Develop Reference

calculate button question, html and javascript

i just changed my question to show my attempt at it. This is what im trying to do. The XPlevels have a set value, and using that i wanna calculate and display the price
function setprice() {
var val;
var type = document.getElementByName("XP")
if (type[0].checked)
{
var val = 200;
}
else if (type[1].checked)
{
var val = 150;
}
else if (type[2].checked)
{
var val = 100;
}
}
function Calculate() {
var FName = document.getElementById("FName");
var numppl = document.getElementById("numppl");
var Tprice = val * numppl;
window.alert(FName + ", the membership amount is: R " + BasePrice);
<input type="radio" name="XP" value="Novice" onclick="setprice" />Novice
<input type="radio" name="XP" value="Intermediate" onclick="setprice" />Intermediate
<input type="radio" name="XP" value="Expert" onclick="setprice" />Expert
<label for="Members">Number of members</label>
<input id="numppl" type="number" name="Members" size="2" />
<input type="button" value="Calculate fee" onclick="Calculate"/>

You can use onclick event on the Calculate Fee Button to call a JavaScript Function that checks which radio button is selected.
const calculateFee = () => {
let radioButtons = document.querySelectorAll("input");
for(let i=0; i<3; i++){
if(radioButtons[i].checked){
console.log(`Checked Radio Button is : ${radioButtons[i].value}`);
}
}
}
<input type="radio" name="XP" value="Novice" />Novice
<input type="radio" name="XP" value="Intermediate" checked />Intermediate
<input type="radio" name="XP" value="Expert" />Expert
<br />
<label for="Members">Number of members</label>
<input type="number" name="Members" size="2" />
<input type="button" value="Calculate fee" onclick="calculateFee()"/>

This is an edit of your JS code
function setprice() {
var type = document.querySelectorAll('[name="XP"]');
if (type[0].checked) {
var val = 200;
}
else if (type[1].checked) {
var val = 150;
}
else if (type[2].checked) {
var val = 100;
}
return val;
}
function calculate() {
var fName = document.getElementById("FName");
var numppl = document.getElementById("numppl");
var val = setprice();
var tprice = val * numppl.value;
// window.alert(FName + ", the membership amount is: R " + BasePrice);
console.log(tprice);
}
<input type="radio" name="XP" value="Novice" onclick="setprice" />Novice
<input type="radio" name="XP" value="Intermediate" onclick="setprice" />Intermediate
<input type="radio" name="XP" value="Expert" onclick="setprice" />Expert
<label for="Members">Number of members</label>
<input id="numppl" type="number" name="Members" size="2" />
<input type="button" value="Calculate fee" onclick="calculate()" />
This example a more correct approach to what you want
On each radio button, the value is the number (unit price) to be calculated. I have added a data attribute from which to take "Type"
The input named member must be set to a minimum value so that the user cannot set a negative value.
Try this code and if you have any questions I will supplement my answer!
var radio = document.querySelectorAll('.radio');
var number = document.querySelector('.number');
var button = document.querySelector('.button');
var getval;
var datainf;
button.addEventListener('click', function () {
radio.forEach(function (el) {
if (el.checked) {
getval = +el.value;
datainf = el.getAttribute('data');
}
});
var result = getval * number.value;
console.log( 'Quantity: ' + number.value + ' / Type: ' + datainf + ' / The membership amount is: ' + result);
});
<input type="radio" class="radio" name="XP" value="200" data="Novice" />Novice
<input type="radio" class="radio" name="XP" value="150" data="Intermediate" checked />Intermediate
<input type="radio" class="radio" name="XP" value="100" data="Expert" />Expert
<br />
<label for="Members">Number of members</label>
<input type="number" class="number" name="Members" size="2" value="1" min="1" />
<input type="button" class="button" value="Calculate fee" />

Textbox value not being multiplied when checkbox selected (HTML & Javascript/JQuery)

