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how to get the sum of all row value in jquery

I'm trying to achieve two additions in my code.
I am trying to get the sum of the row values in the last column of the row
I am trying to get the sum of all the final columns in another div
I've achieved the first, my code gives me the correct value of each row. However the second sum is not populating the addition. It's giving me the same value of each row, but I want the value of all rows.
$('.bonus-sum').keyup(function() {
var sum = 0;
var salary = parseFloat($(this).closest('tr').find('.wagein').text());
var bonus = parseFloat($(this).closest('tr').find('.bonus-sum').val()) || 0;
$(this).closest('tr').find('.bonus-in:checked').each(function() {
sum = salary + bonus;
});
$(this).closest('tr').find('.netpay').text(sum.toFixed(2));
var netpay = 0;
netpay += sum;
$('#total').text('₹ ' + netpay.toFixed(2));
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<table>
<thead>
<tr>
<th class="text-center"><input type="checkbox" checked="checked" class="checkAll" name="checkAll" /></th>
<th>#</th>
<th>Beneficiary Name</th>
<th class="text-right box">Bonus ₹</th>
<th class="text-right">Salary ₹</th>
<th class="text-right">Net pay ₹</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<input type="checkbox" id="bene_id" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>1</td>
<td>Chellammal Kochimoni</td>
<td><input type="text" id="bonus_temp" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" id="bene_id" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>2</td>
<td>Christal Prema G.</td>
<td><input type="text" id="bonus_temp" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" id="bene_id" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>3</td>
<td>Kamalesan T.</td>
<td><input type="text" id="bonus_temp" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" id="bene_id" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>4</td>
<td>Palammal A.</td>
<td><input type="text" id="bonus_temp" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" id="bene_id" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>4</td>
<td>Thangapazham</td>
<td><input type="text" id="bonus_temp" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
</tbody>
</table>
</div>
<div>Total Net Pay <span id="total">₹ 0.00</span></div>

To fix this you need to create a loop which iterates through all the .netpay elements, not just the one which was updated, and generates the total value.
In addition, you need to perform the same action when the checkbox is changed. The logic itself can also be made more succinct and DRY, like this:
$('.bonus-sum').on('input', updateRowTotal);
$('.bonus-in').on('change', updateRowTotal).trigger('change'); // trigger is to set values on load
function updateRowTotal() {
let $tr = $(this).closest('tr');
let salary = parseFloat($tr.find('.wagein').text()) || 0;
let bonus = parseFloat($tr.find('.bonus-sum').val()) || 0
let rowTotal = salary + ($tr.find('.bonus-in:checked').length ? bonus : 0);
$tr.find('.netpay').text(rowTotal.toFixed(2));
updateTotal();
}
function updateTotal() {
let total = 0;
$('.netpay').each((i, el) => total += parseFloat(el.textContent.trim() || 0));
$('#total').text('₹ ' + total.toFixed(2));
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<table>
<thead>
<tr>
<th class="text-center"><input type="checkbox" checked="checked" class="checkAll" name="checkAll" /></th>
<th>#</th>
<th>Beneficiary Name</th>
<th class="text-right box">Bonus ₹</th>
<th class="text-right">Salary ₹</th>
<th class="text-right">Net pay ₹</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<input type="checkbox" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>1</td>
<td>Chellammal Kochimoni</td>
<td><input type="text" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>2</td>
<td>Christal Prema G.</td>
<td><input type="text" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>3</td>
<td>Kamalesan T.</td>
<td><input type="text" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>4</td>
<td>Palammal A.</td>
<td><input type="text" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
<tr>
<td>
<input type="checkbox" checked="checked" class="bonus-in" name="bene_id[]" value="" />
</td>
<td>4</td>
<td>Thangapazham</td>
<td><input type="text" class="bonus-sum" name="bonus_temp[]" value="" /></td>
<td class="wagein">400</td>
<td class="netpay"></td>
</tr>
</tbody>
</table>
</div>
<div>Total Net Pay <span id="total">₹ 0.00</span></div>
Note the removal of all the duplicate id attributes in your HTML . They are invalid, and are not required anyway.

