Develop Reference

Insert table header dynamically using javascript

I am trying to add a table header only once on to the top of a table. I have a code where I am able to generate header after inserting a row. I am missing the indexing here. where I am able to add header only after inserting the second row. Could you please help me fix a minor error here. I would not want to pass any object from html page.
var table = document.getElementById("Table");
// Empty tables
while(table.rows.length > 0) {table.deleteRow(0);}
// Add rows
for (var i = 1; i<data.Contents.length; i++) {
var row = table.insertRow(i-1);
var cell1 = row.insertCell(0), cell2 = row.insertCell(1),cell3 = row.insertCell(2),cell4 = row.insertCell(3),cell5 = row.insertCell(4),cell6 = row.insertCell(5),cell7 = row.insertCell(6);
var cell8 = row.insertCell(7), cell9 = row.insertCell(8),cell10 = row.insertCell(9),cell11 = row.insertCell(10),cell12 = row.insertCell(11),cell13 = row.insertCell(12),cell14 = row.insertCell(13);
//Code for header
var header = document.getElementById("Table").rows[0].cells;
header[0].innerHTML = " ";
header[1].innerHTML = " ";
header[2].innerHTML = "<b>NAME</b>";
header[4].innerHTML = "<b>MODIFIED</b>";
header[6].innerHTML = "<b>TIME</b>";
header[8].innerHTML = " ";
header[10].innerHTML = "<b>MORE</b>";
header[12].innerHTML = " ";
//column1: file icon
var btn_fileIcon = document.createElement("input");
btn_fileIcon.setAttribute("type","image");
btn_fileIcon.setAttribute("src","images/file.png");
btn_fileIcon.setAttribute("style","height:20px;width:20px");
cell2.appendChild(btn_fileIcon);
// column2: file name
cell3.innerHTML = data.Contents[i].Key.replace(folderName+'/', '');//data.Contents[i].Key;
// Time
var str = dateModified( data.Contents[i].LastModified);
cell5.innerHTML = " " + str;
cell5.setAttribute("style","padding-left: 4cm");
cell5.setAttribute("position","fixed");
cell5.style.textAlign = "center";
// size
var s = Math.round( data.Contents[i].Size/1024);
var fileSize = s.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
cell7.innerHTML = fileSize + " KB";
cell7.setAttribute("style","padding-left: 4cm");
cell7.setAttribute("position","fixed");
cell7.style.textAlign = "center";
// column3: download (csv)
var btn_download = document.createElement("input");
btn_download.setAttribute("type","image");
btn_download.setAttribute("src","images/download-button.png");
btn_download.setAttribute("style","height:20px;width:20px;margin-left: 100px;margin-right: 10px;");
btn_download.setAttribute("onclick","load2local(this);");
btn_download.fileName = data.Contents[i].Key;
cell9.appendChild(btn_download);
// column4: delete
var btn_delete = document.createElement("input");
btn_delete.setAttribute("type","image");
btn_delete.setAttribute("src","images/close-browser.png");
btn_delete.setAttribute("style","height:20px;width:20px;margin-left: 10px;margin-right: 10px;");
btn_delete.setAttribute("onclick","deleteObj(this);");
btn_delete.fileName = data.Contents[i].Key;
cell11.appendChild(btn_delete);
// load to NB
var btn_load2NB = document.createElement("input");
btn_load2NB.setAttribute("type","image");
btn_load2NB.setAttribute("src","images/eye.png");
btn_load2NB.setAttribute("style","height:25px;width:25px;margin-left: 10px;margin-right: 10px;");
btn_load2NB.fileName = data.Contents[i].Key;
btn_load2NB.setAttribute("onclick","load2NB(this);");
btn_load2NB.fileSize = data.Contents[i].Size;
cell13.appendChild(btn_load2NB);
// checkbox
var checkbox = document.createElement("input");
checkbox.setAttribute("type", "checkbox");
checkbox.setAttribute("name", "all");
checkbox.setAttribute("value", "ff");
checkbox.fileName = data.Contents[i].Key;
cell1.appendChild(checkbox);
checkbox.checked = false;
var element = document.createElement('hr');
// element.setAttribute("style","border: 1px solid black;text-align: left; margin-left: 2%; margin-right:2%;");
element.filename = data.Contents[i].Key;
cell14.appendChild(element);
}
Could you please help me to add a header once dynamically to a table?