My code updates the CPC textbox when options are selected, but when an agency discount is selected (i.e. the 10% checkbox), it successfully lowers the CPC textbox value by 10% but does not do the same for the Total Cost textbox.
The Total Cost textbox value should be the (CPC textbox value * number of clicks textbox) * percentdiscount multiplier
Can anyone see where I'm going wrong? I'll be happy to clarify further if I haven't explained this very well!
HTML:
<div class="runningtotal">
Running CPC Total (in £): <input id="sum" type="text" readonly="true" value="0.00" data-total="0" />
Total Cost (in £): <input id="totalcost" type="text" readonly="true" value="0 (until clicks specified)" data-total="0" />
</div>
<div class="black_whitelisting">
<h1>4. Blacklist/Whitelist?</h1>
<input type="checkbox" class="blacklist" name="blacklist" value="0.20" id="blacklist_checkbox" onclick="BlacklistFunction()">Blacklist required<br>
<input type="checkbox" class="whitelist" name="whitelist" value="0.30" id="whitelist_checkbox">Whitelist required<br>
</div>
<div class="selecttier">
<h1>5. Number of Clicks</h1>
<input id="numberofclickstextbox" type="text" value="0.00" data-total="0" oninput="calculatetier()" />
</div>
<div class="agencydiscount">
<h1>6. Agency Discount</h1>
<label>
<input type="radio" name="percentdiscount" value="1" checked>
None
</label>
<label>
<input type="radio" name="percentdiscount" id="10percent" value="0.9" onclick="calculatetotalcost10()" >
10% Discount
</label>
<label>
<input type="radio" name="percentdiscount" id="15percent" value="0.85" onclick="calculatetier15()" >
15% Discount
</label>
</div>
Javascript:
jQuery(function($) {
$('input[name="percentdiscount"]').on('change', function() {
applyDiscount();
});
$('input[type=checkbox]').click(function() {
let sum = 0;
$('input[type=checkbox]:checked').each(function() {
sum += parseFloat($(this).val());
});
$('#sum').val(sum.toFixed(2)).data('total', sum);
applyDiscount();
});
function applyDiscount() {
var pc = parseFloat($('input[name="percentdiscount"]:checked').val());
$('#sum').val(function() {
return ($(this).data('total') * pc).toFixed(2);
});
}
});
//to work out total cost
function calculatetier() {
var myBox5 = document.getElementById('numberofclickstextbox').value;
var myBox6 = document.getElementById('sum').value;
var result = document.getElementById('totalcost');
var myResult = myBox5 * myBox6;
result.value = myResult.toFixed(2);
}

Looks like you are calculatetier function isn't being called during the change of discount.
Working Demo: https://codepen.io/punith/pen/gOpaVxr?editors=1010
HTML code
<div class="runningtotal">
Running CPC Total (in £): <input id="sum" type="text" readonly="true" value="0.00" data-total="0" />
Total Cost (in £): <input id="totalcost" type="text" readonly="true" value="0 (until clicks specified)" data-total="0" />
</div>
<div class="black_whitelisting">
<h1>4. Blacklist/Whitelist?</h1>
<input type="checkbox" class="blacklist" name="blacklist" value="0.20" id="blacklist_checkbox" >Blacklist required<br>
<input type="checkbox" class="whitelist" name="whitelist" value="0.30" id="whitelist_checkbox">Whitelist required<br>
</div>
<div class="selecttier">
<h1>5. Number of Clicks</h1>
<input id="numberofclickstextbox" type="text" value="0.00" data-total="0" oninput="calculatetier()" />
</div>
<div class="agencydiscount">
<h1>6. Agency Discount</h1>
<label>
<input type="radio" name="percentdiscount" value="1" checked>
None
</label>
<label>
<input type="radio" name="percentdiscount" id="10percent" value="0.9" >
10% Discount
</label>
<label>
<input type="radio" name="percentdiscount" id="15percent" value="0.85" >
15% Discount
</label>
</div>
JS Code
function calculatetier() {
var myBox5 = document.getElementById('numberofclickstextbox').value;
var myBox6 = document.getElementById('sum').value;
var result = document.getElementById('totalcost');
if(myBox6=="0.00"){
myBox6 =1;
}
console.log(myBox6)
var myResult = myBox5 * myBox6;
result.value = myResult.toFixed(2);
}
jQuery(function($) {
$('input[name="percentdiscount"]').on('change', function() {
applyDiscount();
});
$('input[type=checkbox]').click(function() {
let sum = 0;
$('input[type=checkbox]:checked').each(function() {
sum += parseFloat($(this).val());
});
$('#sum').val(sum.toFixed(2)).data('total', sum);
applyDiscount();
});
//to work out total cost
function applyDiscount() {
var pc = parseFloat($('input[name="percentdiscount"]:checked').val());
$('#sum').val(function() {
return ($(this).data('total') * pc).toFixed(2);
});
calculatetier()
}
});

try to use onchange event instead I guess the event you are binding is not correct
<input id="numberofclickstextbox" type="text" value="0.00" data-total="0" onchange="calculatetier()" />

How to multiple (a*b) two input text value and show it Dynamicly with text change in javascript?

i want to show the money that customer must pay and my inputs are like this :
<input type="text" class="form-control" placeholder="cost " id="txt" name="credit">
<input type="text" class="form-control" placeholder="quantity" id="txt" name="limit">
when the input text is changing i want to show the total cost (quantity*cost) in a <p> tag Dynamicly how can it be with javascript?