I have introduced new variable totalsum.
Replace the below function .your code will work as expected
<script>
var totalsum=0;
$('.bonus-sum').keyup(function() {
var sum = 0;
var salary = parseFloat($(this).closest('tr').find('.wagein').text());
var bonus = parseFloat($(this).closest('tr').find('.bonus-sum').val()) || 0;
$(this).closest('tr').find('.bonus-in:checked').each(function() {
sum = salary + bonus;
totalsum+=sum;
});
$(this).closest('tr').find('.netpay').text(sum.toFixed(2));
var netpay = 0;
netpay += totalsum;
$('#total').text('₹ ' + netpay.toFixed(2));
});
</script>

How to calculate sum of one field in table and put it in an input

I have a table in razor and I sent the data by ViewBag from controller
<table>
<thead>
<tr>
<th>Name</th>
<th>Category</th>
<th>Price</th>
<th>Count</th>
</tr>
</thead>
<tbody>
#foreach(var item in ViewBag.Products)
{
<tr>
<td>#item.Name</td>
<td>#item.Category</td>
<td>
<input type="text" class="form-control" value="#item.Price" />
</td>
<td>
<input type="text" class="form-controll" value="#item.Count" />
</td>
</tr>
}
</tbody>
</table>
<input type="text" class="form-control" value="#Model.TotalPrice" />
I want to multiple count and price of each row and put it in another input using javascript. and when the user change the value of input, that input that holds the value could change automatically.
if anyone can help me i would be appreciated.

If you are using jquery then it can be achieve as below.
You can update your total on every key press in price or count input.
Add some class to your input. In my example I've took class as price, and class total for display sum.
Add keyup event as below. Also trigger it on $(document).ready to initially set the total value.
$('.price').on('keyup', function() {
var val = +$(this).val();
var valSibling = +$(this).parent().siblings('td').find('.price').val();
if (isNaN(val) || isNaN(valSibling))
return;
$(this).parent().siblings('td').find('.total').val(val * valSibling);
var finaltotal = 0;
$('.total').each(function() {
if(!isNaN($(this).val()))
finaltotal += Number($(this).val());
});
$('.finaltotal').val(finaltotal);
});
$(document).ready(function(){
$('.price').trigger('keyup');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.3/jquery.min.js"></script>
<table>
<thead>
<tr>
<th>Name</th>
<th>Category</th>
<th>Price</th>
<th>Count</th>
</tr>
</thead>
<tbody>
<tr>
<td>Name1</td>
<td>Category1</td>
<td><input type="text" class="price form-control" value="40" /></td>
<td><input type="text" class="price form-control" value="4" /></td>
<td><input type="text" class="total form-control" /></td>
</tr>
<tr>
<td>Name2</td>
<td>Category2</td>
<td><input type="text" class="price form-control" value="20" /></td>
<td><input type="text" class="price form-control" value="2" /></td>
<td><input type="text" class="total form-control" /></td>
</tr>
</tbody>
</table>
<input type="text" class="finaltotal form-control" />

var inputs = $('#container input');
inputs.keyup(function() {
var arr = inputs.toArray();
var sum = 0;
for (var i = 0; i < arr.length / 2; i++)
sum += arr[i * 2].value * arr[i * 2 + 1].value;
$('#result').val(sum);
})
table,
th,
td {
border: 1px solid black;
border-collapse: collapse;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<thead>
<tr>
<th>Count</th>
<th>Price</th>
<tr>
</thead>
<tbody id='container'>
<tr>
<td><input type='number' value='1' /></td>
<td><input type='number' value='2' /></td>
</tr>
<tr>
<td><input type='number' value='10' /></td>
<td><input type='number' value='20' /></td>
</tr>
</tbody>
</table>
Total: <input type='number' readonly id='result' readonly value='202' />