This is one way to dynamically add table headers.
<html>
<script>
const tableHeaders = ['My Header1','My Header2','My Header3','My Header4'] // your header titles go here
function createNewTableHeader(headerTitle){
const temp = document.createElement('th');
temp.appendChild(document.createTextNode(headerTitle));
return temp
}
function addHeader() {
var tableHeaderPlaceHolder = document.getElementById('table-header-place-holder');
tableHeaders.forEach(header=>{
tableHeaderPlaceHolder.appendChild(createNewTableHeader(header));
})
}
document.addEventListener("DOMContentLoaded", function(event) {
addHeader();
});
</script>
<body>
<table id='table' cellspacing="20">
<tbody>
<tr id='table-header-place-holder'>
</tr>
</tbody>
<tbody>
<tr>
<td>data1</td>
<td>data2</td>
<td>data3</td>
<td>data4</td>
</tr>
<tr>
<td>data1</td>
<td>data2</td>
<td>data3</td>
<td>data4</td>
</tr>
</tbody>
</table>
</body>
</html>

jQuery/Javascript compare two tables against each other

I need to compare two HTML tables' rows assuming that data in first cell can be duplicated but data in second cell is always unique. I need to find whether first cell AND second cell in table1 is the same as data in first cell AND second cell in table2 for instance:
Table1:
<Table>
<tr>
<td>123</td>
<td>321</td>
</tr>
<tr>
<td>545</td>
<td>345</td>
</tr>
<tr>
<td>0</td>
<td>312</td>
</tr>
<tr>
<td>123</td>
<td>323331</td>
</tr>
</Table>
Second table:
<table>
<tr>
<td>545</td>
<td>345</td>
</tr>
<tr>
<td>545</td>
<td>3122</td>
</tr>
<tr>
<td>123</td>
<td>321</td>
</tr>
</table>
The result of this should be:
123 321 - good, do nothing
545 345 - good, do nothing
545 3122 - wrong its not in table1 <-
Here's what I've got so far...
$('#runCheck').click(function(){
var firstTable = $('#firstDiv table tr');
var secondTable = $('#secDiv table tr');
$(secondTable).each(function(index){
var $row = $(this);
var secTableCellZero = $row.find('td')[0].innerHTML;
var secTableCellOne = $row.find('td')[1].innerHTML;
$(firstTable).each(function(indexT){
if ($(this).find('td')[0].innerHTML === secTableCellZero){
if ($(this).find('td')[1].innerHTML !== secTableCellOne){
$('#thirdDiv').append("first: " + secTableCellZero + " second: " + secTableCellOne+"<br>");
}
}
});
});
});
Where am I going it wrong?
Just to clarify once again:
2nd table says :
row1 - john|likesCookies
row2 - peter|likesOranges
1st table says :
row1 - john|likesNothing
row2 - john|likesCookies
row3 - steward|likesToTalk
row4 - peter|likesApples
now it should say :
john - value okay
peter - value fail.
a lot alike =VLOOKUP in excel

Check this working fiddle : here
I've created two arrays which store values in each row of tables 1 and 2 as strings. Then I just compare these two arrays and see if each value in array1 has a match in array 2 using a flag variable.
Snippet :
$(document).ready(function() {
var table_one = [];
var table_two = [];
$("#one tr").each(function() {
var temp_string = "";
count = 1;
$(this).find("td").each(function() {
if (count == 2) {
temp_string += "/";
}
temp_string = temp_string + $(this).text();
count++;
});
table_one.push(temp_string);
});
$("#two tr").each(function() {
var temp_string = "";
count = 1;
$(this).find("td").each(function() {
if (count == 2) {
temp_string += "/";
temp_string = temp_string + $(this).text();
} else {
temp_string = temp_string + $(this).text();
}
count++;
});
table_two.push(temp_string);
});
var message = "";
for (i = 0; i < table_two.length; i++) {
var flag = 0;
var temp = 0;
table_two_entry = table_two[i].split("/");
table_two_cell_one = table_two_entry[0];
table_two_cell_two = table_two_entry[1];
for (j = 0; j < table_one.length; j++) {
table_one_entry = table_one[j].split("/");
table_one_cell_one = table_one_entry[0];
table_one_cell_two = table_one_entry[1];
console.log("1)" + table_one_cell_one + ":" + table_one_cell_two);
if (table_two_cell_one == table_one_cell_one) {
flag++;
if (table_one_cell_two == table_two_cell_two) {
flag++;
break;
} else {
temp = table_one_cell_two;
}
} else {}
}
if (flag == 2) {
message += table_two_cell_one + " " + table_two_cell_two + " found in first table<br>";
} else if (flag == 1) {
message += table_two_cell_one + " bad - first table has " + temp + "<br>";
} else if (flag == 0) {
message += table_two_cell_one + " not found in first table<br>";
}
}
$('#message').html(message);
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<hr>
<table id="one">
<tr>
<td>123</td>
<td>321</td>
</tr>
<tr>
<td>545</td>
<td>345</td>
</tr>
<tr>
<td>0</td>
<td>312</td>
</tr>
<tr>
<td>123</td>
<td>323331</td>
</tr>
</table>
<hr>
<table id="two">
<tr>
<td>545</td>
<td>345</td>
</tr>
<tr>
<td>545</td>
<td>3122</td>
</tr>
<tr>
<td>123</td>
<td>321</td>
</tr>
</table>
<hr>
<div id="message">
</div>
</div>

