CSS adding automating number for each row - javascript

I have a table that i want to add automatic number for each row. I want the to appear on the second column.
This must be a straight forward thing to do, but just couldn't figure it out.i have follow the direction from Automatic Serial Number Row in HTML Table
but this only appear on the first column. i want that to appear on the second td:


Then use :nth-child psuedo selector, or you can use javascript to iterate over the rows and add the number to one of the cells. Both options are below:
document.querySelectorAll('table').forEach(function(table) {
var index = 1;
table.querySelectorAll('tr').forEach(function(row) {
row.querySelectorAll('td').forEach(function(column, position) {
if (position === 1) {
column.innerHTML = '' + index;
index++;
}
});
});
});
table{
counter-reset: serial-number; /* Set the serial number counter to 0 */
}
tr td:nth-child(3):before {
counter-increment: serial-number; /* Increment the serial number counter */
content: counter(serial-number); /* Display the counter */
}
<table>
<tr>
<td>A</td>
<td></td>
<td></td>
</tr>
<tr>
<td>B</td>
<td></td>
<td></td>
</tr>
<tr>
<td>C</td>
<td></td>
<td></td>
</tr>
<tr>
<td>D</td>
<td></td>
<td></td>
</tr>
<tr>
<td>E</td>
<td></td>
<td></td>
</tr>
<tr>
<td>F</td>
<td></td>
<td></td>
</tr>
<tr>
<td>G</td>
<td></td>
<td></td>
</tr>
</table>

Related

Copy, Drag and drop table cells only within a table column - JS

I have a table and I can only drag/drop cells across different columns. However, I want the functionality to copy the cell while dragging and dropping it in the same column. If a column already has a value, we need to replace that value with the pasted value. Please advice.
This is my code:
$(document).ready(function() {
$('.event-1').on("dragstart", function(event) {
var dt = event.originalEvent.dataTransfer;
dt.setData('Text', $(this).attr('id'));
});
$('table td').on("dragenter dragover drop", function(event) {
event.preventDefault();
if (event.type === 'drop') {
var data = event.originalEvent.dataTransfer.getData('Text', $(this).attr('col-1'));
de = $('#' + data).detach();
de.appendTo($(this));
};
});
$('.event-2').on("dragstart", function(event) {
var dt = event.originalEvent.dataTransfer;
dt.setData('Text', $(this).attr('id'));
});
$('table td').on("dragenter dragover drop", function(event) {
event.preventDefault();
if (event.type === 'drop') {
var data = event.originalEvent.dataTransfer.getData('Text', $(this).attr('col-2'));
de = $('#' + data).detach();
de.appendTo($(this));
};
});
})
table th,
table td {
height: 30px;
width: 200px;
}
table span {
display: block;
background-color: #09C;
height: 100%;
width: 100%;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id="#our_table" border="1">
<tr>
<th>head1</th>
<th>head1</th>
<th>head1</th>
</tr>
<tr>
<td><span class="event-1" id="col-1" draggable="true">aaa</span></td>
<td></td>
<td></td>
</tr>
<tr>
<td>sample</td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td><span class="event-2" id="col-2" draggable="true">bbb</span></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</table>
Any help is appreciated.

Whenever any element is drag you can get index() of tdand tr tag and save them in setData() method . Now , when you are going to drop that element check if the td(where you need to drop) and td(from where span is taken) are same if they match simply get the data which is set in setData method using that data we can detach() that element and append to new td .
Demo Code :
$(document).on("dragstart", 'td span', function(event) {
var dt = event.originalEvent.dataTransfer;
dt.setData('Text', $(this).closest("td").index() + " , " + $(this).closest("tr").index()); //save index of td & tr
});
$('table td').on("dragenter dragover drop", function(event) {
event.preventDefault();
var index_ = $(this).index() //get index of td where we are dropping..
if (event.type === 'drop') {
var data = event.originalEvent.dataTransfer.getData('Text');
var new_data = data.split(",") //get data which is set
//check if the index of td from where span is taken and td where span is to drop is same..
if (new_data[0] == index_) {
$(this).text("") //clear if any text before...
de = $(`tr:eq(${new_data[1]}) td:eq(${new_data[0]}) span`).clone() //detach() //get that element
$(de[0]).appendTo($(this)); //append
}
};
});
table th,
table td {
height: 30px;
width: 200px;
}
table span {
display: block;
background-color: #09C;
height: 100%;
width: 100%;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<table id="#our_table" border="1">
<tr>
<th>head1</th>
<th>head1</th>
<th>head1</th>
</tr>
<tr>
<td><span draggable="true">aaa</span></td>
<td></td>
<td></td>
</tr>
<tr>
<td>sample</td>
<td></td>
<td><span draggable="true">ccc</span></td>
</tr>
<tr>
<td></td>
<td><span draggable="true">bbb</span></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</table>

Delete row in html if all cells blank

I'm generating a table based on some external data. Every row does not have data in the columns I'm returning. I'd like to delete the row that have all cells empty. I have found some code to delete the row if one cell is empty, but one empty cell is allowed. I'd like to delete the first and third rows.
I've tried this, but it deletes all rows:
<table border="1">
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>123</td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>456</td>
<td></td>
</tr>
$("td").each(function() {
if (this.innerText === '') {
this.closest('tr').remove();
}
});

