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Click on table cells and handle class changes per cell

I have a table looking like this:
<table class="ui celled table unstackable" id="tblHits">
<thead>
<tr>
<th>40</th>
<th>40</th>
<th>40</th>
<th>25</th>
<th>15</th>
</tr>
</thead>
<tbody>
<tr>
<td class="addNone" id="t01">01</td>
<td class="addNone" id="t02">02</td>
<td class="addNone" id="t03">03</td>
<td class="addNone" id="t04">04</td>
<td class="addNone" id="t05">05</td>
</tr>
</tbody>
</table>
What I want to do is to click TD with ID=t01 to change that class from one to another. The classes are defined to only change background colors. I have added some code to actually be able to select one TD already, but for some reason, I'm not able to click TD with id=t03 after that. Nothing happens. Any ideas on how I can do that?
My script is this:
$("#tblHits:has(td)").click(function(e) {
var clickedCell= $(e.target).closest("td");
if ( $('#t'+ clickedCell.text() + '').hasClass( "addNone" )) {
$("#tblHits td").removeClass("addNone");
$('#t'+ clickedCell.text() + '').addClass("addHit");
alert('Clicked table cell value is: <b> ' + clickedCell.text());
}
else if ( $('#t'+ clickedCell.text() + '').hasClass( "addHit" )) {
$("#tblHits td").removeClass("addHit");
$('#t'+ clickedCell.text() + '').addClass("addMiss");
alert('Clicked table cell value is: <b> ' + clickedCell.text());
}
else if ( $('#t'+ clickedCell.text() + '').hasClass( "addMiss" )) {
$("#tblHits td").removeClass("addMiss");
$('#t'+ clickedCell.text() + '').addClass("addNone");
alert('Clicked table cell value is: <b> ' + clickedCell.text());
});
Thank you in advance for any feedback concerning this issue!

Try to use "event delegation" to listen to clicks on a higher element (you did this, listening to clicks on the table).
However, fetching the clicked cell doesn't seem to work as planned.
You could just check if the clicked element is the td you want, and work from there. This also gives a small performance boost, since you can exit the script if something is clicked that you are not interested about.
$('#tblHits').on('click', function (evt) {
var $td = $(evt.target);
if (!$td.is('td')) return;
if ($td.hasClass('addNone')) {
$td.removeClass('addNone').addClass('addHit');
} else
if ($td.hasClass('addHit')) {
$td.removeClass('addHit').addClass('addMiss');
} else
if ($td.hasClass('addMiss')) {
$td.removeClass('addMiss').addClass('addNone');
}
});
See this fiddle: https://jsfiddle.net/bkry0txr/4/
btw, I'd advice adding another selector to the td, eg. another classname.
For example:
<tr>
<td class="hitbox addNone"></td>
<td class="hitbox addHit"></td>
<!-- etc -->
</tr>
And then the JS:
$('#tblHits').on('click', function (evt) {
var $td = $(evt.target);
if (!$td.is('.hitbox')) return;
// etc..
});
This way you can have other td elements, or even change to other elements if you'd like. The JS doesn't need to change, as long as the element you want to check have the classname hitbox.

You can bind a click event on all your td, and for each one, you can change your css as you like!
There is no need to use this $('#t'+ clickedCell.text()).
$( "td" ).each(function(index) {
$(this).on("click", function(){
if ($(this).hasClass('addNone')) {
$(this).removeClass('addNone').addClass('addHit');
} else if ($(this).hasClass('addHit')) {
$(this).removeClass('addHit').addClass('addMiss');
} else if ($(this).hasClass('addMiss')) {
$(this).removeClass('addMiss').addClass('addNone');
}
});
});

Onclick in td - access next cells

I'm using a table to display items, an onclick event on cell[0] should output (alert) the data from cell[1] and cell[2].
I'm not sure with which approach I could access them.
Here is my code so far
http://jsfiddle.net/5uua7eyx/3/
Perhaps there is a way to use my variable input
HTML
<table id="items">
<tr>
<td onclick="ClickPic(this)">Picture0</td>
<td>Name0</td>
<td>Price0</td>
</tr>
<tr>
<td onclick="ClickPic(this)">Picture1</td>
<td>Name1</td>
<td>Price1</td>
</tr>
</table>
JS
function ClickPic(e) {
"use strict";
var input = e.target;
alert("Clicked!");
}
Thank you

