Clicked Table Row Returns NaN - javascript

I am trying to identify as to what row number the user clicks on and to alert them. I wanted to exempt the table headers from being counted so I have intentionally used the this.rowIndex - 1 but when I click on any row, the alert box is returning a NaN value.
How do you fix this?
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#mstrTable {
border: 1px solid black
}
#mstrTable td, th {
border: 1px solid black
}
#mstrTable tr.normal td {
color: black;
background-color: white;
}
#mstrTable tr.highlighted td {
color: white;
background-color: gray;
}
</style>
</head>
<body>
<table id="mstrTable">
<thead>
<tr>
<th>File Number</th>
<th>Date1</th>
<th>Date2</th>
<th>Status</th>
<th>Num.</th>
</tr>
</thead>
<tbody>
<tr>
<td>KABC</td>
<td>09/12/2002</td>
<td>09/12/2002</td>
<td>Submitted</td>
<td>0</td>
</tr>
<tr>
<td>KCBS</td>
<td>09/11/2002</td>
<td>09/11/2002</td>
<td>Approved</td>
<td>1 </td>
</tr>
<tr>
<td>WFLA</td>
<td>09/11/2002</td>
<td>09/11/2002</td>
<td>Submitted</td>
<td>2</td>
</tr>
<tr>
<td>WTSP</td>
<td>09/15/2002</td>
<td>09/15/2002</td>
<td>In-Progress</td>
<td>3</td>
</tr>
</tbody>
</table>
<script type="text/javascript">
(
function( )
{
var trows = document.getElementById("mstrTable").rows;
for ( var t = 1; t < trows.length; ++t )
{
trow = trows[t];
trow.className = "normal";
trow.onclick = highlightRow;
}
function highlightRow(e)
{
alert('Row is ' + this.rowIndex-1)
for ( var t = 1; t < trows.length; ++t )
{
trow = trows[t];
trow.className = ( trow == this && trow.className != "highlighted") ? "highlighted" : "normal";
}
}
}
)();
</script>
</body>
</html>


Put parentheses around math operations so they take precedence over string concatenation.
alert('Row is ' + (this.rowIndex-1))
Fiddle


Change it to this.rowIndex instead of this.rowIndex-1.