Simply modify your script to iterate over tr elements instead of td.
If the text content of a tr row is blank, that means all of its cells are blank, as well. Here's a working demo:
$("tr").each(function() {
if (!$(this).text().trim()) {
this.remove();
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table border="1">
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>123</td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td>456</td>
<td></td>
</tr>
</table>

You can use each of the tr elements like this. Hope to help, my friend :))
$('tr').filter(
function(){
return $(this).find('td').length == $(this).find('td:empty').length;
}).hide();
http://jsfiddle.net/1g7hqkvb/

Remove specific index child from parent DOM with removeChild() [Vanilla Javascript]

i have a table with this basic structure:
<thead>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</thead>
<body>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
and i want to remove the second child from every "tr" tag, so i would like to do something like this:
const rows = document.getElementsByTagName('td')
for (let i = 0; i < rows.length; i++) {
rows[i].removeChild(target the second child here)
}
i'm looking for a solution with pure vanilla javascript (no jquery)

You might select the tds you want to remove via a single selector string, it's probably more elegant:
document.querySelectorAll('td:nth-child(2)')
.forEach(td => td.remove());
<table>
<thead>
<tr>
<td>td1</td>
<td>td2</td>
<td>td3</td>
</tr>
</thead>
<tbody>
<tr>
<td>td1</td>
<td>td2</td>
<td>td3</td>
</tr>
<tr>
<td>td1</td>
<td>td2</td>
<td>td3</td>
</tr>
<tr>
<td>td1</td>
<td>td2</td>
<td>td3</td>
</tr>
</tbody>
</table>
If the HTML is valid, the tds will necessarily be children of trs regardless, so you don't need to specify that the td's parent is a tr.
If you want to target a specific table on the page, rather than every td in every table, just put the table identifier in front of the selector string. Eg. if the target table's ID is 'table3', then use the selector string '#table3 td:nth-child(2)' to indicate td which are the second child in their parent, which are descendants of the element with ID table3.

In VanillaJS you can use document.querySelectorAll() and walk over the 2nd td using forEach()
[].forEach.call(document.querySelectorAll('#myTable td:nth-child(2)'), function(td) {
td.remove();
});
//$("#myTable td:nth-child(2)").remove()
[].forEach.call(document.querySelectorAll('#myTable td:nth-child(2)'), function(td) {
td.remove();
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="myTable">
<thead>
<tr>
<td>TD-1</td>
<td>TD-2</td>
<td>TD-3</td>
</tr>
</thead>
<tbody>
<tr>
<td>TD-1</td>
<td>TD-2</td>
<td>TD-3</td>
</tr>
<tr>
<td>TD-1</td>
<td>TD-2</td>
<td>TD-3</td>
</tr>
<tr>
<td>TD-1</td>
<td>TD-2</td>
<td>TD-3</td>
</tr>
</tbody>
</table>

You can use a query selector with nth-child.
const rows = document.getElementsByTagName('tr')
for (let i = 0; i < rows.length; i++) {
rows[i].removeChild(rows[i].querySelector('td:nth-child(2)'));
}
<table>
<thead>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
</tbody>
</table>
<script>
var rows = document.getElementsByTagName('tr');
for (let i = 0; i < rows.length; i++) {
var row = rows[i];
var td = row.querySelector('td:nth-child(2)');
row.removeChild(td);
}
</script>

In a table, add property to a cell in a column which include a cell containing a specific text

I have a table as shown:
<table border="1" cellpadding="1" cellspacing="1" class="td1166">
<tbody>
<tr>
<td>Number</td>
<td>A</td>
<td>B</td> //Assume that this cell indicate the column I need to select
<td>C</td>
<td>D</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td> //So the last cell in the 'A' column is the one I want to add property, and A is known.
<td></td>
<td></td>
</tr>
</tbody>
</table>
All the need I have presented in the code.
I was trying using jQuery but I have no idea how to select as such. Hope your kind help!

You can try something like this, note: this will only work for the first and last rows, you will need different selectors if you have different rows
$('tr:first td').each(function(i,v){
if($(this).text() == "B") {
var index = $(v).index();//get the index of the colomn
$('tr:last td').eq(index).css('color','red');//select the element
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table border="1" cellpadding="1" cellspacing="1" class="td1166">
<tbody>
<tr>
<td>Number</td>
<td>A</td>
<td>B</td> <!--//Assume that this cell indicate the column I need to select-->
<td>C</td>
<td>D</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td>here</td><!-- //So the last cell in the 'A' column is the one I want to add property, and A is known.-->
<td></td>
<td></td>
</tr>
</tbody>

Jquery nextUntil and row cells

There is a html table with the following structure:
<table>
<tr class="header">
<td><img id="test_click" src=""></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
<tr class="header">
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
</tr>
How can i hide all table rows between two using jquery?
This code does not work as i suspected :(
$("#test_click").click(function(){
$(this).parent().parent().nextUntil('tr.header').find('tr').hide();
});

nextUntill already selects your trs. No need to .find anything:
$("#test_click").click(function() {
$(this).parent().parent().nextUntil('tr.header').hide();
});
http://jsfiddle.net/nMBrw/

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