How to remove class at serial cells in html tables - javascript

Some event were registered in calendar like html tables.
I would like to unregister these event by clicking them.
To realize this,I would like to removeclass continuous cells. like
When we click3or4,then 3,4 cell's class will be removed.
When we click 13or14or15,then 13,14,15 cell's class will be removed.
When we click 9, then only 9 cell's class will be removed.
Is it possible?
and are there any way to realize it?
Thanks
$(function() {
$("td").click(function() {
$(this).removeClass();
});
});
td {
transition-duration: 0.5s;
border: solid black 1px;
padding: 5px;
}
table {
border-collapse: collapse;
}
.aqua{
background-color:aqua;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>


You can first use .closest() to target the parent tr element then use .find() to target all the element with the class aqua to remove them:
$(function() {
$("td").click(function() {
$(this).closest('tr').find('.aqua').removeClass('aqua');
});
});
td {
transition-duration: 0.5s;
border: solid black 1px;
padding: 5px;
}
table {
border-collapse: collapse;
}
.aqua{
background-color:aqua;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>


If you just change your script like below. Your code will work perfectly according to your requirement.
$(function() {
$("tr").click(function() {
$(this).children().removeClass();
});
});
or else you can change like below as well. It also work perfectly.
$(function() {
$("td").click(function() {
$(this).closest('tr').find('.aqua').removeClass('aqua');
});
});
Best Answer is using second method.


You can simply target only the cells having that aqua class to achieve this, instead of targeting every cell. Then using .closest('tr') find the closest parent tr for the clicked cell and after that using .find('td.aqua') find all the cells having the class aqua and then finally remove the class from each of them.
$(function() {
$("td.aqua").click(function() {
$(this).closest('tr').find('td.aqua').removeClass('aqua');
});
});
td{transition-duration:.5s;border:solid #000 1px;padding:10px;text-align:center}
table{border-collapse:collapse}
.aqua{background-color:#0ff}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>


if you want to remove aqua class when clicking each row then use this
$(function() {
$("tr").click(function() {
$(this).children().removeClass('aqua');
});
});
OR when clicking on the cells themselves use this
$(function() {
$("tr>.aqua").click(function() {
$(this).parent().children().removeClass('aqua');
});
});
$(function() {
$("tr>.aqua").click(function() {
$(this).parent().children().removeClass('aqua');
});
});
td {
transition-duration: 0.5s;
border: solid black 1px;
padding: 5px;
}
table {
border-collapse: collapse;
}
.aqua {
background-color: aqua;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td class='aqua'>3</td>
<td class='aqua'>4</td>
<td>5</td>
</tr>
<tr>
<td>6</td>
<td>7</td>
<td>8</td>
<td class='aqua'>9</td>
<td>10</td>
</tr>
<tr>
<td>11</td>
<td>12</td>
<td class='aqua'>13</td>
<td class='aqua'>14</td>
<td class='aqua'>15</td>
</tr>
</table>

Related

How to give an empty td a class?

I am displaying a table. Some cells of this table are filled with content. But there are some cells that are empty. What i want is that all empty cells have a different background color. How can i do that?
How can i check if a td is empty?

You can use :empty selector:
Demo:
//You can loop and remove the space charcater from cells
document.querySelectorAll('table tr > td').forEach(c => c.textContent = c.textContent.trim());
table, th, td {
border: 1px solid black;
}
table tr > td:empty {
background-color: yellow;
}
<table>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td>January</td>
<td>$100</td>
</tr>
<tr>
<td>February</td>
<td></td>
</tr>
<tr>
<td>March</td>
<td>$90</td>
</tr>
<tr>
<td>May</td>
<td> </td>
</tr>
</table>

