Hide rows in table B which already appear in table A - javascript

Using this code :
var table1 = $('#TableA').find('td:eq(1)').text();
var table2 = $("#TableB tr:gt(0)");
table2.each(function (i) {
var tds = $(this).children('td');
var type= +tds.eq(0).text();
var price = +tds.eq(1).text();
if (price == table1) {
var myTable = table2.filter(function () {
var tds = $(this).children('td');
})
myTable.add(this).hide()
}
})
My Html Page Structure
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<table id="TableA">
<tr>
<th>Type</th>
<th>Price</th>
<th>Quantity</th>
<th>Ref No</th>
</tr>
<tr>
<td>Mouse</td>
<td>50</td>
<td>6</td>
<td>#101255</td>
</tr>
<tr>
<td>Speaker</td>
<td>300</td>
<td>6</td>
<td>#21165</td>
</tr>
</table>
<table id="TableB">
<tr>
<th>Type</th>
<th>Price</th>
<th>Quantity</th>
<th>Ref No</th>
</tr>
<tr>
<td>Mouse</td>
<td>50</td>
<td>6</td>
<td>#101255</td>
</tr>
<tr>
<td>Speaker</td>
<td>300</td>
<td>6</td>
<td>#21165</td>
</tr>
<tr>
<td>Keyboard</td>
<td>150</td>
<td>7</td>
<td>#31234</td>
</tr>
</table>
</body>
</html>
"The second table in the images is the Table B"
My Table B changes from this :
Before
To this : After
Now my problem is, only one row is hidden. The row, where "speaker" is, is still displayed. I know that I must use a loop for this, but I don't where to implement the loop and how. I'm a newbie programmer and I know that I need more practice. Please Help Thank you in advance


<script type="text/javascript">
$('body').click(function(e){
var table1_tr = $('#TableA').find('tr'); <!--get the rows of first table-->
var table2 = $("#TableB tr:gt(0)");
table1_tr.each(function(i,e){ <!-- loop through rows of first table -->
var table1 = $(e).find('td:eq(1)').text();
table2.each(function (i) {
var tds = $(this).children('td');
var type= +tds.eq(0).text();
var price = +tds.eq(1).text();
if (price == table1) {
var myTable = table2.filter(function () {
var tds = $(this).children('td');
})
myTable.add(this).hide()
}
});
})
});
</script>
you are checking the text of price in the first row of first table with td text of all the rows of second table
I modified script to loop through rows of first table and check them with all rows of second table
Hope this helps

Related

Hide empty html table rows

Problem
I have a table with one or more empty rows. How to hide empty rows from the table?
For example
1 - John | Alfredo
2 - Mark | Zuck
3 - |
4 - Carl | Johnson
In this case, I'd like to delete the third row.
Step Tried
I found how to delete a specific row, what about deleting all the empty rows?
deleteEmptyRows();
function deleteEmptyRows() {
var myTable = document.getElementById("myTable")
var rowToDelete = 2;
myTable.deleteRow(rowToDelete)
}
<table border="1" cellspacing="1" cellpadding="1" id ="myTable">
<tbody>
<tr>
<td>John</td>
<td>Alfredo</td>
</tr>
<tr>
<td>Mark</td>
<td>Zuck</td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>Carl</td>
<td>Johnson</td>
</tr>
</tbody>
</table>

This is how you can dynamically hide empty table rows with javascript.
deleteEmptyRows();
function checkIfCellsAreEmpty(row) {
var cells = row.cells;
var isCellEmpty = false;
for(var j = 0; j < cells.length; j++) {
if(cells[j].innerHTML !== '') {
return isCellEmpty;
}
}
return !isCellEmpty;
}
function deleteEmptyRows() {
var myTable = document.getElementById("myTable");
for(var i = 0; i < myTable.rows.length; i++) {
var isRowEmpty = checkIfCellsAreEmpty(myTable.rows[i]);
if (isRowEmpty) {
myTable.rows[i].style.display = "none";
}
}
}
<table border="1" cellspacing="1" cellpadding="1" id ="myTable">
<tbody>
<tr>
<td>John</td>
<td>Alfredo</td>
</tr>
<tr>
<td>Mark</td>
<td>Zuck</td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>Carl</td>
<td>Johnson</td>
</tr>
</tbody>
</table>