If I understand your requirements, it would be easier to read the first table and store the couples as strings: 123/321, 545/345, etc...
Than you can read the second table and remove from the first list all the rows found in both.
What remains in the list are couples that do not match.

From purely an efficiency standpoint if you loop through the first table just once and create an object using the first cell value as keys and an array of values for second cells, you won't have to loop through that table numerous times
this then makes the lookup simpler also
var firstTable = $('#firstDiv table tr');
var secondTable = $('#secDiv table tr');
var firstTableData = {}
firstTable.each(function() {
var $tds = $(this).find('td'),
firstCellData = $tds.eq(0).html().trim(),
secondCellData == $tds.eq(1).html().trim();
if (!firstTableData[firstCellData]) {
firstTableData[firstCellData] = []
}
firstTableData[firstCellData].push(secondCellData)
})
$(secondTable).each(function(index) {
var $tds = $(this).find('td');
var secTableCellZero = $tds.eq(0).html().trim();
var secTableCellOne = $tds.eq(1).html().trim();
if (!firstTableData.hasOwnProperty(secTableCellZero)) {
console.log('No match for first cell')
} else if (!firstTableData[secTableCellZero].indexOf(secTableCellOne) == -1) {
console.log('No match for second cell')
}
});
I'm not sure what objective is when matches aren't found