You can use js/jquery to check if a cell is empty or not. Based on that you can add a class and give a background-color to the same.
Or if you want a css only approach, you can use :empty selector. But the problem with :empty is that it will not consider a td an empty one if there is just a few space in it. Check the below snippet.
$(document).ready(function () {
$("table td").each(function (index, eachCell) {
if ($(eachCell).html().trim().length === 0) {
$(eachCell).addClass("empty-cell");
}
});
});
.empty-cell {
background-color: red;
}
td {
border: 1px solid #ddd;
padding: 5px;
}
td:empty {
background-color: yellow;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>1</td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td> </td>
</tr>
</tbody>
</table>

How to hide element correctly in html tables

I would like to behind row2by default and by clicking tables,it will show itself.
When I try my work like below,row2 is behind. but the shape of tables distorted.
I would like to align tables and behind row2 by deafault.
How can I fix it ?
Why this table distorted?
Thanks
$(function() {
$("table").click(function() {
$("table tr:eq(1)").toggleClass('show');
});
});
td {
padding:5px;
border:solid black 1px;}
table{
border-collapse:collapse;
border:solid black 1px;
cursor:pointer}
tr:nth-child(2):not([class]) {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<th rowspan="2">header</th>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<th rowspan="2">header</th>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>

If you want to toggle the row, I suggest you have a concept of "hide", rather than "show".
Also, get rid of the second row header. Not sure why you need it, if you are spanning 2 rows.
$(() => {
$('table').click(function(e) {
$(this).find('tr:eq(1)').toggleClass('hide');
});
});
table, th, td {
border: solid black 1px;
}
table {
border-collapse: collapse;
}
th, td {
padding: 0.25em;
}
th {
cursor: pointer
}
.hide {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<thead></thead>
<tbody>
<tr>
<th rowspan="2">Header</th>
<td>01</td>
<td>02</td>
<td>03</td>
<td>04</td>
<td>05</td>
</tr>
<tr class="hide">
<td>06</td>
<td>07</td>
<td>08</td>
<td>09</td>
<td>10</td>
</tr>
</tbody>
</table>

Jquery/JS Select last td in each line which don't have a specific class

I have the following HTML table:
<table>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td class="treegrid-hide-column">3</td>
</tr>
<tr>
<td>4</td>
<td>5</td>
<td class="treegrid-hide-column">6</td>
</tr>
<tr>
<td>7</td>
<td>8</td>
<td class="treegrid-hide-column">9</td>
</tr>
</tbody>
</table>
I would like to get all last elements which don't have the "treegrid-hide-column" class in each line.
How can in do that in CSS or JS ?
I tried doing that but it doesn't works well.
function addRightBorderOnTreetable() {
var arr = $('.treegridCustom tbody tr td:last-child');
for (var i=0; i<arr.length; i++) {
var currentEl = arr[i];
if ( !$(currentEl).hasClass("treegrid-hide-column") ) {
$(currentEl).css('border-right', '1px solid #bfbfbf');
}
}
}

CSS doesn't have this feature, but you can do it with jQuery:
$("tr").each(function() {
$(this).find("td:not(.treegrid-hide-column):last").each(function() {
$(this).css('border-right', '1px solid #bfbfbf');
});
});
$("tr").each(function() {
$(this).find("td:not(.treegrid-hide-column):last").each(function() {
$(this).css('border-right', '1px solid #bfbfbf');
});
});
<table>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td class="treegrid-hide-column">3</td>
</tr>
<tr>
<td>4</td>
<td>5</td>
<td class="treegrid-hide-column">6</td>
</tr>
<tr>
<td>7</td>
<td>8</td>
<td class="treegrid-hide-column">9</td>
</tr>
</tbody>
</table>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
We have to go row-by-row because there's no CSS "last element not matching this class", and jQuery's :last applies to the whole set, not the set at each level of thes elector.