Here, a simple method for row is empty (this allows us to check for other conditions easily later).
Loop over rows and call remove if empty.
const rowIsEmpty = (tr) => Array.from(tr.querySelectorAll('td')).every(td => td.innerText === "");
deleteEmptyRows();
function deleteEmptyRows() {
var myTable = document.getElementById("myTable");
myTable.querySelectorAll('tr').forEach(tr => {
if(rowIsEmpty(tr)) tr.remove();
});
}
<table border="1" cellspacing="1" cellpadding="1" id ="myTable">
<tbody>
<tr>
<td>John</td>
<td>Alfredo</td>
</tr>
<tr>
<td>Mark</td>
<td>Zuck</td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>Carl</td>
<td>Johnson</td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
</tbody>
</table>

Was answered in another thread.
Jquery: hiding empty table rows
Loops through all table tr rows, and checks td lengths. If the td length is empty will hide.
$("table tr").each(function() {
let cell = $.trim($(this).find('td').text());
if (cell.length == 0){
console.log('Empty cell');
$(this).addClass('nodisplay');
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
</tr>
<tr>
<!-- Will hide --> <td></td>
</tr>
</table>

With native Javascript:
function removeRow(src) {
var tableRows = document.getElementById(src).querySelectorAll('tr');
tableRows.forEach(function(row){
if((/^\s*$/).test(row.innerText)){
row.parentNode.removeChild(row);
}
});
}
removeRow('myTable');
The only problem is when you have some other characters in the row, except the whitespaces. This regex checks for blank characters, but if u have a dot inside or any other non empty character, it will fail.

Remove empty rows and move content from table to other row

I have table:
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<table class="table-bordered" width="100%">
<tr>
<th>Product</th>
<th>Service</th>
</tr>
<tr>
<td>Product 1</td>
<td>S11</td>
</tr>
<tr>
<td></td>
<td>S13</td>
</tr>
<tr>
<td></td>
<td>S14</td>
</tr>
<tr>
<td>Product 2</td>
<td>S11</td>
</tr>
<tr>
<td></td>
<td>S120</td>
</tr>
</table>
I need: where empty row with product (where product's name is empty) delete this row and move service to up product row and delete current service from up product. Example:
In this table we have product 1. I need remove S11 and paste: S13 and S14 in single row.
I need this table on result:
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<table class="table-bordered" width="100%">
<tr>
<th>Product</th>
<th>Service</th>
</tr>
<tr>
<td>Product 1</td>
<td>S13, S14</td>
</tr>
<tr>
<td>Product 2</td>
<td>S120</td>
</tr>
</table>
I think, that this we can do with javascript or jquery. I try write this code:
$('table tr').each(function () {
if (!$.trim($(this).text())) $(this).remove();
});
But this only remove empty rows..

let tr
$('table tr').each(function () {
if($(this).find('td:nth-child(1)').text().length){
tr = $(this)
tr.find('td:nth-child(2)').text('')
}else{
let td = $(tr).find('td:nth-child(2)')
td.text(td.text() + ' ' + $(this).find('td:nth-child(2)').text())
$(this).remove()
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css" integrity="sha384-GJzZqFGwb1QTTN6wy59ffF1BuGJpLSa9DkKMp0DgiMDm4iYMj70gZWKYbI706tWS" crossorigin="anonymous">
<table class="table-bordered" width="100%">
<tr>
<th>Product</th>
<th>Service</th>
</tr>
<tr>
<td>Product 1</td>
<td>S11</td>
</tr>
<tr>
<td></td>
<td>S13</td>
</tr>
<tr>
<td></td>
<td>S14</td>
</tr>
<tr>
<td>Product 2</td>
<td>S11</td>
</tr>
<tr>
<td></td>
<td>S120</td>
</tr>
</table>

for (var x= 0; x < $("table.table-bordered").children[0].children.length; x++) // loop through all table rows.
{
if($("table.table-bordered").children[0].children[x].children[1].outerHTML.indexOf(',') != -1) // if the second td of the table contains a comma
{
var arr = $("table.table-bordered").children[0].children[x].children[1].innerHTML.split(','); // split the array so you make as many rows as needed
for (var y = 1; y < arr.length; y++) { // loop trough the array
var row = document.createElement('tr'); // create a new row
var first = document.createElement('td');
row.append(first) // create a empty td and add it to the row
var second = document.createElement('td'); // create another td
second.append(arr[y]); // append the value (whats after the comma)
row.append(second); // add it to the row
$("table.table-bordered > tbody").append(row); // add the row to the table
}
};
}
With this i managed to add a row to the table but i didn't have time to add it in the right place but you could look into that yourself.
I hope this helps, but to be honest I think you would be better of changing it in the backend.