Updating row ID when swapping HTML table rows

I've been messing with manipulating HTML tables for the past few weeks and I've come across a problem I am not sure how to fix. So the collection of rows for a table can be iterated over like an array, but if you've switched out the rows a lot, won't the IDs be mixed and doesn't the browser rely on the IDs as the way to iterate over the row objects? I'm running into a problem (probably due to a lack of understanding) where the rows eventually stop moving or one row gets duplicated on top of another. Should I somehow be updating the row's ID each time it is moved? Here is my source so far for this function.
function swap(rOne, rTwo, tblID) {
tblID.rows[rOne].setAttribute('style', 'background-color:#FFFFFF');
var tBody = tblID.children[0];
var rowOne;
var rowTwo;
if (rOne > rTwo) {
rowOne = rOne;
rowTwo = rTwo;
}
else {
rowOne = rTwo;
rowTwo = rOne;
}
var swapTempOne = tblID.rows[rowOne].cloneNode(true);
var swapTempTwo = tblID.rows[rowTwo].cloneNode(true);
hiddenTable.appendChild(swapTempOne);
hiddenTable.appendChild(swapTempTwo);
tblID.deleteRow(rowOne);
var rowOneInsert = tblID.insertRow(rowOne);
var rowOneCellZero = rowOneInsert.insertCell(0);
var rowOneCellOne = rowOneInsert.insertCell(1);
var rowOneCellTwo = rowOneInsert.insertCell(2);
var rowOneCellThree = rowOneInsert.insertCell(3);
rowOneCellZero.innerHTML = hiddenTable.rows[2].cells[0].innerHTML;
rowOneCellOne.innerHTML = hiddenTable.rows[2].cells[1].innerHTML;
rowOneCellTwo.innerHTML = hiddenTable.rows[2].cells[2].innerHTML;
rowOneCellThree.innerHTML = hiddenTable.rows[2].cells[3].innerHTML;
tblID.deleteRow(rowTwo);
var rowTwoInsert = tblID.insertRow(rowTwo);
var rowTwoCellZero = rowTwoInsert.insertCell(0);
var rowTwoCellOne = rowTwoInsert.insertCell(1);
var rowTwoCellTwo = rowTwoInsert.insertCell(2);
var rowTwoCellThree = rowTwoInsert.insertCell(3);
rowTwoCellZero.innerHTML = hiddenTable.rows[1].cells[0].innerHTML;
rowTwoCellOne.innerHTML = hiddenTable.rows[1].cells[1].innerHTML;
rowTwoCellTwo.innerHTML = hiddenTable.rows[1].cells[2].innerHTML;
rowTwoCellThree.innerHTML = hiddenTable.rows[1].cells[3].innerHTML;
tblID.rows[rowOne].setAttribute('onclick', 'chkThis(event, this)');
tblID.rows[rowTwo].setAttribute('onclick', 'chkThis(event, this)');
for (iHiddenDelete = 2; iHiddenDelete >= 1; iHiddenDelete--) {
hiddenTable.deleteRow(iHiddenDelete);
}
}
EDIT: Adding HTML for page and the function for moving between tables which I suspect is causing the issue.
<body>
<form>
<input value="0" type="text" id="cubesum" size="5"/>
<input value="0" type="text" id="wgtsum" size="5"/>
</form>
<form>
<table id="tblSource">
<thead>
<tr>
<th> </th>
<th>Order</th>
<th>Cube</th>
<th>Weight</th>
<th>Move</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<button type="button" onclick="move('tblSource','tblTarget')" style="width: 58px">To Trucks (Down)</button>
<button type="button" onclick="move('tblTarget', 'tblSource')" style="width: 58px">To Orders (Up)</button>
</form>
<form>
<table id="tblTarget">
<thead>
<tr>
<th> </th>
<th>Order</th>
<th>Cube</th>
<th>Weight</th>
<th>Move</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</form>
<table id="hiddenTable" style="display: none"> <!--this table is hidden! -->
<thead>
<tr>
<th> </th>
<th>Order</th>
<th>Cube</th>
<th>Weight</th>
<th>Move</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</body>
</html>
FUNCTION STARTS HERE
function move(from, to) {
var frTbl = document.getElementById(from);
var toTbl = document.getElementById(to);
chkArray.length = 0;
cbsMove = frTbl.getElementsByTagName('input');
for (var oChk = 0; oChk < cbsMove.length; oChk++) {
if (cbsMove[oChk].type == 'checkbox') {
if (cbsMove[oChk].checked == true) {
var prntRow = cbsMove[oChk].parentNode.parentNode;
var prntRowIdx = prntRow.rowIndex;
chkArray.push(prntRowIdx);
cbsMove[oChk].checked = false;
}
}
}
for (iMove = chkArray.length -1; iMove >= 0; iMove--) {
var num = chkArray[iMove];
var row = frTbl.rows[num];
var cln = row.cloneNode(true);
toTbl.appendChild(cln);
frTbl.deleteRow(num);
}
sum();
}

