let addonCheckboxes = document.querySelectorAll(".custom-checkbox")
let priceSection = document.getElementById("priceSection")
let customProductPricing = document.getElementById("customProductPricing")
for (let i = 0; i < addonCheckboxes.length; i++) {
addonCheckboxes[i].addEventListener("change", function() {
if (addonCheckboxes[i].checked != false) {
priceSection.textContent = parseInt(customProductPricing) + parseInt(addonCheckboxes[i].getAttribute("price"));
} else {
priceSection.textContent = parseInt(customProductPricing)
}
})
}<input class="custom-checkbox" type="checkbox" price="150"></input>
<input class="custom-checkbox" type="checkbox" price="150"></input>
<input class="custom-checkbox" type="checkbox" price="150"></input>
<div id="priceSection">
</id>
<div id="customProductPricing">"150"</div>I want to get the total of all the checkboxes if they are all checked. So far it gives only one value. And need to deduct the prices if the checkbox is unchecked.
This one has fixed all the errors you made in your markup, and simplified the code by alot.
const output = document.getElementById('priceSection');
const totalPrice = () => [...document.querySelectorAll('#prices input[type=checkbox]:checked')]
.reduce((acc, {
dataset: {
price
}
}) => acc + +price, 0);
document.getElementById('prices').addEventListener('change', () => output.textContent = totalPrice());<div id="prices">
<input type="checkbox" data-price="10" />
<input type="checkbox" data-price="20" />
<input type="checkbox" data-price="30" />
</div>
<div id="priceSection"></div>You are overwriting instead of summing. When you are iterating through an array of checkboxes and you find that more than one is checked your function fails.
You should firstly count the sum of checked checkboxes and then send it to priceSection, and when your sum is equal to zero you should set it parseInt(customProductPricing) like you did in else.
As @Sercan has mentioned... I am also not sure about the issue of loweing the sum but I've whipped up something for you.
Hopefully it'll lead you to what you want to achieve.
let addonCheckboxes = document.querySelectorAll(".custom-checkbox")
let priceSection = document.getElementById("priceSection")
let customProductPricing = document.getElementById("customProductPricing");
var checkboxes = document.getElementsByClassName("custom-checkbox");
function sum(){
var total = 0;
for(let x = 0; x < checkboxes.length; x++){
let price = document.getElementsByClassName(x);
if(price[0].checked){
total = total + Number(price[0].dataset.price);
}
}
console.log('Sum = ' + total)
}<input class="custom-checkbox 0" onclick="sum()" type="checkbox" data-price="150"></input>
<input class="custom-checkbox 1" onclick="sum()" type="checkbox" data-price="150"></input>
<input class="custom-checkbox 2" onclick="sum()" type="checkbox" data-price="150"></input>
<div id="priceSection"></id>
<div id="customProductPricing">"150"</div>