JQuery: search and filter a table by a single column

I want to search a table by the values in a single column.
The table looks like this:
<table class="table main-content">
<thead>
<td><b>Title</b></td>
<td><b>Name</b></td>
<td><b>State (D)</b></td>
<td><b>Party</b></td>
<td><b>Room</b></td>
<td><b>Phone #</b></td>
<td><b>Special Role(s)</b></td>
</thead>
<tbody id="congress">
<tr>
<td>Senator</td>
<td>Alexander, Lamar</td>
<td>TN</td>
<td class="republican">Rep.</td>
<td>455 Dirksen</td>
<td>(202) 224-4944</td>
<td></td>
</tr>
<tr>
<td>Senator</td>
<td>Barrasso, John</td>
<td>WY</td>
<td class="republican">Rep.</td>
<td>307 Dirksen</td>
<td>(202) 224-6441</td>
<td></td>
</tr>
...
I want to be able to search the table by a given column, say names (index 1) or state (index 2). I've tried jets.js but it only allows one instance per page while I require at least two. JQuery is preferred, JS is fine, and external libs are ok but not optimal.
Cheers!
Edit:
I've tried using the following:
var $rows = $('#congress tr');
$('#stateSearch').keyup(function() {
var val = $.trim($(this).val()).replace(/ +/g, ' ').toLowerCase();
$rows.show().filter(function() {
var text = $(this).text().replace(/\s+/g, ' ').toLowerCase();
return !~text.indexOf(val);
}).hide();
});
The above code searches all of the columns in the table. How can I adjust it to search only for a specific column? (By index.)
The goal is to hide all of the tr that don't match the query in the given column

Something like this
function isFound(name, state)
{
$("table tbody").find("tr").each (function(){
var trElem = $(this);
if (($(this).find("td:eq(1) a").text() == name) && ($(this).find("td:eq(2)").text() == state))
return trElem;
})
return false;
}
Usage:
if (tr = isFound ('Firstname Lastname', 'State'))
tr.remove();
or, if you have more than one elements, use a loop for removing
while (tr = isFound ('Firstname Lastname', 'State'))
tr.remove();

Here's an example that will hide all rows where the State column (index 3) is TN. You can adapt it as you need:
$('td:nth-child(3)').each (function(){
if( $(this).val() == 'TN' )
$(this).parent().hide();
});
Another easy solution would be to use Datatables, which have a built-in search feature and methods to search by column. It may be overkill for your project, but take a look anyway for the future.

DataTables Example
You could reinvent the wheel, but it's probably better to just use DataTables unless you have an expressed need to do otherwise:
var $table = $('table');
// Setup - add a text input to each footer cell
$table.find('tfoot th').filter(':eq(1),:eq(2)').css('visibility', 'visible').each(function() {
var title = $(this).text();
$(this).html('<input type="text" placeholder="Search ' + title + '" />');
});
// DataTable
var table = $table.DataTable({
lengthChange: false
});
// Apply the search
table.columns().every(function() {
var col = this;
$('input', this.footer()).on('keyup change', function() {
if (col.search() !== this.value)
col.search(this.value).draw();
});
});
table tfoot tr th {
visibility: hidden;
}
<link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/v/bs-3.3.7/jq-2.2.4/dt-1.10.13/r-2.1.1/datatables.min.css" />
<script type="text/javascript" src="https://cdn.datatables.net/v/bs-3.3.7/jq-2.2.4/dt-1.10.13/r-2.1.1/datatables.min.js"></script>
<table class="table table-striped main-content">
<thead>
<tr>
<th>Title</th>
<th>Name</th>
<th>State (D)</th>
<th>Party</th>
<th>Room</th>
<th>Phone #</th>
<th>Special Role(s)</th>
</tr>
</thead>
<tfoot>
<tr>
<th>Title</th>
<th>Name</th>
<th>State (D)</th>
<th>Party</th>
<th>Room</th>
<th>Phone #</th>
<th>Special Role(s)</th>
</tr>
</tfoot>
<tbody id="congress">
<tr>
<td>Senator</td>
<td>Alexander, Lamar</td>
<td>TN</td>
<td class="republican">Rep.</td>
<td>455 Dirksen</td>
<td>(202) 224-4944</td>
<td></td>
</tr>
<tr>
<td>Senator</td>
<td>Barrasso, John</td>
<td>WY</td>
<td class="republican">Rep.</td>
<td>307 Dirksen</td>
<td>(202) 224-6441</td>
<td></td>
</tr>
</tbody>
</table>

try this:
var text = $(this).find('td:eq(1),td:eq(2)').text().replace(/\s+/g, ' ').toLowerCase();

Sort a table on clicking the header of each column using jQuery without duplicating the entire table