So it turns out that my row cloning for moving between tables was causing malformed HTML where the rows would not longer be inside the table body tags. In addition, not trusting the browser to keep track of the button IDs and using the button IDs to setAttributes to the button also caused button ID overlap eventually. So, I got rid of the node cloning and did the row moving between tables the manual way and used innerHTML to add the function call inside the buttons. Upon further reflection, I've come to learn that some people actually make functions that handle ALL button clicks without calling them inside the button and route them to the proper function depending on the ID or other factors such as parent nodes of the button. Perhaps that is best. The main trick here is to STICK TO ONE METHOD. I was all over the place in how I manipulated the tables and it broke things. Here is the working source for those looking to do similar things.
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<style type="text/css">
#selectSource {
width: 320px;
}
#selectTarget {
width: 320px;
}
table, th, td
{
border: 1px solid black;
}
</style>
<title>Loader</title>
<script>
var chkArray = [];
var data = [];
var tmpArray = [];
var iChk = 0;
var swap;
window.onload = function () {
var load = document.getElementById('selectSource')
loadFromAJAX();
}
function loadFromAJAX()
{
var xmlhttp;
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
var rawData = xmlhttp.responseText;
data = JSON.parse(rawData);
for (iData = 0; iData < data.length; iData++) {
newRow = document.getElementById('tblSource').insertRow(iData + 1);
var dn = "dn" + (iData + 1);
var up = "up" + (iData + 1);
cel0 = newRow.insertCell(0);
cel1 = newRow.insertCell(1);
cel2 = newRow.insertCell(2);
cel3 = newRow.insertCell(3);
cel4 = newRow.insertCell(4);
cel0.innerHTML = "<input type='checkbox' name='chkbox'>";
cel1.innerHTML = data[iData].num;
cel2.innerHTML = data[iData].cube;
cel3.innerHTML = data[iData].wgt;
cel4.innerHTML = "<button type='button' onclick=moveUp(this)>up</button><button type='button' onclick=moveDn(this)>down</button>";
}
}
}
xmlhttp.open("POST","http://192.168.3.2/cgi-bin/rims50.cgi/json.p",true);
xmlhttp.send();
}
function moveUp(mvThisRow) {
var mvThisRowRow = mvThisRow.parentNode.parentNode;
var mvThisRowTbl = mvThisRowRow.parentNode.parentNode;
var mvThisRowIndex = mvThisRowRow.rowIndex;
var mvThisRowTblLngth = mvThisRowTbl.rows.length;
var mvFrRow = mvThisRowTbl.rows[mvThisRowIndex];
var mvToRow = mvThisRowIndex - 1;
var mvThisDn = "dn" + (mvToRow) + mvThisRowTbl;
var mvThisUp = "up" + (mvToRow) + mvThisRowTbl;
if (mvThisRowIndex - 1 !== 0) {
moveToRow = mvThisRowTbl.insertRow(mvToRow);
mvRowCel0 = moveToRow.insertCell(0);
mvRowCel1 = moveToRow.insertCell(1);
mvRowCel2 = moveToRow.insertCell(2);
mvRowCel3 = moveToRow.insertCell(3);
mvRowCel4 = moveToRow.insertCell(4);
mvRowCel0.innerHTML = "<input type='checkbox' name='chkbox'>";
mvRowCel1.innerHTML = mvFrRow.cells[1].innerHTML;
mvRowCel2.innerHTML = mvFrRow.cells[2].innerHTML;
mvRowCel3.innerHTML = mvFrRow.cells[3].innerHTML;
mvRowCel4.innerHTML = "<button type='button' onclick=moveUp(this)>up</button><button type='button' onclick=moveDn(this)>down</button>";
mvThisRowTbl.deleteRow(mvThisRowIndex +1);
}
else {
alert("You can't move the top row 'up' try moving it 'down'.");
}
}
function moveDn(mvThisRow) {
var mvThisRowRow = mvThisRow.parentNode.parentNode;
var mvThisRowTbl = mvThisRowRow.parentNode.parentNode;
var mvThisRowTblLngth = mvThisRowTbl.rows.length;
var mvThisRowIndex = mvThisRowRow.rowIndex;
if (mvThisRowIndex + 1 !== mvThisRowTblLngth) {
var mvFrRow = mvThisRowTbl.rows[mvThisRowIndex];