Related

Search different columns of table

I'm trying to work a way where you can click a button and search by different columns in a table. I can figure out the buttons and to change the [0] to [1] to search different columns, but how would i make it more dynamic, using javascript. I only want to search by 1 column at a time, so only search by first name or only search by nationality etc...
it is a basic code, I did web programming 20 years ago and im trying to get back up to speed.
function myFunction() {
var input, filter, table, tr, td, i, txtValue;
input = document.getElementById("myInput");
filter = input.value.toUpperCase();
table = document.getElementById("myTable");
tr = table.getElementsByTagName("tr");
for (i = 0; i < tr.length; i++) {
td = tr[i].getElementsByTagName("td")[0];
if (td) {
txtValue = td.textContent || td.innerText;
if (filter) {
if (txtValue.toUpperCase() == filter) {
tr[i].style.display = "";
} else {
tr[i].style.display = "none";
}
} else {
tr[i].style.display = "";
}
}
}
}
<div class="w3-container">
<h2>All Information</h2>
<div class="w3-bar">
<button class="w3-button w3-black" style="width: 10%">#</button>
<button class="w3-button w3-teal" style="width: 10%">First Name</button>
<button class="w3-button w3-red" style="width: 10%">Last Name</button>
<button class="w3-button w3-yellow" style="width: 10%">Address</button>
<button class="w3-button w3-green" style="width: 10%">Age</button>
<button class="w3-button w3-blue" style="width: 10%">Date of Birth</button>
<button class="w3-button w3-purple" style="width: 10%">Nationality</button>
</div>
<input id="myInput" onkeyup="myFunction()" placeholder="Search by ID Number..." title="Type in a number" type="text">
<table id="myTable">
<tr class="header">
<th class="w3-center" style="width: 2%;">#</th>
<th style="text-align: left; width: 17%;">First Name</th>
<th style="text-align: left; width: 17%;">Last Name</th>
<th style="text-align: left; width: 16%;">Address</th>
<th style="text-align: left; width: 16%;">Age</th>
<th style="text-align: left; width: 16%;">Date of Birth</th>
<th style="text-align: left; width: 16%;">Nationality</th>
</tr>
<tr>
<td class="w3-center">1</td>
<td>John</td>
<td>Smith</td>
<td>Pearse Street</td>
<td>45</td>
<td>01/10/1977</td>
<td>English</td>
</tr>
<tr>
<td class="w3-center">11</td>
<td>Tim</td>
<td>Green</td>
<td>Rosedale Avenue</td>
<td>23</td>
<td>17/04/1999</td>
<td>American</td>
</tr>
<tr>
<td class="w3-center">114</td>
<td>Tom</td>
<td>Deane</td>
<td>Greenwood Road</td>
<td>42</td>
<td>27/11/1980</td>
<td>English</td>
</tr>
<tr>
<td class="w3-center">208</td>
<td>Anna</td>
<td>Green</td>
<td>Rosedale Avenue</td>
<td>23</td>
<td>11/06/1999</td>
<td>Scottish</td>
</tr>
<tr>
<td class="w3-center">259</td>
<td>Rachel</td>
<td>Waters</td>
<td>Station Road</td>
<td>87</td>
<td>11/02/1936</td>
<td>Irish</td>
</tr>
<tr>
<td class="w3-center">1</td>
<td>George</td>
<td>Taylor</td>
<td>Beach Avenue</td>
<td>52</td>
<td>30/07/1971</td>
<td>South African</td>
</tr>
<tr>
<td class="w3-center">1</td>
<td>Neil</td>
<td>Smyth</td>
<td>Beach Road</td>
<td>6</td>
<td>15/12/2016</td>
<td>Australian</td>
</tr>
<tr>
<td class="w3-center">1</td>
<td>Sarah</td>
<td>Smyth</td>
<td>Beach Road</td>
<td>30</td>
<td>06/01/1993</td>
<td>Australian</td>
</tr>
</table>
</div>

const column = 3
const searchFor = 'GRE'
for (const cell of document.querySelectorAll(`#myTable tr td:nth-child(${column})`))
if (cell.textContent.toUpperCase().includes(searchFor))
cell.style.background = 'lightgreen'
<table id="myTable">
<tr class="header">
<th class="w3-center" style="width: 2%;">#</th>
<th style="text-align: left; width: 17%;">First Name</th>
<th style="text-align: left; width: 17%;">Last Name</th>
<th style="text-align: left; width: 16%;">Address</th>
<th style="text-align: left; width: 16%;">Age</th>
<th style="text-align: left; width: 16%;">Date of Birth</th>
<th style="text-align: left; width: 16%;">Nationality</th>
</tr>
<tr>
<td class="w3-center">1</td>
<td>John</td>
<td>Smith</td>
<td>Pearse Street</td>
<td>45</td>
<td>01/10/1977</td>
<td>English</td>
</tr>
<tr>
<td class="w3-center">11</td>
<td>Tim</td>
<td>Green</td>
<td>Rosedale Avenue</td>
<td>23</td>
<td>17/04/1999</td>
<td>American</td>
</tr>
<tr>
<td class="w3-center">114</td>
<td>Tom</td>
<td>Deane</td>
<td>Greenwood Road</td>
<td>42</td>
<td>27/11/1980</td>
<td>English</td>
</tr>
<tr>
<td class="w3-center">208</td>
<td>Anna</td>
<td>Green</td>
<td>Rosedale Avenue</td>
<td>23</td>
<td>11/06/1999</td>
<td>Scottish</td>
</tr>
<tr>
<td class="w3-center">259</td>
<td>Rachel</td>
<td>Waters</td>
<td>Station Road</td>
<td>87</td>
<td>11/02/1936</td>
<td>Irish</td>
</tr>
<tr>
<td class="w3-center">1</td>
<td>George</td>
<td>Taylor</td>
<td>Beach Avenue</td>
<td>52</td>
<td>30/07/1971</td>
<td>South African</td>
</tr>
<tr>
<td class="w3-center">1</td>
<td>Neil</td>
<td>Smyth</td>
<td>Beach Road</td>
<td>6</td>
<td>15/12/2016</td>
<td>Australian</td>
</tr>
<tr>
<td class="w3-center">1</td>
<td>Sarah</td>
<td>Smyth</td>
<td>Beach Road</td>
<td>30</td>
<td>06/01/1993</td>
<td>Australian</td>
</tr>
</table>