Trying to sort the table by just duplicating the row and not the entire table. On click of the column header that column's data must be compared and sorted and the rows rearranged , but I don't know where i am going wrong.Here is my code.
<!DOCTYPE html>
<html lang="en">
<head>
<title>Table Sort</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"> </script>
<script type="text/javascript">
$(document).ready(function() {
$('th').click(function() {
var ColNo = parseInt($(this).index());
var rows= $('tbody').children('tr');
var TotRows = parseInt(rows.length);
for (var i = TotRows-1; i >= 0; i--) {
for (var j = TotRows-1; j > 0; j--) {
var jint = parseInt(j);
var frstval = parseInt(rows[jint].getElementsByTagName("td")[ColNo].innerHTML);
var scndval = parseInt(rows[jint - 1].getElementsByTagName("td")[ColNo].innerHTML);
if (frstval < scndval) {
var a = frstval < scndval;
alert(a);
var sourceRow = $('tr').eq(jint);
alert(sourceRow);
var targetRow = $('tr').eq(jint-1);
targetRow.after(sourceRow.clone());
sourceRow.replaceWith(targetRow);
}
}
}
});
});
</script>
</head>
<body>
<table>
<thead>
<tr>
<th>Employee Id</th>
<th>Name</th>
<th>Age</th>
</tr>
</thead>
<tbody>
<tr>
<td>11</td>
<td>AAA</td>
<td>28</td>
</tr>
<tr>
<td>22</td>
<td>BBB</td>
<td>29</td>
</tr>
<tr>
<td>33</td>
<td>CCC</td>
<td>21</td>
</tr>
<tr>
<td>44</td>
<td>DDD</td>
<td>24</td>
</tr>
</tbody>
</table>
</body>
</html>

Better if you use a dhtmlXgrid... It's easier to implement, and you can create a JSON object of the entire dataset that you want to fill in the table. Then, just parse the JSON object into the dhtmlXgrid. With dhtmlXgrid, sorting, column size, column drag and drop, row drag and drop, etc., all such activities can be made automatically.

Need to sort a table based on attribute value

I have a table with multiple values and table values are moved from one table to another. When it returns to initial table then I need to sort this table based on the alphabetical order.
I am using this code but it doesn't work for me:
var aa = $("#unSelectedTab").find('td');
var abc = '';
for (var i = 0; i < aa.length; i++) {
abc += aa[i].attr("id");
}

It's a lot of code but this should do it:
<!DOCTYPE html>
<html>
<head>
<script src="jquery-1.9.0.js"></script>
<meta content="text/html; charset=UTF-8" http-equiv="content-type">
<title>Example</title>
</head>
<body>
<table>
<tbody>
<tr><th>number</th><th>letter</th></tr>
<tr>
<td>3</td>
<td>a</td>
</tr>
<tr>
<td>2</td>
<td>c</td>
</tr>
<tr>
<td>2</td>
<td>c</td>
</tr>
<tr>
<td>2</td>
<td>b</td>
</tr>
<tr>
<td>3</td>
<td>b</td>
</tr>
<tr>
<td>1</td>
<td>c</td>
</tr>
</tbody>
</table>
<script type="text/javascript">
function helper_getText(el){
return (el.innerText)?el.innerText:el.textContent;
}
function sortTable(table,byCols){
var rows=table.getElementsByTagName("tr"),
rowArr=[],
i,rowValues=[],j,cells,
tbody=table.getElementsByTagName("tbody")[0];
for(i=0;i<rows.length;i++){
cells=rows[i].getElementsByTagName("td");
if(cells.length===0){
continue;
}else{
rowArr.push($.clone(rows[i]));
rows[i].parentElement.removeChild(rows[i]);
i--;
}
rowValues.push({vals:[],index:rowValues.length});
for(j=0;j<byCols.length;j++){
rowValues[rowValues.length-1].vals.push(
// here you can get the attribute instead
// if there are multiple attributes per column
// to sort on then this gets more difficult
// $.trim(cells[byCols[j]].document.body.getAttribute("data-something"))
$.trim(helper_getText(cells[byCols[j]]))
);
}
}
//sort by multiple columns should be seporate function
rowValues.sort(function(a,b){
var i = 0;
while(a.vals[i]==b.vals[i]&&i<a.vals.length){
i++;
}
if(i===a.vals.length){return 0};
return (a.vals[i]>b.vals[i])?1:-1;
});
//add the rows in the right order
for(i=0;i<rowValues.length;i++){
tbody.appendChild(rowArr[rowValues[i].index]);
}
}
//[1,0] means sort by colum 2 first than by colum 1
sortTable(document.getElementsByTagName("table")[0],[1,0]);
</script>
</body>
</html>

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