var mvToRow = mvThisRowIndex + 2;
var moveToRow = mvThisRowTbl.insertRow(mvToRow);
var dn = "dn" + (mvToRow) + mvThisRowTbl;
var up = "up" + (mvToRow) + mvThisRowTbl;
mvRowCel0 = moveToRow.insertCell(0);
mvRowCel1 = moveToRow.insertCell(1);
mvRowCel2 = moveToRow.insertCell(2);
mvRowCel3 = moveToRow.insertCell(3);
mvRowCel4 = moveToRow.insertCell(4);
mvRowCel0.innerHTML = "<input type='checkbox' name='chkbox'>";
mvRowCel1.innerHTML = mvFrRow.cells[1].innerHTML;
mvRowCel2.innerHTML = mvFrRow.cells[2].innerHTML;
mvRowCel3.innerHTML = mvFrRow.cells[3].innerHTML;
mvRowCel4.innerHTML = "<button type='button' onclick=moveUp(this)>up</button><button type='button' onclick=moveDn(this)>down</button>";
mvThisRowTbl.deleteRow(mvThisRowIndex);
}
else {
alert("You can't move the bottom row 'down' try moving it 'up'.");
}
}
function sum() {
var trgTbl = document.getElementById('tblTarget');
var tblLength = trgTbl.rows.length;
var sumAddCube = 0;
var sumAddWgt = 0;
document.getElementById("cubesum").setAttribute("value", sumAddCube);
document.getElementById("wgtsum").setAttribute("value", sumAddWgt);
for (iSum = 1; iSum < tblLength; iSum++) {
celCubeNum = trgTbl.rows[iSum].cells[2].innerHTML;
celWgtNum = trgTbl.rows[iSum].cells[3].innerHTML;
sumAddCube = parseInt(sumAddCube) + parseInt(celCubeNum);
sumAddWgt = parseInt(sumAddWgt) + parseInt(celWgtNum);
}
document.getElementById("cubesum").setAttribute("value", sumAddCube);
document.getElementById("wgtsum").setAttribute("value", sumAddWgt);
}
function move(from, to) {
var frTbl = document.getElementById(from);
var toTbl = document.getElementById(to);
chkArray.length = 0;
cbsMove = frTbl.getElementsByTagName('input');
for (var oChk = 0; oChk < cbsMove.length; oChk++) {
if (cbsMove[oChk].type == 'checkbox') {
if (cbsMove[oChk].checked == true) {
var prntRow = cbsMove[oChk].parentNode.parentNode;
var prntRowIdx = prntRow.rowIndex;
chkArray.push(prntRowIdx);
cbsMove[oChk].checked = false;
}
}
}
for (iMove = chkArray.length -1; iMove >= 0; iMove--) {
var num = chkArray[iMove];
var row = frTbl.rows[num];
var toRow = toTbl.rows.length
moveRow = toTbl.insertRow(toRow);
var dn = "dn" + (toRow) + toTbl;
var up = "up" + (toRow) + toTbl;
mvCel0 = moveRow.insertCell(0);
mvCel1 = moveRow.insertCell(1);
mvCel2 = moveRow.insertCell(2);
mvCel3 = moveRow.insertCell(3);
mvCel4 = moveRow.insertCell(4);
mvCel0.innerHTML = "<input type='checkbox' name='chkbox'>";
mvCel1.innerHTML = row.cells[1].innerHTML;
mvCel2.innerHTML = row.cells[2].innerHTML;
mvCel3.innerHTML = row.cells[3].innerHTML;
mvCel4.innerHTML = "<button type='button' onclick=moveUp(this)>up</button><button type='button' onclick=moveDn(this)>down</button>";
frTbl.deleteRow(num);
}
sum();
}
</script>
</head>
<body>
<form>
<input value="0" type="text" id="cubesum" size="5"/>
<input value="0" type="text" id="wgtsum" size="5"/>
</form>
<form>
<table id="tblSource">
<thead>
<tr>
<th> </th>
<th>Order</th>
<th>Cube</th>
<th>Weight</th>
<th>Move</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<button type="button" onclick="move('tblSource','tblTarget')" style="width: 58px">To Trucks (Down)</button>
<button type="button" onclick="move('tblTarget', 'tblSource')" style="width: 58px">To Orders (Up)</button>
</form>
<form>
<table id="tblTarget">
<thead>
<tr>
<th> </th>
<th>Order</th>
<th>Cube</th>
<th>Weight</th>
<th>Move</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</form>
<table id="hiddenTable" style="display: none"> <!--this table is hidden! -->
<thead>
<tr>
<th> </th>
<th>Order</th>
<th>Cube</th>
<th>Weight</th>
<th>Move</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
</body>
</html>

