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jQuery: Loop print only one value

I have below code
<script src="https://code.jquery.com/jquery-3.2.0.min.js"></script>
<table id="main_table">
<tr>
<td><input name="" value="3" id="id_3" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="5.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="4" id="id_4" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="2.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="5" id="id_5" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="3.0000" type="text"></td>
</tr>
</table>
<script>
jQuery('table#main_table').each( function(){
if(jQuery(this).find("input:checkbox").is(':checked')){
var txt = jQuery(this).find("input[name='qty[]']").val();
alert(txt);
}
});
I need to check within table if checkbox is checked then print it's qty value. But below code only prints 1 value. Instead of all
What I'm missing?

Your loop is for tr not for table.
jQuery('table#main_table tr').each( function(){
if(jQuery(this).find("input:checkbox").is(':checked')){
var txt = jQuery(this).find("input[name='qty[]']").val();
console.log(txt);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="main_table">
<tr>
<td><input name="" value="3" id="id_3" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="5.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="4" id="id_4" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="2.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="5" id="id_5" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="3.0000" type="text"></td>
</tr>
</table>

You're using each on <table> which will iterate only once as there is only one table with that ID. Iterate over the <tr> elements in the table.
$('#main_table tr').each(function() {
...
jQuery('table#main_table tr').each(function() {
if (jQuery(this).find("input:checkbox").is(':checked')) {
var txt = jQuery(this).find("input[name='qty[]']").val();
console.log(txt);
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="main_table">
<tr>
<td><input name="" value="3" id="id_3" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="5.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="4" id="id_4" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="2.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="5" id="id_5" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="3.0000" type="text"></td>
</tr>
</table>
There's better way to do this. Instead of iterating over tr and finding checked checkboxes, you can iterate over checked checkboxes and get the value of the associated textbox.
$(this) // Will refer to the checkbox
.closest('td') // Get parent <td>
.next() // Get next element i.e. next <td>
.find('[name="qty[]"]') // Find element with name attribute value as "qty[]"
.val() // Get it's value
$('#main_table tr :checkbox:checked').each(function() {
console.log($(this).closest('td').next().find('[name="qty[]"]').val());
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="main_table">
<tr>
<td><input name="" value="3" id="id_3" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="5.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="4" id="id_4" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="2.0000" type="text"></td>
</tr>
<tr>
<td><input name="" value="5" id="id_5" checked="checked" type="checkbox"></td>
<td><input name="qty[]" value="3.0000" type="text"></td>
</tr>
</table>

PHP: Getting work days and closed days based on checkbox

So This is what i have done till now ,but i can't think of a way to get the data, entered or checked by user for each day in php . Since i have the same name for all the input type for workdays i.e. name='work' . I cant find a way to get the values for each day seperately( USING PHP).
<body>
<center>
<form method="post" action="Acharges.php">
<table>
<tr>
<td colspan="4"><input type="checkbox" onclick="toggle(this)" name="day" /><b>All Day</b></td>
<td><b>Working</b></td>
<td><b>Close</b></td>
</tr>
<tr>
<td colspan="4"><b>Monday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="mday" /></td>
</tr>
<tr>
<td colspan="4"><b>Tuesday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="tday" /></td>
</tr>
<tr>
<td colspan="4"><b>Wednesday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="wday" /></td>
</tr>
<tr>
<td colspan="4"><b>Thursday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="thday" /></td>
</tr>
<tr>
<td colspan="4"><b>Friday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="fday" /></td>
</tr>
<tr>
<td colspan="4"><b>Saturday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="sday" value="close" /></td>
</tr>
<tr>
<td colspan="4"><b>Sunday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
<td><input type="checkbox" name="suday" /></td>
</tr>
</table>
<br />
<br />
<b>Number Of Employees:</b><input type="number" max="20" min="1" name="noe" placeholder="1 - 20" /> <br /> <br />
<table>
<tr>
<td><b>Buisness Details:</b></td>
<td><input type="date" name="doe"
placeholder="Date Of Establishment" /></td>
</tr>
<tr>
<td></td>
<td><input type="number" name="a_tover" placeholder="ANNUAL TURNOVER" /></td>
</tr>
</table>
</form>
</center>
<script language="javascript">
function toggle(source) {
checkbox = document.getElementsByName('work');
for (var i = 0, n = checkbox.length; i < n; i++) {
checkbox[i].checked = source.checked;
}
}
</script>
</body>