You're passing this, which represents the element clicked, not the event object.
All you need to do is use the parameter to get the sibling .cells from the .parentNode, then use the elem.cellIndex to figure out the next indices:
function ClickPic(elem) {
"use strict";
var cells = elem.parentNode.cells;
var currIdx = elem.cellIndex;
alert(cells[currIdx + 1].textContent + " " + cells[currIdx + 2].textContent);
}
<table id="items">
<tr>
<td onclick="ClickPic(this)">Picture0</td>
<td>Name0</td>
<td>Price0</td>
</tr>
<tr>
<td onclick="ClickPic(this)">Picture1</td>
<td>Name1</td>
<td>Price1</td>
</tr>
</table>
x
If you know the index numbers will always be 1 and 2, then you can shorten it.
alert(cells[1].textContent + " " + cells[2].textContent);

you can change your js function to something like this
<script type="text/javascript">
function ClickPic(e) {
var s = '';
$(e).siblings().each(function() {
s = s + ',' + $(this).text()
});
alert(s);
}

Multiply td values

I have a html table that looks like this...
<table>
<tr>
<th>Date</th>
<th>Pair</th>
<th>Game</th>
<th>Chance</th>
</tr>
<tr>
<td>2014-2-12</td>
<td>Milan-Udinese</td>
<td>1</td>
<td>1.6</td>
</tr>
<tr>
<td>2014-2-13</td>
<td>Juventus-Inter</td>
<td>x</td>
<td>2.5</td>
</tr>
<tr>
<td>2014-2-13</td>
<td>Arsenal-Liverpul</td>
<td>2</td>
<td>2.5</td>
</tr>
</table>
<p>Total number is:MULTIPLICATION OF ALL CHANCE COLUMN TD</p>
all my rows are added dynamically,how do i multiply all chance column td values(numbers)?Do i have to put certain class on chance tds and then get all tds with that class,and loop through and multiply every value then?I'm kinda a newbie so any help would be appreciated.

You can either do something like this:
var tots = 1;
$('tr td:nth-child(4)').each(function(){
tots *= $(this).text();
});
the nth-child(4) is selecting the fourth td in each row, if you want another, just change that number.
or you can give the cells you want to multiple classes, like you said.
example here

If you're using jQuery, the :last-child selector could be helpful.
<p>Total number is: <span id="result"></span></p>
Javascript:
res = 1;
$("tr td:last-child").each(function() {
res *= parseFloat($(this).html());
});
$("#result").html(res);
Have a look to this JSFiddle.

You don't need jQuery to do this. querySelectorAll supports nth-child selector as well.
var derp = document.querySelectorAll("tr td:nth-child(4)");
var total = 1;
var results = [].reduce.call(derp, function (prev, next) {
return prev * ( + next.textContent );
});
Grab the element, and use native Array prototype methods ([]) to iterate the NodeList and return the parsed value of the element, then return the multiplied total.
Here is a fiddle for you.

$(function () {
var chanceTotals = 1;
$("tr td:nth-child(4)").each(function () {
chanceTotals *= parseFloat($(this).html());
});
$("#totals").html("Total number is: " + chanceTotals);
});
Using jQuery, this executes an anonymous function when the document is ready that will do the calculation for you.
You will need to add the id totals to your p element in order for this to work.
Look at this JSFiddle

You really do not need jquery at all to do this. Interacting with the DOM directly may make you write more (browser support), but it can be more efficient than using jQuery (Unnecessary overhead).
As you can see, I restructured your <table>. I could have just grabbed the <tbody> and looped over its children and skipped the whole if <TD> ? check.
DEMO
$(document).ready(function () {
var table = $('#myTable').get(0);
var multiplier = 1;
var col = 3;
for (var row = 0; row < 4; row++) {
var cell = table.rows[row].cells[col];
if (cell.nodeName == 'TD') {
var text = cell.innerText || cell.textContent;
multiplier *= parseFloat(text);
}
}
$('#multiplier').text(multiplier);
});
<table id="myTable">
<thead>
<tr>
<th>Date</th>
<th>Pair</th>
<th>Game</th>
<th>Chance</th>
</tr>
</thead>
<tbody>
<tr>
<td>2014-2-12</td>
<td>Milan-Udinese</td>
<td>1</td>
<td>1.6</td>
</tr>
<tr>
<td>2014-2-13</td>
<td>Juventus-Inter</td>
<td>x</td>
<td>2.5</td>
</tr>
<tr>
<td>2014-2-13</td>
<td>Arsenal-Liverpul</td>
<td>2</td>
<td>2.5</td>
</tr>
</tbody>
</table>
<p>Total number is:
<span id="multiplier">MULTIPLICATION OF ALL CHANCE COLUMN TD</span>
</p>

jQuery - selector inside another selector - passed in variable loses its value and becomes an indexer?