HTML Table cell - Recovering Values

I have a html table with a dynamic rows list, When I delete one of these rows I want to recover the value of the column 3 on the selected row to change an output text with the total value...
How do I do it with jquery or javascript ?
<div id="ven_mid">
<table id="tbprodutos" style="width:80%;margin:0 auto;float:left;text-align:center;">
<tr class="titulo">
<th>Referência</th>
<th>Numeração</th>
<th>Qtd</th>
<th>Valor - R$</th>
<th>Código</th>
<th>-</th>
</tr>
</table>
</div>
<script>
function deleteRow(i){
// here i need to remove the value "valor"
// of the selected row of the total.
document.getElementById('tbprodutos').deleteRow(i);
}
</script>
--- Add Row Script ---
<script>
$('#ven_prod').keypress(function (e)
{
if(e.keyCode==13)
{
var table = document.getElementById('tbprodutos');
var tblBody = table.tBodies[0];
var newRow = tblBody.insertRow(-1);
var prod = document.getElementById('ven_prod').value;
var qtd = document.getElementById('ven_qtd');
var barra = prod.substring(0, 12);
var num = prod.substring(14, 16);
var ref = "";
var valor = "";
var id = "";
var cor = "";
var mat = "";
var tot = document.getElementById('valortotal').value;
$.ajax({
type: "POST",
url: "System/ProcessaProdutos.jsp",
data: "pro_barras="+barra,
success: function(data){
var retorno = data.split(" ");
ref = (retorno[0]);
valor = (retorno[1]);
id = (retorno[2]);
mat = (retorno[3]);
cor = (retorno[4]);
if(prod.length==16) {
var newCell0 = newRow.insertCell(0);
newCell0.innerHTML = '<td>Ref: '+ref+' - '+mat+' '+cor+'</td>';
var newCell1 = newRow.insertCell(1);
newCell1.innerHTML = '<td>'+num+'</td>';
var newCell2 = newRow.insertCell(2);
newCell2.innerHTML = '<td>'+qtd.value+'</td>';
var newCell3 = newRow.insertCell(3);
newCell3.innerHTML = '<td class="tbvalor">'+valor+'</td>';
var newCell4 = newRow.insertCell(4);
newCell4.innerHTML = '<td>'+barra+'</td>';
var newCell5 = newRow.insertCell(5);
newCell5.innerHTML = '<td><input type="button" value="Remover" onclick="deleteRow(this.parentNode.parentNode.rowIndex)"/></td>';
document.getElementById('ref').value = 'Referência: '+ref+' - '+mat+' '+cor;
document.getElementById('imgsrc').src = './?acao=Img&pro_id='+id;
updateTotal();
document.getElementById('ven_prod').value = '';
document.getElementById('ven_qtd').value = '1';
} else {
document.getElementById('ven_prod').value = '';
document.getElementById('ven_qtd').value = '1';
alert("Código de barras inválido!");
}
}
});
return false;
}
});
</script>
--- New "update total" function that solved the problem --
function updateTotal(){
var total = 0;
var rows = $("#tbprodutos tr:gt(0)");
rows.children("td:nth-child(4)").each(function() {
total += parseInt($(this).text());
});
document.getElementById('valortotal').value = total;
}

To expand on what Bartdude said, here is a more usable example. Lets say you have a table with the structure
<table id = 'tableData'>
<tr>
<th>Column 1</th>
<th>Column 2</th>
<th>Column 3</th>
<th>Column 4</th>
<th>Column 5</th>
</tr>
<tr>
<td class = 'col1'>1.1</td>
<td class = 'col2'>1.2</td>
<td class = 'col3'>1.3</td>
<td class = 'col4'>1.4</td>
<td class = 'col5'>1.5</td>
</tr>
</table>
Each time a delete operation occurs, you can just grab all the existing values and execute a sum or what mathematical operation you use and return the value
function updateTotal(){
var total = 0;
//loop over all table rows
$("#tableData").find("tr").each(function(){
//get all column 3 values and sum them for a total
total += $(this).find("td.col3").text();
}
return total;
}

Jquery - Sum of each same class li value

Currently I'm Developing an Invoice app with php , mysql & jquery. I want to show some details with jquery. I have dynamically created tables with dynamic data.
<table class="report_table">
<tr>
<td class="items_id">
<ul>
<li class="KKTF0">KKTF0</li>
<li class="PEN01">PEN01</li>
</ul>
</td>
<td class="items_qty">
<ul>
<li class="KKTF0">1</li>
<li class="PEN01">2</li>
</ul>
</td>
</tr>
</table>
<table class="report_table">
<tr>
<td class="items_id">
<ul>
<li class="BKK01">BKK01</li>
<li class="KKTF0">KKTF0</li>
<li class="PEN01">PEN01</li>
</ul>
</td>
<td class="items_qty">
<ul>
<li class="BKK01">4</li>
<li class="KKTF0">2</li>
<li class="PEN01">3</li>
</ul>
</td>
</tr>
</table>
li classes are dynamically created. my jquery code
jQuery(document).ready(function() {
$('.report_table').each(function() {
$('.items_id ul li').each(function() {
$(this).addClass($(this).text());
var className = $(this).attr("class");
$(this).parents('tr').find('td.items_qty li').eq($(this).index()).addClass(className);
});
});
});
I want this result
<table>
<tr>
<th>Item Id</th>
<th>Sum of Item</th>
</tr>
<tr>
<td>KKTF0</td>
<td>3</td>
</tr>
<tr>
<td>PEN01</td>
<td>5</td>
</tr>
<tr>
<td>BKK01</td>
<td>4</td>
</tr>
</table>
I don't have any idea. please help me... Thanks.