I want to multiple count and price of each row and put it in another input using javascript.
You can add another td in each tr. Then loop through all the tbody tr to calculate the value:
var tr = document.querySelectorAll('tbody tr');
function calculate(){
tr.forEach(function(el){
var td = el.querySelectorAll('td');
// If there is invalid number in input then no change in total.
if (isNaN(td[2].querySelector('input').value) || isNaN(td[3].querySelector('input').value))
return;
td[4].querySelector('input').value = td[2].querySelector('input').value * td[3].querySelector('input').value;
});
}
calculate();
.form-control{
width: 50px;
}
<table>
<thead>
<tr>
<th>Name</th>
<th>Category</th>
<th>Price</th>
<th>Count</th>
<th>Total</th>
</tr>
</thead>
<tbody>
<tr>
<td>Name1</td>
<td>Category1</td>
<td><input type="text" oninput="calculate()" class="form-control" value="40" /></td>
<td><input type="text" oninput="calculate()" class="form-control" value="4" /></td>
<td><input type="text" class="form-control" /></td>
</tr>
<tr>
<td>Name2</td>
<td>Category2</td>
<td><input type="text" oninput="calculate()" class="form-control" value="20" /></td>
<td><input type="text" oninput="calculate()" class="form-control" value="2" /></td>
<td><input type="text" class="form-control" /></td>
</tr>
<tr>
<td>Name3</td>
<td>Category3</td>
<td><input type="text" oninput="calculate()" class="form-control" value="30" /></td>
<td><input type="text" oninput="calculate()" class="form-control" value="3" /></td>
<td><input type="text" class="form-control" /></td>
</tr>
</tbody>
</table>

JavaScript input aggregation function not including default input values

I have a JavaScript function to aggregate the values of input fields, which I sourced from this answer to a similar question. My function appears to be working, however it only calculates the total value after one of the default values has been amended. How can I include the default values in the functions aggregation from the start? Here's a fiddle, and here's the code:
JavaScript:
$(document).ready(function(){
//iterate through each textboxes and add keyup
//handler to trigger sum event
$(".qty1").each(function() {
$(this).keyup(function(){
calculateSum();
});
});
});
function calculateSum() {
var sum = 0;
//iterate through each textboxes and add the values
$(".qty1").each(function() {
//add only if the value is number
if(!isNaN(this.value) && this.value.length!=0) {
sum += parseFloat(this.value);
}
});
//.toFixed() method will roundoff the final sum to 2 decimal places
$("#sum").html(sum.toFixed(2)) * 0.2;}
html:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<table width="300px" border="1" style="border-collapse:collapse;background-color:#E8DCFF">
<tr>
<td width="40px">1</td>
<td>Butter</td>
<td><input class="txt" type="text" name="txt" value="65"/></td>
</tr>
<tr>
<td>2</td>
<td>Cheese</td>
<td><input class="txt" type="text" name="txt" value="32"/></td>
</tr>
<tr>
<td>3</td>
<td>Eggs</td>
<td><input class="txt" type="text" name="txt" value="47"/></td>
</tr>
<tr>
<td>4</td>
<td>Milk</td>
<td><input class="txt" type="text" name="txt" value="31"/></td>
</tr>
<tr>
<td>5</td>
<td>Bread</td>
<td><input class="txt" type="text" name="txt" value="69"/></td>
</tr>
<tr>
<td>6</td>
<td>Soap</td>
<td><input class="txt" type="text" name="txt" value="65"/></td>
</tr>
<tr id="summation">
<td> </td>
<td align="right">Sum :</td>
<td align="center"><span id="sum">0</span></td>
</tr>

Simply call calculateSum() inside $(document).ready and outside of the keyup event:
$(document).ready(function(){
calculateSum(); //call the function here
//iterate through each textboxes and add keyup
//handler to trigger sum event
$(".txt").each(function() {
$(this).keyup(function(){
calculateSum();
});
});
});
function calculateSum() {
var sum = 0;
//iterate through each textboxes and add the values
$(".txt").each(function() {
//add only if the value is number
if(!isNaN(this.value) && this.value.length!=0) {
sum += parseFloat(this.value);
}
});
//.toFixed() method will roundoff the final sum to 2 decimal places
$("#sum").html(sum.toFixed(2));
}
body {
font-family: sans-serif;
}
#summation {
font-size: 18px;
font-weight: bold;
color:#174C68;
}
.txt {
background-color: #FEFFB0;
font-weight: bold;
text-align: right;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<table width="300px" border="1" style="border-collapse:collapse;background-color:#E8DCFF">
<tr>
<td width="40px">1</td>
<td>Butter</td>
<td><input class="txt" type="text" name="txt" value="65"/></td>
</tr>
<tr>
<td>2</td>
<td>Cheese</td>
<td><input class="txt" type="text" name="txt" value="32"/></td>
</tr>
<tr>
<td>3</td>
<td>Eggs</td>
<td><input class="txt" type="text" name="txt" value="47"/></td>
</tr>
<tr>
<td>4</td>
<td>Milk</td>
<td><input class="txt" type="text" name="txt" value="31"/></td>
</tr>
<tr>
<td>5</td>
<td>Bread</td>
<td><input class="txt" type="text" name="txt" value="69"/></td>
</tr>
<tr>
<td>6</td>
<td>Soap</td>
<td><input class="txt" type="text" name="txt" value="65"/></td>
</tr>
<tr id="summation">
<td> </td>
<td align="right">Sum :</td>
<td align="center"><span id="sum">0</span></td>
</tr>
</table>