Looking for something like that ? (first version)
const
btSearch = document.querySelector('#bt-search')
, txt2search = document.querySelector('#txt-2-search')
, searchResult = document.querySelector('#search-result')
, myTable = document.querySelector('#my-table')
;
btSearch.disabled = true
;
myTable.onclick = ({target:TH}) =>
{
if (!TH.matches('th')) return;
clearFounds();
btSearch.disabled = true;
if (TH.classList.toggle('selec'))
{
btSearch.disabled = false;
myTable.querySelectorAll('th.selec')
.forEach(th => th.classList.toggle('selec',th===TH))
}
}
btSearch.onclick=()=>
{
clearFounds();
let txt = txt2search.value.trim()
, Rtxt = new RegExp(txt, 'i')
, nCol = 1 + myTable.querySelector('th.selec').cellIndex
, counter = 0
;
if (txt==='')
{
searchResult.textContent = 'nothing to search...';
return;
}
myTable.querySelectorAll(`tr td:nth-child(${nCol})`).forEach(td =>
{
if(Rtxt.test(td.textContent))
{
counter++;
td.classList.add('found');
}
})
searchResult.textContent = (counter===0) ? 'no result' : `${counter} element(s) found`;
}
function clearFounds()
{
searchResult.textContent = '.';
myTable.querySelectorAll('td.found')
.forEach(td => td.classList.remove('found'));
}
body {
font-family : Arial, Helvetica, sans-serif;
font-size : 16px;
margin : 1rem;
}
table {
border-collapse : separate;
border-spacing : 1px;
background-color : lightslategrey;
}
th { background: cadetblue; padding: .3em .6em; cursor: pointer; }
td { background: whitesmoke; padding: .2em .5em; }
tr *:first-child { text-align: center; font-style: oblique; }
tr * { white-space: nowrap; }
th:not(.selec):hover { background: orange; }
th.selec { background: orangered }
td.found { background: aquamarine; }
caption {
text-align : left;
padding : .4rem;
font-size : 1.2rem;
background-color: #a0dbdd;
}
#search-result {
float : right;
font-size : .9rem;
}
<table id="my-table">
<caption>
Find :
<input type="text" id="txt-2-search" placeholder="select a column first...">
<button id="bt-search"> do search </button>
<span id="search-result">0</span>
</caption>
<thead>
<tr>
<th>#</th><th>First Name</th><th>Last Name</th><th>Address</th><th>Age</th><th>Date of Birth</th><th>Nationality</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td><td>John</td><td>Smith</td><td>Pearse Street</td><td>45</td><td>01/10/1977</td><td>English</td>
</tr>
<tr>
<td>11</td><td>Tim</td><td>Green</td><td>Rosedale Avenue</td><td>23</td><td>17/04/1999</td><td>American</td>
</tr>
<tr>
<td>114</td><td>Tom</td><td>Deane</td><td>Greenwood Road</td><td>42</td><td>27/11/1980</td><td>English</td>
</tr>
<tr>
<td>208</td><td>Anna</td><td>Green</td><td>Rosedale Avenue</td><td>23</td><td>11/06/1999</td><td>Scottish</td>
</tr>
<tr>
<td>259</td><td>Rachel</td><td>Waters</td><td>Station Road</td><td>87</td><td>11/02/1936</td><td>Irish</td>
</tr>
<tr>
<td>1</td><td>George</td><td>Taylor</td><td>Beach Avenue</td><td>52</td><td>30/07/1971</td><td>South African</td>
</tr>
<tr>
<td>1</td><td>Neil</td><td>Smyth</td><td>Beach Road</td><td>6</td><td>15/12/2016</td><td>Australian</td>
</tr>
<tr>
<td>1</td><td>Sarah</td><td>Smyth</td><td>Beach Road</td><td>30</td><td>06/01/1993</td><td>Australian</td>
</tr>
</tbody>
</table>
As the subject interested me...