<html>
<head>
<script>
var workdays=[0,0,0,0,0,0,0];
var days=["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"];
var allcheckbox = document.getElementsByName('work');
function checkcheckbox(arr,checked){
for (var i = 0; i < checked.length; i++) {
if(checked[i].checked){
arr[i]=1;
}else{
arr[i]=0;
}
}
console.log(arr);
}
function print(arr,days){
for (var i = 0; i < arr.length; i++) {
if(arr[i]==0){
console.log(days[i]+": close");
}else{
console.log(days[i]+": workday");
}
}
}
function toggle(source) {
checkbox = document.getElementsByName('work');
for (var i = 0, n = checkbox.length; i < n; i++) {
checkbox[i].checked = source.checked;
}
}
</script>
</head>
<body>
<center>
<form method="post" action="Acharges.php">
<table>
<tr>
<td colspan="4"><input type="checkbox" onclick="toggle(this)" name="day" /><b>All Day</b></td>
<td><b>Working</b></td>
</tr>
<tr>
<td colspan="4"><b>Monday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
<tr>
<td colspan="4"><b>Tuesday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
<tr>
<td colspan="4"><b>Wednesday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
<tr>
<td colspan="4"><b>Thursday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
<tr>
<td colspan="4"><b>Friday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
<tr>
<td colspan="4"><b>Saturday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
<tr>
<td colspan="4"><b>Sunday</b></td>
<td><input type="checkbox" name="work" value="work" /></td>
</tr>
</table>
<br />
<input type="button" value="SEND" onclick="checkcheckbox(workdays,allcheckbox)"/>
<input type="button" value="SEND" onclick="print(workdays,days)"/>
</form>
</center>
</body>
</html>