How to customize jAutoCalc plugin

I have a simple question regarding jAutoCalc, my question can be answered in two ways:
1> How to customize the jAutoCalc plugin so that we can make it able to be used for input array names instead of just names.
my code is here:
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="http://rawgit.com/c17r/jAutoCalc/master/jAutoCalc.js"></script>
<script type="text/javascript">
<!--
$(document).ready(function() {
function autoCalcSetup() {
$('form[name=cart]').jAutoCalc('destroy');
$('form[name=cart] tr[name=line_items]').jAutoCalc({
keyEventsFire: true,
decimalPlaces: 2,
emptyAsZero: true
});
$('form[name=cart]').jAutoCalc({
decimalPlaces: 2
});
}
autoCalcSetup();
$('button[name=remove]').click(function(e) {
e.preventDefault();
var form = $(this).parents('form')
$(this).parents('tr').remove();
autoCalcSetup();
});
$('button[name=add]').click(function(e) {
e.preventDefault();
var $table = $(this).parents('table');
var $top = $table.find('tr[name=line_items]').first();
var $new = $top.clone(true);
$new.jAutoCalc('destroy');
$new.insertBefore($top);
$new.find('input[type=text]').val('');
autoCalcSetup();
});
});
</script>
</head>
<body>
<form name="cart">
<table name="cart">
<tr>
<th></th>
<th>Item</th>
<th>Qty</th>
<th>Price</th>
<th> </th>
<th>Item Total</th>
</tr>
<tr name="line_items">
<td><button name="remove">Remove</button></td>
<td>Stuff</td>
<td><input type="text" name="qty" value="1"></td>
<td><input type="text" name="price" value="9.99"></td>
<td> </td>
<td><input type="text" name="item_total" value="" jAutoCalc="{qty} * {price}"></td>
</tr>
<tr name="line_items">
<td><button name="remove">Remove</button></td>
<td>More Stuff</td>
<td><input type="text" name="qty" value="2"></td>
<td><input type="text" name="price" value="12.50"></td>
<td> </td>
<td><input type="text" name="item_total" value="" jAutoCalc="{qty} * {price}"></td>
</tr>
<tr name="line_items">
<td><button name="remove">Remove</button></td>
<td>And More Stuff</td>
<td><input type="text" name="qty" value="3"></td>
<td><input type="text" name="price" value="99.99"></td>
<td> </td>
<td><input type="text" name="item_total" value="" jAutoCalc="{qty} * {price}"></td>
</tr>
<tr>
<td colspan="3"> </td>
<td>Subtotal</td>
<td> </td>
<td><input type="text" name="sub_total" value="" jAutoCalc="SUM({item_total})"></td>
</tr>
<tr>
<td colspan="3"> </td>
<td>
Tax:
<select name="tax">
<option value=".06">CT Tax</option>
<option selected value=".00">Tax Free</option>
</select>
</td>
<td> </td>
<td><input type="text" name="tax_total" value="" jAutoCalc="{sub_total} * {tax}"></td>
</tr>
<tr>
<td colspan="3"> </td>
<td>Total</td>
<td> </td>
<td><input type="text" name="grand_total" value="" jAutoCalc="{sub_total} + {tax_total}"></td>
</tr>
<tr>
<td colspan="99"><button name="add">Add Row</button></td>
</tr>
</table>
</form>
</body>
</html>
since the names are same for dynamically generated input's i want use input array. The problem is that if i do so then I'm unable to use the plugin features!
2> The question can be answered in second way by providing methods to use plugin while using input arrays

I know its an old post but maybe others may have same issue.
Try to open jautocalc.js find this function "getFieldSelector(field)" and edit this code.
return ':input[name="' + field + '"]';
to
return ':input[name="' + field + '[]"]';