Pretty short solution:
var data = {};
$('.report_table .items_qty li').each(function() {
data[this.className] = (data[this.className] || 0) + +$(this).text();
});
var table = '<table class="result"><tr><tr><th>Item Id</th><th>Sum of Item</th></tr>' +
$.map(data, function(qty, key) {
return '<td>' + key + '</td><td>' + qty + '</td>';
}).join('</tr><tr>') + '</tr></table>';
http://jsfiddle.net/VF7bz/
Brief explanation:
1). each collects the data into an object:
{"KKTF0":3,"PEN01":5,"BKK01":4}
2). map creates an array:
["<td>KKTF0</td><td>3</td>","<td>PEN01</td><td>5</td>","<td>BKK01</td><td>4</td>"]
3). array items are joined into a string using </tr><tr> as separator.

Create an array of "items" and increment the associated quantity of each as you loop through every li. Then output the table.
function sum() {
// This will hold each category and value
var sums = new Array();
$('li').each(function() {
var item = new Object();
// Get category
item.category = $(this).attr('class');
// Get count
if (isFinite($(this).html())) {
item.count = parseInt($(this).html());
}
else {
// Skip if not a number
return;
}
// Find matching category
var exists = false;
for (var i = 0; i < sums.length; i++) {
if (sums[i].category == item.category) {
exists = true;
break;
}
}
// Increment total count
if (exists) {
sums[i].count += item.count;
}
else {
// Add category if it doesn't exist yet
sums.push(item);
}
});
var table = '<table><tr><th>Item Id</th><th>Sum of Item</th></tr><tbody>';
// Add rows to table
for (var i = 0; i < sums.length; i++) {
table += '<tr><td>' + sums[i].category + '</td><td>'
+ sums[i].count + '</td></tr>';
}
// Close table
table += '</tbody></table>';
// Append table after the last table
$('table :last').after(table);
}

Please omit the jquery code that you have posted in your question and use the one below:
Complete Jquery Solution:
Tested and Working
$(document).ready(function() {
//Create table to fill with data after last report table
$('<table id="sumtable"><th>Item Id</th><th>Sum of Item</th></table>').insertAfter($('.report_table').last());
//Loop through each report table, fetch amount and update sum in '#sumtable'
$('.report_table').each(function(){
var currtable = $(this);
$(this).find('.items_id ul li').each(function(){
//cache obj for performance
var curritem = $(this);
var itemid = curritem.html();
var itemvalue = parseInt(currtable.find('.items_qty ul li:eq('+curritem.index()+')').html());
var sumrow = $('#sumtable tbody').find('tr.'+itemid);
if(sumrow.length == 0){
//no rows found for this item id in the sum table, let's insert it
$('#sumtable tbody').append('<tr class="'+itemid+'"><td>'+itemid+'</td><td>'+itemvalue+'</td></tr>');
} else {
//Row found, do sum of value
sumrow.find('td').eq(1).html(parseInt(sumrow.find('td').eq(1).html())+itemvalue);
console.log(sumrow.find('td').eq(1).html());
}
});
})
});
DEMO: http://jsfiddle.net/N3FdB/

I am using .each loop on all li and store the values in the Object variable as key-value pairs.
Then, looping over created object properties building the desired table.
var resultObj = {};
$('li').each(function (idx, item) {
var $item = $(item);
var prop = $item.attr('class');
if (!resultObj[prop]) {
resultObj[prop] = 0;
}
var parsedVal = parseInt($item.text(), 10);
resultObj[prop] += isNaN(parsedVal) ? 0 : parsedVal;
});
var $resultTable = $('<table />');
$resultTable.append('<tr><th>Item Id</th><th>Sum of Item</th></tr>');
for (var key in resultObj) {
var $row = $('<tr />');
$row.append($('<td />', {
text: key
}))
.append($('<td />', {
text: resultObj[key]
}));
$resultTable.append($row);
}
$('body').append($resultTable);
Have a look at this FIDDLE.