I'm somewhat new to jQuery and am just wondering how I go about passing in a string value rather than what appears to be a reference to a jQuery item from a selector? I'm having a hard time explaining so here's a sample demo. Don't even know what to title this so please have at editing the title if you can think of a better one.
At the line where I do $("td").filter(function(str){ the str that is passed in becomes an index position of which TD I'm in. So while debugging the first time in it's a 0 the next time a 1 and so on. I tried google but I'm not even sure what to search for, any documentation/code help would be much appreciated
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("select[name='showTeam']").change(function () {
$("select[name='showTeam'] option:selected").each(function () {
var str = $(this).val().toLowerCase();
//str = what it was set to up there
//alert(str);
$("td").filter(function(str) {
//str = becomes a number = to position of TD.. ie for 5th TD match STR = 4 (starts at index 0)
return $(this).text().toLowerCase().indexOf(str) != -1;
}).css('background','red');
});
})
});
</script>
Show Team: <select id="showTeam" name="showTeam">
<option>All</option>
<option>Chelsea</option>
</select>
<div id="games">
<table border="1">
<tbody>
<tr>
<th>ID</th>
<th>Game date</th>
<th>Field</th>
<th>Home team</th>
<th>Home team score</th>
<th>Away team</th>
<th>Away team score</th>
<th>Game type</th>
</tr>
<tr class="odd_line" id="game_460">
<td>459</td>
<td>03 Nov 19:00</td>
<td>Field 2</td>
<td>Madrid </td>
<td>3</td>
<td>Bayern Munich </td>
<td>1</td>
<td>Season</td>
</tr>
<tr class="odd_line" id="game_461">
<td>460</td>
<td>03 Nov 19:00</td>
<td>Field 3</td>
<td>chelsea</td>
<td>5</td>
<td>arsenal</td>
<td>4</td>
<td>Season</td>
</tr>
</div>

$(document).ready(function(){
$("#showTeam").change(function () {
var searchFor = $(this).val().toLowerCase();
$("#games table tbody tr td:contains('" + searchFor + "')").parent().css('background','red');
})
});
Demo

Well, yes. The first parameter will refer to the index of the element in the set of matched elements. Just do:
...
$("select[name='showTeam'] option:selected").each(function() {
var str = $(this).val().toLowerCase();
$("td").filter(function() {
return $(this).text().toLowerCase().indexOf(str) != -1;
}).css('background', 'red');​
...
since str will already be available within the scope of the filter callback function.
From the docs:
.filter( function(index) )
function(index)A function used as a test for each element in the set.
this is the current DOM element.

$(document).ready(function(){
$("#showTeam").change(function() {
var target = $("#showTeam").val();
$("#games td:contains(" + target + ")").css('background','red');
});
});
I've made a jsfiddle to demonstrate this.
http://jsfiddle.net/Zf5dA/
Notes:
:contains() is case sensitive so I had to make "Chelsea" capitalized in the table.
I simplified the selector on the select element - it has an id, so I selected that. Faster and simpler.
This will find td cells that contain the text, but they can also contain other text. This will get you started.

jQuery Table Row Filtering by Column

I'm trying to filter table rows in an intelligent way (as opposed to just tons of code that get the job done eventually) but a rather dry of inspiration.
I have 5 columns in my table. At the top of each there is either a dropdown or a textbox with which the user may filter the table data (basically hide the rows that don't apply)
There are plenty of table filtering plugins for jQuery but none that work quite like this, and thats the complicated part :|