I think the whole problem is with javascript
the javascript should be like
$(document).ready(function(){
$('.item_total').keyup(function(){
$('your result input name here).text($('.item_total').val() * 1.5);
});
});
this link will help you:
http://jsfiddle.net/7BDwP/
You will get idea from the above link what i am trying to say

Computing the sum of a variable number of html table columns using Javascript

I have a table with a lot of columns, and each column consists of a text field with a numeric value that can be changed. The last column of the table must hold the sum of all columns. Now here's my question: how can I make the sum change in realtime using javascript? For example if a column value is modified, the sum must be changed in order to fit the new values.
Below is my table:
<table id="sum_table">
<tr>
<td>Column 1</td>
<td><input type="text" name="val1" value="" /></td>
</tr>
<tr>
<td>Column 2</td>
<td><input type="text" name="val2" value="" /></td>
</tr>
<tr>
<td>Column 3</td>
<td><input type="text" name="val3" value="" /></td>
</tr>
[...]
<tr>
<td>Total</td>
<td><input type="text" name="total" value="" /></td>
</tr>
</table>
Thank you.

<html>
<head>
<script type="text/javascript">
function calc()
{
var sum = parseFloat(document.getElementById('val1').value + document.getElementById('val2').value + document.getElementById('val3').value + [...]);
document.getElementById('total').value = sum;
}
</script>
</head>
<body>
<table id="sum_table">
<tr>
<td>Column 1</td>
<td><input type="text" id="val1" value="" OnTextChanged="javascript:calc()"/></td>
</tr>
<tr>
<td>Column 2</td>
<td><input type="text" id="val2" value="" OnTextChanged="javascript:calc()/></td>
</tr>
<tr>
<td>Column 3</td>
<td><input type="text" id="val3" value="" OnTextChanged="javascript:calc()/></td>
</tr>
[...]
<tr>
<td>Total</td>
<td><input type="text" id="total" value="" /></td>
</tr>
</table>
</body>
</html>
That should to the trick.

Edit:
After discussion in the comments, this is the final version: http://jsfiddle.net/gXdwb/3/
$('#sum_table tr:not(.totalColumn) input:text').bind('keyup change', function() {
var $table = $(this).closest('table');
var total = 0;
var thisNumber = $(this).attr('class').match(/(\d+)/)[1];
$table.find('tr:not(.totalColumn) .sum'+thisNumber).each(function() {
total += +$(this).val();
});
$table.find('.totalColumn td:nth-child('+thisNumber+') input').val(total);
});
<table id="sum_table" width="600" border="0">
<tr>
<td>Sum 1</td>
<td>Sum 2</td>
<td>Sum 3</td>
</tr>
<tr>
<td><input type="text" name="textfield" id="textfield" class="sum1" /></td>
<td><input type="text" name="textfield2" id="textfield2" class="sum2" /></td>
<td><input type="text" name="textfield3" id="textfield3" class="sum3"/></td>
</tr>
<tr>
<td><input type="text" name="textfield4" id="textfield4" class="sum1" /></td>
<td><input type="text" name="textfield5" id="textfield5" class="sum2" /></td>
<td><input type="text" name="textfield6" id="textfield6" class="sum3" /></td>
</tr>
<tr>
<td><input type="text" name="textfield7" id="textfield7" class="sum1" /></td>
<td><input type="text" name="textfield8" id="textfield8" class="sum2"/></td>
<td><input type="text" name="textfield9" id="textfield9" class="sum3"/></td>
</tr>
<tr>
<td>Total</td>
<td>Total</td>
<td>Total</td>
</tr>
<tr class="totalColumn">
<td><input type="text" name="textfield10" id="textfield10" /></td>
<td><input type="text" name="textfield11" id="textfield11" /></td>
<td><input type="text" name="textfield12" id="textfield12" /></td>
</tr>
<tr>
<td>bla</td>
<td>bla</td>
<td>bla</td>
</tr>
</table>
As usual, I'm not sure if this is optimal, but it seems to work:
See: http://jsfiddle.net/gXdwb/
$('#sum_table tr:not(:last-child)').bind('keyup change', function() {
var $table = $(this).closest('table');
var total = 0;
$table.find('tr:not(:last-child) input:text').each(function() {
total += +$(this).val();
});
$table.find('input[name="total"]').val(total);
});