If you added a class to your preferred td ?
<table>
<tbody>
<tr>
<td>1</td>
<td class="right-border">2</td>
<td class="treegrid-hide-column">3</td>
</tr>
<tr>
<td>4</td>
<td class="right-border">5</td>
<td class="treegrid-hide-column">6</td>
</tr>
<tr>
<td>7</td>
<td class="right-border">8</td>
<td class="treegrid-hide-column">9</td>
</tr>
</tbody>
And then change the css
.right-border {
border-right: 1px solid #bfbfbf;
}
Or with a js function
function addRightBorderOnTreetable() {
var el = $('.treegridCustom tbody tr .right-border');
el.css('border-right', '1px solid #bfbfbf');
}

you might need to run for loop like this. I think this is what you want to achieve.
$(document).ready(function() {
addRightBorderOnTreetable();
});
function addRightBorderOnTreetable() {
$.each($('tr'),function(){
var arr2 = $(this).find('td');
var j = arr2.length;
for(j=arr2.length; j>-1;j--){
var currentEl = arr2[j - 1];
if (!$(currentEl).hasClass("treegrid-hide-column") ) {
$(currentEl).css('border-right', '1px solid #bfbfbf');
return;
}
}
});
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tbody>
<tr>
<td>1</td>
<td>2</td>
<td class="treegrid-hide-column">3</td>
</tr>
<tr>
<td>4</td>
<td>5</td>
<td class="treegrid-hide-column">6</td>
</tr>
<tr>
<td>7</td>
<td>8</td>
<td class="treegrid-hide-column">9</td>
</tr>
</tbody>
</table>

So simple use nth-last-child() here
<script>
$(document).ready(function(){
$( 'table tbody tr td:nth-last-child(2)').css('border-right', '1px solid #bfbfbf');
});
</script>
Jsfiddle

table tr td:not(.treegrid-hide-column):last-child {
border-right: 1px solid #bfbfbf;
}

How can I change the background color of a td when a link in the td is clicked?

I have tried searching, but I am stuck.
Basically I am making a jeopardy game board; which I created using a table. I would like to change the background-color of the td after it has been clicked on. The challenge I am facing is that (1) I am using a link to direct to the question/answer (yes, I know this could be done other ways, but I need to learn more to advance and I am working on that); (2) After searching for answers, I can't seem to get it to work with the code I have.
Here is my [JSFiddle]https://jsfiddle.net/hLyauL5a/)
Html:
<table>
<thead>
<tr>
<th>Stuff</th>
<th>Stuff </th>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
</tr>
</thead>
<tbody>
<tr>
<td>100</td>
<td>100</td>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
<tr>
<td>200</td>
<td>200</td>
<td>200</td>
<td>200</td>
<td>200</td>
</tr>
<tr>
<td>300</td>
<td>300</td>
<td>300</td>
<td>300</td>
<td>300</td>
</tr>
<tr>
<td>400</td>
<td>400</td>
<td>400</td>
<td>400</td>
<td>400</td>
</tr>
<tr>
<td>500</td>
<td>500</td>
<td>500</td>
<td>500</td>
<td>500</td>
</tr>
</tbody>
</table>
CSS:
jQuery code:
$("table tr td").click(function() {
$(this).css("background", "#626975");
});
I would appreciate any help!

I see two problems. One, you have not included jquery or your javascript file in your html. Your jsfiddle does not have jquery loaded.
Two, assuming the above was just a problem getting your question across on Stack Overflow, you haven't waited for the document to load before attaching event listeners. The selector tries to select something that isn't there yet, and nothing is attached. What you need is:
$(document).on('ready', function(){
$("table tr td").click(function(e) {
$(this).css("background", "#626975");
});
});
Working example:
$(()=> {
$("table tr td").click(function() {
$(this).css("background", "#626975");
});
});
body {
cursor: pointer;
}
/*gameboard*/
table {
width: 100%;
border-collapse: collapse;
}
tr {
background: #1f293a;
color: #47ba04;
}
th {
background: #1f293a;
color: white;
font-weight: bold;
min-width: 200px;
}
td {
color: #47ba04;
background: #1f293a;
min-width: 100px;
height: 130px;
}
td,
th {
padding: 6px;
border: 1px solid #ccc;
text-align: center;
}
a {
color: #47ba04;
text-decoration: none;
}
/* For the question pages*/
#question,
#answers {
width: 100%;
height: 800px;
border: 1px solid black;
background-color: #1f293a;
color: white;
font-weight: bold;
}
div.question h2,
div.answers h2 {
margin: 0;
position: absolute;
top: 40%;
left: 50%;
margin-right: -50%;
transform: translate(-50%, -50%);
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<thead>
<tr>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
</tr>
</thead>
<tbody>
<tr>
<td>100
</td>
<td>100
</td>
<td>100
</td>
<td>100
</td>
<td>100
</td>
</tr>
<tr>
<td>200
</td>
<td>200
</td>
<td>200
</td>
<td>200
</td>
<td>200
</td>
</tr>
<tr>
<td>300
</td>
<td>300
</td>
<td>300
</td>
<td>300
</td>
<td>300
</td>
</tr>
<tr>
<td>400
</td>
<td>400
</td>
<td>400
</td>
<td>400
</td>
<td>400
</td>
</tr>
<tr>
<td>500
</td>
<td>500
</td>
<td>500
</td>
<td>500
</td>
<td>500
</td>
</tr>
</tbody>
</table>