How to validate that at least one checkbox is checked in each set of checkboxes

I have a large group of checkboxes that are separated by two tables. Out of the two sets of checkboxes, I want the user to be required to check at least one checkbox in both sets before submitting a form (so, based on my code, at least one checkbox under COST and one under BENEFIT). I hope this makes sense. My code is below:
<body>
<h2 align="center">Cost/Benefit Matrix</h2>
<script type="text/javascript" src="http://localhost/mytesting/jquery-2.1.4.js"></script>
<style type="text/css">
p
{
font-family: "Arial";
align: center;
}
h2
{
font-family: "Arial";
}
</style>
<p>
<table border="1" align="center">
<tbody>
<tr>
<th><b>COST</b></th>
<th colspan="3">Reduced Cost</th>
<th>Neutral</th>
<th colspan="3">Increased Cost</th>
<th>Don't Know</th>
</tr>
<tr>
<th></th>
<th>High</th>
<th>Medium</th>
<th>Low</th>
<th>No effect</th>
<th>Low</th>
<th>Medium</th>
<th>High</th>
<th></th>
</tr>
<tr>
<td>Capital cost</td>
<td><input type="checkbox" id="matrix1" value="1"></td>
<td><input type="checkbox" id="matrix2" value="1"></td>
<td><input type="checkbox" id="matrix3" value="1"></td>
<td><input type="checkbox" id="matrix4" value="1"></td>
<td><input type="checkbox" id="matrix5" value="1"></td>
<td><input type="checkbox" id="matrix6" value="1"></td>
<td><input type="checkbox" id="matrix7" value="1"></td>
<td><input type="checkbox" id="matrix8" value="1"></td>
</tr>
<tr>
<td>Clinical operating cost</td>
<td><input type="checkbox" id="matrix9" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix10" value="1"></td>
<td><input type="checkbox" id="matrix11" value="1"></td>
<td><input type="checkbox" id="matrix12" value="1"></td>
<td><input type="checkbox" id="matrix13" value="1"></td>
<td><input type="checkbox" id="matrix14" value="1"></td>
<td><input type="checkbox" id="matrix15" value="1"></td>
<td><input type="checkbox" id="matrix16" value="1"></td>
</tr>
<tr>
<td>Facility operating cost</td>
<td><input type="checkbox" id="matrix17" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix18" value="1"></td>
<td><input type="checkbox" id="matrix19" value="1"></td>
<td><input type="checkbox" id="matrix20" value="1"></td>
<td><input type="checkbox" id="matrix21" value="1"></td>
<td><input type="checkbox" id="matrix22" value="1"></td>
<td><input type="checkbox" id="matrix23" value="1"></td>
<td><input type="checkbox" id="matrix24" value="1"></td>
</tr>
<tr>
<td>Energy cost</td>
<td><input type="checkbox" id="matrix25" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix26" value="1"></td>
<td><input type="checkbox" id="matrix27" value="1"></td>
<td><input type="checkbox" id="matrix28" value="1"></td>
<td><input type="checkbox" id="matrix29" value="1"></td>
<td><input type="checkbox" id="matrix30" value="1"></td>
<td><input type="checkbox" id="matrix31" value="1"></td>
<td><input type="checkbox" id="matrix32" value="1"></td>
</tr>
<br>
<br>
<table border="1" align="center">
<tbody>
<tr>
<th><b>BENEFIT</b></th>
<th colspan="3">Negative Impact</th>
<th>Neutral</th>
<th colspan="3">Positive Impact</th>
<th>Don't Know</th>
</tr>
<tr>
<th></th>
<th>High</th>
<th>Medium</th>
<th>Low</th>
<th>No effect</th>
<th>Low</th>
<th>Medium</th>
<th>High</th>
<th></th>
</tr>
<tr>
<td>Patient/staff safety</td>
<td><input type="checkbox" id="matrix33" value="1"></td>
<td><input type="checkbox" id="matrix34" value="1"></td>
<td><input type="checkbox" id="matrix35" value="1"></td>
<td><input type="checkbox" id="matrix36" value="1"></td>
<td><input type="checkbox" id="matrix37" value="1"></td>
<td><input type="checkbox" id="matrix38" value="1"></td>
<td><input type="checkbox" id="matrix39" value="1"></td>
<td><input type="checkbox" id="matrix40" value="1"></td>
</tr>
<tr>
<td>Fire/life safety</td>
<td><input type="checkbox" id="matrix41" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix42" value="1"></td>
<td><input type="checkbox" id="matrix43" value="1"></td>
<td><input type="checkbox" id="matrix44" value="1"></td>
<td><input type="checkbox" id="matrix45" value="1"></td>
<td><input type="checkbox" id="matrix46" value="1"></td>
<td><input type="checkbox" id="matrix47" value="1"></td>
<td><input type="checkbox" id="matrix48" value="1"></td>
</tr>
<tr>
<td>Clinical quality of care</td>
<td><input type="checkbox" id="matrix49" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix50" value="1"></td>
<td><input type="checkbox" id="matrix51" value="1"></td>
<td><input type="checkbox" id="matrix52" value="1"></td>
<td><input type="checkbox" id="matrix53" value="1"></td>
<td><input type="checkbox" id="matrix54" value="1"></td>
<td><input type="checkbox" id="matrix55" value="1"></td>
<td><input type="checkbox" id="matrix56" value="1"></td>
</tr>
<tr>
<td>Patient/resident experience</td>
<td><input type="checkbox" id="matrix57" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix58" value="1"></td>
<td><input type="checkbox" id="matrix59" value="1"></td>
<td><input type="checkbox" id="matrix60" value="1"></td>
<td><input type="checkbox" id="matrix61" value="1"></td>
<td><input type="checkbox" id="matrix62" value="1"></td>
<td><input type="checkbox" id="matrix63" value="1"></td>
<td><input type="checkbox" id="matrix64" value="1"></td>
</tr>
<tr>
<td>Operational efficiency</td>
<td><input type="checkbox" id="matrix65" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix66" value="1"></td>
<td><input type="checkbox" id="matrix67" value="1"></td>
<td><input type="checkbox" id="matrix68" value="1"></td>
<td><input type="checkbox" id="matrix69" value="1"></td>
<td><input type="checkbox" id="matrix70" value="1"></td>
<td><input type="checkbox" id="matrix71" value="1"></td>
<td><input type="checkbox" id="matrix72" value="1"></td>
</tr>
<tr>
<td>Sustainability</td>
<td><input type="checkbox" id="matrix73" value="1" style="vertical-align: middle"></td>
<td><input type="checkbox" id="matrix74" value="1"></td>
<td><input type="checkbox" id="matrix75" value="1"></td>
<td><input type="checkbox" id="matrix76" value="1"></td>
<td><input type="checkbox" id="matrix77" value="1"></td>
<td><input type="checkbox" id="matrix78" value="1"></td>
<td><input type="checkbox" id="matrix79" value="1"></td>
<td><input type="checkbox" id="matrix80" value="1"></td>
</tr>
<script type="text/javascript">
$('input[type="checkbox"]').on('change', function() {
// uncheck sibling checkboxes (checkboxes on the same row)
$(this).closest('tr').find('input').not(this).prop('checked', false);
// uncheck checkboxes in the same column
$('div').find('input[type="checkbox"]:eq(' + $(this).index() + ')').not(this).prop('checked', false);
});
</script>
</tbody>
</tbody>
</p>

