
By using a for loop and giving members, members1, members2 through an array, all three lists are populated, however, this is not so functional, since I can't know how many members the user will want to select

Fast filter in a list of records with JavaScript

I have a list with about 10 000 customers on a web page and need to be able to search within this list for matching input. It works with some delay and I'm looking for the ways how to improve performance. Here is simplified example of HTML and JavaScript I use:
<input id="filter" type="text" />
<input id="search" type="button" value="Search" />
<div id="customers">
<div class='customer-wrapper'>
<div class='customer-info'>
...
</div>
</div>
...
</div>
<script type="text/javascript">
$(document).ready(function() {
$("#search").on("click", function() {
var filter = $("#filter").val().trim().toLowerCase();
FilterCustomers(filter);
});
});
function FilterCustomers(filter) {
if (filter == "") {
$(".customer-wrapper").show();
return;
}
$(".customer-info").each(function() {
if ($(this).html().toLowerCase().indexOf(filter) >= 0) {
$(this).parent().show();
} else {
$(this).parent().hide();
}
});
}
</script>
The problem is that when I click on Search button, there is a quite long delay until I get list with matched results. Are there some better ways to filter list?

1) DOM manipulation is usually slow, especially when you're appending new elements. Put all your html into a variable and append it, that results in one DOM operation and is much faster than do it for each element
function LoadCustomers() {
var count = 10000;
var customerHtml = "";
for (var i = 0; i < count; i++) {
var name = GetRandomName() + " " + GetRandomName();
customerHtml += "<div class='customer-info'>" + name + "</div>";
}
$("#customers").append(customerHtml);
}
2) jQuery.each() is slow, use for loop instead
function FilterCustomers(filter) {
var customers = $('.customer-info').get();
var length = customers.length;
var customer = null;
var i = 0;
var applyFilter = false;
if (filter.length > 0) {
applyFilter = true;
}
for (i; i < length; i++) {
customer = customers[i];
if (applyFilter && customer.innerHTML.toLowerCase().indexOf(filter) < 0) {
$(customer).addClass('hidden');
} else {
$(customer).removeClass('hidden');
}
}
}
Example: http://jsfiddle.net/29ubpjgk/

Thanks to all your answers and comments, I've come at least to solution with satisfied results of performance. I've cleaned up redundant wrappers and made grouped showing/hiding of elements in a list instead of doing separately for each element. Here is how filtering looks now:
function FilterCustomers(filter) {
if (filter == "") {
$(".customer-info").show();
} else {
$(".customer-info").hide();
$(".customer-info").removeClass("visible");
$(".customer-info").each(function() {
if ($(this).html().toLowerCase().indexOf(filter) >= 0) {
$(this).addClass("visible");
}
});
$(".customer-info.visible").show();
}
}
And an test example http://jsfiddle.net/vtds899r/

The problem is that you are iterating the records, and having 10000 it can be very slow, so my suggestion is to change slightly the structure, so you won't have to iterate:
Define all the css features of the list on customer-wrapper
class and make it the parent div of all the list elements.
When your ajax request add an element, create a variable containing the name replacing spaces for underscores, let's call it underscore_name.
Add the name to the list as:
var customerHtml = "<div id='"+underscore_name+'>" + name + "</div>";
Each element of the list will have an unique id that will be "almost" the same as the name, and all the elements of the list will be on the same level under customer-wrapper class.
For the search you can take the user input replace spaces for underscores and put in in a variable, for example searchable_id, and using Jquery:
$('#'+searchable_id).siblings().hide();
siblings will hide the other elements on the same level as searchable_id.
The only problem that it could have is if there is a case of two or more repeated names, because it will try to create two or more divs with the same id.
You can check a simple implementation on http://jsfiddle.net/mqpsppxm/
​