You could launch the links in a new window by adding target="_blank" attribute to your anchor tags:
<td>100</td>

$('a').click(function(e){
e.preventDefault();
$(this).parent().css('background-color','blue');
});
So,using JQuery, if you click on an tag, don't jump on whatever link it is, you prevent the default event, then you get its parent which is the element and you add the css style as shown. Here is the html that I used as an example:
<table>
<tr>
<th>Month</th>
<th>Savings</th>
</tr>
<tr>
<td >Table</td>
<td bgcolor="#00FF00">$100</td>
</tr>

Generally, a hyperlinks like <a herf="" onclick="">contain two events: onclick and herf. The order of execution --- 'onclick' in front of 'herf'. so making onclick method return 'false' if you want to page can't jump on whatever link it is when you click hyperlink. Code is as follows.
$(function(){
$("a").on("click",function(){
$(this).css("background", "#626975");
return false;
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<thead>
<tr>
<th>Stuff</th>
<th>Stuff</th>
<th>Stuff</th>
</tr>
</thead>
<tbody>
<tr>
<td>100</td>
<td>100</td>
<td>100</td>
</tr>
</tbody>
</table>

Jquery conditional selector for TD

I want to be able to add a class to a TR element, dependent on the value of the first TD element.
For example:
If I have the following array of data:
[1,2,3,4]
[5,6,7,8]
Where each array represents a tr, with each element being a td, I would like to highlight the TR where the first TD equals 5 for instance.
How would i go about doing this?
Thanks,

Below example can help!
$(function() {
var tr = $('tr').find('td:first-child');
tr.each(function() {
if ($(this).text() == 5)
$(this).parent('tr').addClass('highlight');
});
});
tr.highlight {
background-color: yellow;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
</tr>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
<td>7</td>
<td>8</td>
</tr>
</table>

I managed to solve this by using the fnRowCallback function
'fnRowCallback': function(nRow, aData, iDisplayIndex) {
$(nRow).css('cursor', 'pointer');
$(nRow).prop('title', 'Select Company');
if (aData.CompId === "COMP01") {
$(nRow).find('td').addClass('selectedCompany');
}
return nRow;
},

You can use first-child and :contains with Jquery
$('td:first-child:contains("5")').parent('tr').addClass('selected')
tr.selected {
background: yellow;
}
tr.selected td:first-child {
font-size: 1.5em;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
<td>7</td>
</tr>
<tr>
<td>1</td>
<td>5</td>
<td>7</td>
</tr>
</table>
Edit Note:: This will select all first td with 5 on the string

Assume the content of the desired row td is "two", either of these would work:
$(document).ready(function() {
var findMe = "two";
$('#mytable').find('tr').filter(function(index) {
var isTwo = $(this).find('td').eq(0).text() === findMe;
return isTwo;
}).addClass('highlight');
$('#mytable').find('tr').find('td:first').filter(':contains("' + findMe + '")').parent('tr').addClass('highlight');
});

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