You can try this:
<input type="text" class="form-control" placeholder="cost " id="credit" name="credit" onchange="calculate()">
<input type="text" class="form-control" placeholder="quantity" id="limit" name="limit" onchange="calculate()">
<p id="result"></p>
And javascript part:
function calculate() {
var cost = Number(document.getElementById("credit"));
var limit = Number(document.getElementById("limit"));
document.getElementById("result").innerHTML= cost*limit;
}
You must ensure you entered numbers in inputs.

All of the above will generate errors if both the boxes are blank . Try this code , its tested and running .
<script>
function calc()
{
var credit = document.getElementById("credit").value;
var limit = document.getElementById("limit").value;
if(credit == '' && limit != '')
{
document.getElementById("cost").innerHTML = parseInt(limit);
}
else if(limit == '' && credit != '')
{
document.getElementById("cost").innerHTML = parseInt(credit);
}
else if(limit!= '' && credit!= '')
{
document.getElementById("cost").innerHTML = parseInt(limit) * parseInt(credit);
}
else
{
document.getElementById("cost").innerHTML = '';
}
}
</script>
</head>
<input type="number" value="0" min="0" class="form-control" placeholder="cost" id="credit" name="credit" onkeyup="calc();">
<input type="number" value="0" min="0" class="form-control" placeholder="quantity" id="limit" name="limit" onkeyup="calc();">
<p id="cost"></p>

Hope this will be useful
// get cost field
var _cost = document.getElementById("cost");
_cost.addEventListener('keyup',function(event){
updateCost()
})
// get quantity field
var _quantity = document.getElementById("quantity");
_quantity.addEventListener('keyup',function(event){
updateCost()
})
function updateCost(){
var _getCost = document.getElementById("cost").value;
var _getQuantity = document.getElementById("quantity").value;
var _total = _getCost*_getQuantity;
console.log(_total);
document.getElementById("updateValue").textContent = ""; // Erase previous value
document.getElementById("updateValue").textContent = _total // update with new value
}
jsfiddle

In case you consider using JQuery I've made this fiddle.
See if it works for you.
https://fiddle.jshell.net/9cpbdegt/
$(document).ready(function() {
$('#credit').keyup(function() {
recalc();
});
$('#limit').keyup(function() {
recalc();
});
function recalc() {
var credit = $("#credit").val();
var limit = $("#limit").val();
var result = credit * limit;
$("#result").text(result);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="text" class="form-control" placeholder="cost " id="credit" name="credit" value="0">x
<input type="text" class="form-control" placeholder="quantity" id="limit" name="limit" value="0">
<p id="result">0</p>

Try this:
<script >
function myFunction() {
document.getElementById('totalcost').innerHTML = document.getElementById('txt').value * document.getElementById('txt2').value;}
</script>
Also, change your HTML to this:
<input type="text" onkeypress="myFunction()" onkeyup="myFunction()" onclick="myFunction()" onmousemove="myFunction()" class="form-control" placeholder="cost " id="txt" name="credit">
<input type="text" onkeypress="myFunction()" onkeyup="myFunction()" onclick="myFunction()" onmousemove="myFunction()" class="form-control" placeholder="quantity" id="txt2" name="limit">
Enter cost and quantity.
Note the change with the second input: id='txt' was changed to id='txt2'. This is because no 2 elements can have the same id.
Note: Untested.

jquery sum of multiple input fields if same class in one input

Hello I need to sum the values of same class input in one input with class name total.
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="total" value="" />
Possible?
A working fiddle here
$(document).on("change", "qty1", function() {
var sum = 0;
$("input[class *= 'qty1']").each(function(){
sum += +$(this).val();
});
$(".total").val(sum);
});

You pretty much had it, just needed to adjust your JQuery a little bit for the appropriate selectors
updated fiddle : http://jsfiddle.net/5gsBV/7/
$(document).on("change", ".qty1", function() {
var sum = 0;
$(".qty1").each(function(){
sum += +$(this).val();
});
$(".total").val(sum);
});

I suggest this solution:
html
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="qty1" value="" />
<input type="text" class="total" value="" />
<div id="result"></div>
js
$(".qty1").on("blur", function(){
var sum=0;
$(".qty1").each(function(){
if($(this).val() !== "")
sum += parseInt($(this).val(), 10);
});
$("#result").html(sum);
});
fiddle