Here is a basic filter example http://jsfiddle.net/urf6P/3/
It uses the jquery selector :contains('some text') and :not(:contains('some text')) to decide if each row should be shown or hidden. This might get you going in a direction.
EDITED to include the HTML and javascript from the jsfiddle:
$(function() {
$('#filter1').change(function() {
$("#table td.col1:contains('" + $(this).val() + "')").parent().show();
$("#table td.col1:not(:contains('" + $(this).val() + "'))").parent().hide();
});
});

Slightly enhancing the accepted solution posted by Jeff Treuting, filtering capability can be extended to make it case insensitive. I take no credit for the original solution or even the enhancement. The idea of enhancement was lifted from a solution posted on a different SO post offered by Highway of Life.
Here it goes:
// Define a custom selector icontains instead of overriding the existing expression contains
// A global js asset file will be a good place to put this code
$.expr[':'].icontains = function(a, i, m) {
return $(a).text().toUpperCase()
.indexOf(m[3].toUpperCase()) >= 0;
};
// Now perform the filtering as suggested by #jeff
$(function() {
$('#filter1').on('keyup', function() { // changed 'change' event to 'keyup'. Add a delay if you prefer
$("#table td.col1:icontains('" + $(this).val() + "')").parent().show(); // Use our new selector icontains
$("#table td.col1:not(:icontains('" + $(this).val() + "'))").parent().hide(); // Use our new selector icontains
});
});

This may not be the best way to do it, and I'm not sure about the performance, but an option would be to tag each column (in each row) with an id starting with a column identifier and then a unique number like a record identifier.
For example, if you had a column Produce Name, and the record ID was 763, I would do something like the following:
​​<table id="table1">
<thead>
<tr>
<th>Artist</th>
<th>Album</th>
<th>Genre</th>
<th>Price</th>
</tr>
</thead>
<tbody>
<tr>
<td id="artist-127">Red Hot Chili Peppers</td>
<td id="album-195">Californication</td>
<td id="genre-1">Rock</td>
<td id="price-195">$8.99</td>
</tr>
<tr>
<td id="artist-59">Santana</td>
<td id="album-198">Santana Live</td>
<td id="genre-1">Rock</td>
<td id="price-198">$8.99</td>
</tr>
<tr>
<td id="artist-120">Pink Floyd</td>
<td id="album-183">Dark Side Of The Moon</td>
<td id="genre-1">Rock</td>
<td id="price-183">$8.99</td>
</tr>
</tbody>
</table>
You could then use jQuery to filter based on the start of the id.
For example, if you wanted to filter by the Artist column:
var regex = /Hot/;
$('#table1').find('tbody').find('[id^=artist]').each(function() {
if (!regex.test(this.innerHTML)) {
this.parentNode.style.backgroundColor = '#ff0000';
}
});

You can filter specific column by just adding children[column number] to JQuery filter. Normally, JQuery looks for the keyword from all the columns in every row. If we wanted to filter only ColumnB on below table, we need to add childern[1] to filter as in the script below. IndexOf value -1 means search couldn't match. Anything above -1 will make the whole row visible.
ColumnA | ColumnB | ColumnC
John Doe 1968
Jane Doe 1975
Mike Nike 1990
$("#myInput").on("change", function () {
var value = $(this).val().toLowerCase();
$("#myTable tbody tr").filter(function () {
$(this).toggle($(this.children[1]).text().toLowerCase().indexOf(value) > -1)
});
});

step:1 write the following in .html file
<input type="text" id="myInput" onkeyup="myFunction()" placeholder="Search for names..">
<table id="myTable">
<tr class="header">
<th style="width:60%;">Name</th>
<th style="width:40%;">Country</th>
</tr>
<tr>
<td>Alfreds Futterkiste</td>
<td>Germany</td>
</tr>
<tr>
<td>Berglunds snabbkop</td>
<td>Sweden</td>
</tr>
<tr>
<td>Island Trading</td>
<td>UK</td>
</tr>
<tr>
<td>Koniglich Essen</td>
<td>Germany</td>
</tr>
</table>
step:2 write the following in .js file
function myFunction() {
// Declare variables
var input, filter, table, tr, td, i;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
table = document.getElementById("myTable");
tr = table.getElementsByTagName("tr");
// Loop through all table rows, and hide those who don't match the search query
for (i = 0; i < tr.length; i++) {
td = tr[i].getElementsByTagName("td")[0];
if (td) {
if (td.innerHTML.toUpperCase().indexOf(filter) > -1) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
}
}
}