You could add a class (like .checkbox) to each of your checkboxes and then perform something like this before submit -
if ($(".checkbox:checked").length > 0) {
//perform submit
}
else{
alert("check at least one checkbox!");
}

You could also use ".is: for more readability.
if ( $( '.checkbox' ).is( ':checked' ) ) {
// atleast one checked
} else {
// none checked
}
Example: https://jsfiddle.net/rr3vfymy/

First of all, your HTML isn't well-formed. You should close one table element before starting a new one.
Then start by distinguishing your tables by id, or at least by class, for example:
<table id="cost-table" border="1" align="center">
and then check, if at least one is checked. If you are using jQuery, you can use something like:
$( document ).ready( function() {
// you should use id on form too, this will bug if you have more forms on your page
$( "form" ).submit( function( event ) {
if( $( "#cost-table input[type=checkbox]:checked" ).length === 0 ) {
event.preventDefault();
//alert user here
alert('You need to select at least one cost type');
}
});
});
and the same for other types.

using ng-model with multiple ng-repeated radio button groups

See JsBin
I have a dynamic list of checkpoints which is generated from ng-repeat, each item has six radio buttons. I need to bind each of these sets to a $scope object.
Below, you can see I've set the name to things like selectedOption1, selectedOption2, etc... This allows each ng-repeated list to be independent of the next. Now, I need to bind the selected option of those selectedOptionX groups to a $scope object, while still maintaining the checkpoint.Name in the object.
<table>
<tbody>
<tr ng-repeat="checkpoint in checkpoints">
<td>{{checkpoint.Name}}</td>
<td><input type="radio" name="selectedOption{{$index}}" value="pass" /></td>
<td><input type="radio" name="selectedOption{{$index}}" value="fail" /></td>
<td><input type="radio" name="selectedOption{{$index}}" value="remediated" /></td>
<td><input type="radio" name="selectedOption{{$index}}" value="nc" ng-checked="true" /></td>
<td><input type="radio" name="selectedOption{{$index}}" value="na" /></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
The output object might be something like:
[
{
Name: "the first checkpoint",
Value: "remediated"
},
{
Name: "the second checkpoint",
Value: "fail"
},
{
Name: "the third checkpoint",
Value: "pass"
},
];
What I've tried...
<td><input type="radio" name="selectedOption{{$index}}" value="pass" ng-model="selectedOption{{$index}}"/></td>
//and
<td><input type="radio" name="selectedOption{{$index}}" value="pass" ng-model="selectedOption[$index]"/></td>
//and
<td><input type="radio" name="selectedOption{{$index}}" value="pass" ng-model="selectedOption.$index"/></td>
//and
<td><input type="radio" name="selectedOption{{$index}}" value="pass" ng-model="checkpoint.Name"/></td>
I've tried some other things, too, but nothing has come close.