I think your issue is here:
$("#destination").val(sum);
change it to:
$(".total").val(sum);
And instead of change event i suggest you to use keyup instead.
$(document).on("keyup"

$(document).on("keyup", ".qty1", function() {
var sum = 0;
$(".qty1").each(function(){
sum += +$(this).val();
});
$(".total").val(sum);
});

We can use following own function
(function( $ ){
$.fn.sum=function () {
var sum=0;
$(this).each(function(index, element){
sum += parseFloat($(element).val());
});
return sum;
};
})( jQuery );
//Call $('.abcd').sum();
http://www.gleegrid.com/code-snippet/javascript/jquery-sum-input-values-by-class/?filter=bygroup&group=JQuery

$('.qty1').each(function(){
sum += parseFloat(this.value);
});
console.log(sum);

This will work with pure js
<input type="text" value=" " class="percent-input"> <br>
<input type="text" value=" " class="percent-input"> <br>
<input type="text" value=" " class="percent-input"> <br>
<p>Total Value :<span id="total">100%</span></p>
<p>Left Value :<span id="left">0.00%</span></p>
var percenInput = document.querySelectorAll('.percent-input');
for (let i = 0; i < percenInput.length; i++) {
percenInput[i].addEventListener('keyup', getPercentVal)
}
function getPercentVal() {
var total = 0;
var allPercentVal = document.querySelectorAll('.percent-input');
for (var i = 0; i < allPercentVal.length; i++) {
if (allPercentVal[i].value > 0) {
var ele = allPercentVal[i];
total += parseFloat(ele.value);
}
}
document.getElementById("total").innerHTML = total.toFixed(2) + '%';
document.getElementById("left").innerHTML = (100 - total).toFixed(2) + '%';
}

You almost had it:
$(document).on("change", ".qty1", function() {
var sum = 0;
$(".qty1").each(function(){
sum += +$(this).val();
});
$(".total").val(sum);
});
http://jsfiddle.net/DUKL6/1

The problem with all of the above answers is that they fail if you enter something other than a number. If you want something that is more friendly to users, you should do some validation, perhaps even give some feedback when a value other than a number is entered.
$('body').on('change', '.qty1', function() {
var total=0;
$(".qty1").each(function(){
quantity = parseInt($(this).val());
if (!isNaN(quantity)) {
total += quantity;
}
});
$('.total').val('Total: '+total);
});

<input type="text" class="price" placeholder="enter number one" />
<input type="text" class="price" placeholder="enter number two" />
<input type="text" class="price" placeholder="enter number three" />
<input type="text" class="price" placeholder="enter number four" />
<input type="text" id="total">
<script>
$(document).ready( function() {
$(document).on("keyup", ".price", function() {
var sum = 0;
$(".price").each(function(){
sum += +$(this).val();
});
$('#total').val(sum);
});
});
</script>

Calculate Sum of Multiple Input Numbers JQuery

I have 3 inputs and I'm trying to get the sum of the numbers each time a user updates one of them.
HTML
<input class="my-input" type="number" name="" value="0" min="0">
<input class="my-input" type="number" name="" value="0" min="0">
<input class="my-input" type="number" name="" value="0" min="0">
JS
var sum = 0;
$('.my-input').each(function(index, elem){
var value = $(this).val();
sum += parseFloat($(elem).val());
console.log(sum);
$(this).on('keyup click', function (){
sum += parseFloat($(elem).val());
});
});
But I keep getting crazy results..
EDIT:
I tried this:
function getSum(){
var sum = 0;
$('.my-input').each(function(index, elem){
var value = $(this).val();
sum += parseFloat($(elem).val());
});
return sum;
}
$('.my-input').each(function(){
$(this).on('keyup click', function(){
console.log( this.value );
var curSum = getSum();
console.log('current sum: ' + curSum);
});
});

Consider this example:
<input class="my-input" type="number" name="" value="0" min="0" />
<input class="my-input" type="number" name="" value="0" min="0" />
<input class="my-input" type="number" name="" value="0" min="0" />
<input type="text" id="total" value="" />
<script type="text/javascript">
// just get keyup event
$('.my-input').on('keyup', function(){
var total = 0;
// on every keyup, loop all the elements and add all the results
$('.my-input').each(function(index, element) {
var val = parseFloat($(element).val());
if( !isNaN( val )){
total += val;
}
});
$('#total').val(total);
});
</script>