I am not perfect in Javascript.. I want to show total sum of values entered in qty input boxes in next input box named total without refreshing page. Can anyone will help me to figure it out..?
Here is javascript
<script type="text/javascript">
var howmanytoadd = 2;
var rows;
function calc() {
var tot = 0;
for (var i = 0; i < rows.length; i++) {
var linetot = 0;
rows[i].getElementsByTagName('input')[howmanytoadd].value = linetot;
tot += linetot;
}
document.getElementById('total').value = tot
}
onload = function () {
rows = document.getElementById('tab').getElementById('qty1');
for (var i = 0; i < rows.length; i++) {
rows.getElementsByTagName('input')[i].onkeyup = calc;
}
}
</script>
Here is my html code:
Qty1 : <input type="text" name="qty1" id="qty"/><br>
Qty2 : <input type="text" name="qty2" id="qty"/><br>
Qty3 : <input type="text" name="qty3" id="qty"/><br>
Qty4 : <input type="text" name="qty4" id="qty"/><br>
Qty5 : <input type="text" name="qty5" id="qty"/><br>
Qty6 : <input type="text" name="qty6" id="qty"/><br>
Qty7 : <input type="text" name="qty7" id="qty"/><br>
Qty8 : <input type="text" name="qty8" id="qty"/><br>
<br><br>
Total : <input type="text" name="total" id="total"/>
here is screen shot
This question is related to
javascript
sum
calculator
Here's a simpler solution using what Akhil Sekharan has provided but with a little change.
var inputs = document.getElementsByTagName('input');
for (var i = 0; i < inputs.length; i += 1) {
if(parseInt(inputs[i].value)){
inputs[i].value = '';
}
}????
document.getElementById('total').value = total;
Javascript:
window.sumInputs = function() {
var inputs = document.getElementsByTagName('input'),
result = document.getElementById('total'),
sum = 0;
for(var i=0; i<inputs.length; i++) {
var ip = inputs[i];
if (ip.name && ip.name.indexOf("total") < 0) {
sum += parseInt(ip.value) || 0;
}
}
result.value = sum;
}?
Html:
Qty1 : <input type="text" name="qty1" id="qty"/><br>
Qty2 : <input type="text" name="qty2" id="qty"/><br>
Qty3 : <input type="text" name="qty3" id="qty"/><br>
Qty4 : <input type="text" name="qty4" id="qty"/><br>
Qty5 : <input type="text" name="qty5" id="qty"/><br>
Qty6 : <input type="text" name="qty6" id="qty"/><br
Qty7 : <input type="text" name="qty7" id="qty"/><br>
Qty8 : <input type="text" name="qty8" id="qty"/><br>
<br><br>
Total : <input type="text" name="total" id="total"/>
<a href="javascript:sumInputs()">Sum</a>
Example: http://jsfiddle.net/fRd9N/1/
?
$(document).ready(function(){_x000D_
_x000D_
//iterate through each textboxes and add keyup_x000D_
//handler to trigger sum event_x000D_
$(".txt").each(function() {_x000D_
_x000D_
$(this).keyup(function(){_x000D_
calculateSum();_x000D_
});_x000D_
});_x000D_
_x000D_
});_x000D_
_x000D_
function calculateSum() {_x000D_
_x000D_
var sum = 0;_x000D_
//iterate through each textboxes and add the values_x000D_
$(".txt").each(function() {_x000D_
_x000D_
//add only if the value is number_x000D_
if(!isNaN(this.value) && this.value.length!=0) {_x000D_
sum += parseFloat(this.value);_x000D_
}_x000D_
_x000D_
});_x000D_
//.toFixed() method will roundoff the final sum to 2 decimal places_x000D_
$("#sum").html(sum.toFixed(2));_x000D_
}
_x000D_
body {_x000D_
font-family: sans-serif;_x000D_
}_x000D_
#summation {_x000D_
font-size: 18px;_x000D_
font-weight: bold;_x000D_
color:#174C68;_x000D_
}_x000D_
.txt {_x000D_
background-color: #FEFFB0;_x000D_
font-weight: bold;_x000D_
text-align: right;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<table width="300px" border="1" style="border-collapse:collapse;background-color:#E8DCFF">_x000D_
<tr>_x000D_
<td width="40px">1</td>_x000D_
<td>Butter</td>_x000D_
<td><input class="txt" type="text" name="txt"/></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>2</td>_x000D_
<td>Cheese</td>_x000D_
<td><input class="txt" type="text" name="txt"/></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>3</td>_x000D_
<td>Eggs</td>_x000D_
<td><input class="txt" type="text" name="txt"/></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>4</td>_x000D_
<td>Milk</td>_x000D_
<td><input class="txt" type="text" name="txt"/></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>5</td>_x000D_
<td>Bread</td>_x000D_
<td><input class="txt" type="text" name="txt"/></td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>6</td>_x000D_
<td>Soap</td>_x000D_
<td><input class="txt" type="text" name="txt"/></td>_x000D_
</tr>_x000D_
<tr id="summation">_x000D_
<td> </td>_x000D_
<td align="right">Sum :</td>_x000D_
<td align="center"><span id="sum">0</span></td>_x000D_
</tr>_x000D_
</table>
_x000D_
Try this:
function add()
{
var sum = 0;
var inputs = document.getElementsByTagName("input");
for(i = 0; i <= inputs.length; i++)
{
if( inputs[i].name == 'qty'+i)
{
sum += parseInt(input[i].value);
}
}
console.log(sum)
}
To sum with decimal use this:
In the javascript change parseInt with parseFloat and add this line tot.toFixed(2); for this result:
function findTotal(){
var arr = document.getElementsByName('qty');
var tot=0;
for(var i=0;i<arr.length;i++){
if(parseFloat(arr[i].value))
tot += parseFloat(arr[i].value);
}
document.getElementById('total').value = tot;
tot.toFixed(2);
}
Use step=".01" min="0" type="number" in the input filed
Qty1 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty1"/><br>
Qty2 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty2"/><br>
Qty3 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty3"/><br>
Qty4 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty4"/><br>
Qty5 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty5"/><br>
Qty6 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty6"/><br>
Qty7 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty7"/><br>
Qty8 : <input onblur="findTotal()" step=".01" min="0" type="number" name="qty" id="qty8"/><br>
<br><br>
Total : <input type="number" step=".01" min="0" name="total" id="total"/>
I need to sum the span elements so I edited Akhil Sekharan's answer below.
var arr = document.querySelectorAll('span[id^="score"]');
var total=0;
for(var i=0;i<arr.length;i++){
if(parseInt(arr[i].innerHTML))
total+= parseInt(arr[i].innerHTML);
}
console.log(total)
You can change the elements with other elements link will guide you with editing.
Source: Stackoverflow.com