http://jsbin.com/haxor/1/edit
<table>
<tbody>
<tr ng-repeat="checkpoint in checkpoints">
<td>{{checkpoint.Name}}</td>
<td><input type="radio" ng-model="checkpoint.selectedOption" value="pass" name="selectedOption{{$index}}"></td>
<td><input type="radio" ng-model="checkpoint.selectedOption" value="fail" name="selectedOption{{$index}}"></td>
<td><input type="radio" ng-model="checkpoint.selectedOption" value="remediated" name="selectedOption{{$index}}"></td>
<td><input type="radio" ng-model="checkpoint.selectedOption" value="nc" name="selectedOption{{$index}}" ng-checked="true"></td>
<td><input type="radio" ng-model="checkpoint.selectedOption" value="nc" ng-checked="true" name="selectedOption{{$index}}"></td>
<td><input type="radio" ng-model="checkpoint.selectedOption" value="x" name="selectedOption{{$index}}"></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>

Try this, it will setup selected value inside checkpoints object
http://jsbin.com/barufuhi/3/edit
<div ng-controller="CheckpointsController">
<table>
<tbody>
<tr ng-repeat="checkpoint in checkpoints">
<td>{{checkpoint.Name}}</td>
<td><input type="radio" ng-model="checkpoint.value" value="one"></td>
<td><input type="radio" ng-model="checkpoint.value" value="two"></td>
<td><input type="radio" ng-model="checkpoint.value" value="three"></td>
<td><input type="radio" ng-model="checkpoint.value" value="four"></td>
<td><input type="radio" ng-model="checkpoint.value" value="five"></td>
<td><input type="radio" ng-model="checkpoint.value" value="six"></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
</div>

Jquery Sum by Group from Table/Input Data

I'm looking to Group my Table data and Sum by the group (like sum price by product). In a second Table.
I want group or filter by Item column, and sum the result of the Price column.
So Oranges (having two lines) should be one line with Sum price.
See this example below:
<table width="400" border="1">
<tr>
<td>Item</td>
<td>Location</td>
<td>Quantity</td>
<td>Price</td>
</tr>
<tr>
<td><input name="item" type="text" id="item" value="Orange" /></td>
<td><input name="location" type="text" id="location" value="Tree" /></td>
<td><input name="quantity" type="text" id="quantity" value="3" /></td>
<td><input name="price" type="text" id="price" value="3.00" /></td>
</tr>
<tr>
<td><input name="item" type="text" id="item2" value="Apple" /></td>
<td><input name="location" type="text" id="location" value="Tree" /></td>
<td><input name="quantity" type="text" id="quantity" value="1" /></td>
<td><input name="price" type="text" id="price" value="1.00" /></td>
</tr>
<tr>
<td><input name="item" type="text" id="item" value="Orange" /></td>
<td><input name="location" type="text" id="location" value="Tree" /></td>
<td><input name="quantity" type="text" id="quantity" value="4" /></td>
<td><input name="price" type="text" id="price" value="4.00" /></td>
</tr>
<tr>
<td><input name="item" type="text" id="item" value="Grapes" /></td>
<td><input name="location" type="text" id="location" value="Vine" /></td>
<td><input name="quantity" type="text" id="quantity" value="10" /></td>
<td><input name="price" type="text" id="price" value="10.00" /></td>
</tr>
</table>
<p> </p>
<table width="400" border="1">
<tr>
<td>Orange</td>
<td>7</td>
<td>7.00</td>
</tr>
<tr>
<td>Apple</td>
<td>1</td>
<td>1.00</td>
</tr>
<tr>
<td>Grapes</td>
<td>10</td>
<td>10.00</td>
</tr>
</table>

First change id "price" to class, then
$(document).ready(function(){
var sum = 0;
$('.price').each(function(){
sum += $(this).val();
});
alert("The sum is " + sum);
});
You can modify above code to get sum in button click event too.