And sorry, there may be a bit too many technical things here, but I've already spent a bit too many hours there, I'll come back to explain and comment. If any questions come up here in the meantime, I'll do my best to answer them.
const
txt2search = document.querySelector('#txt-2-search')
, searchResult = document.querySelector('#search-result')
, myTable = document.querySelector('#my-table')
, tableHeads = myTable.querySelectorAll('thead th')
, styleColHover = document.querySelector('#style-col-hover')
, mouseHoverTD = ({target: TD}) =>
{
let ref = (!!TD && TD.matches('td')) ? TD.cellIndex +1 : -1;
styleColHover.textContent = `td:nth-child(${ref}) { background: var(--col-hover);}`;
};
myTable.tBodies[0].onmouseenter = mouseHoverTD;
myTable.tBodies[0].onmousemove = mouseHoverTD;
myTable.tBodies[0].onmouseout =_=> mouseHoverTD({target:null});
txt2search.onkeyup = ({key}) =>
{
if (key==='Enter') searchProcess();
}
myTable.onclick = ({target:colElm}) =>
{
if (!colElm.matches('th, td')) return;
if (colElm.matches('td'))
{
tableHeads.forEach(th=>th.classList.remove('selec'));
tableHeads[colElm.cellIndex].classList.add('selec');
}
else if (colElm.classList.toggle('selec'))
{
tableHeads.forEach(th=>th.classList.toggle('selec', th===colElm));
}
searchProcess();
}
function clearSearch()
{
searchResult.textContent = '.';
myTable.querySelectorAll('td.found').forEach(td => td.classList.remove('found'));
}
function searchProcess()
{
let indxElm = myTable.querySelector('thead th.selec')?.cellIndex ?? 'x';
clearSearch();
if(isNaN(indxElm)) return;
let txt = txt2search.value.trim()
, Regtxt = new RegExp(txt, 'i')
, counter = 0
, query = 'tr td:nth-child('+ ++indxElm +')'
;
if (txt==='')
{
searchResult.textContent = 'nothing to search...';
return;
}
myTable.querySelectorAll(query).forEach(td =>
{
if(Regtxt.test(td.textContent))
{
counter++;
td.classList.add('found');
}
})
searchResult.textContent =
(counter===0) ? 'no result' : `${counter} element(s) found`;
}
:root {
--col-hover : #eeafdb;
}
body {
font-family : Arial, Helvetica, sans-serif;
font-size : 16px;
margin : 1rem;
}
table {
border-collapse : separate;
border-spacing : 1px;
background-color : lightslategrey;
}
th { background: cadetblue; padding: .3em .6em; }
td { background: whitesmoke; padding: .2em .5em; }
tr *:first-child { text-align: center; font-style: oblique; }
tr * { white-space: nowrap; cursor: pointer; }
th:not(.selec):hover { background: orange; }
th.selec { background: orangered; }
td.found { background: aquamarine !important; }
caption {
text-align : left;
padding : .4rem;
font-size : 1.2rem;
background : #a0dbdd;
}
#search-result {
float : right;
font-size : .9rem;
}
<style id="style-col-hover"> td:nth-child(-1) { background : var(--col-hover);}</style>
<table id="my-table">
<caption>
Find :
<input type="text" id="txt-2-search" placeholder="select a column first...">
<span id="search-result">0</span>
</caption>
<thead>
<tr>
<th>#</th><th>First Name</th><th>Last Name</th><th>Address</th><th>Age</th><th>Date of Birth</th><th>Nationality</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td><td>John</td><td>Smith</td><td>Pearse Street</td><td>45</td><td>01/10/1977</td><td>English</td>
</tr>
<tr>
<td>11</td><td>Tim</td><td>Green</td><td>Rosedale Avenue</td><td>23</td><td>17/04/1999</td><td>American</td>
</tr>
<tr>
<td>114</td><td>Tom</td><td>Deane</td><td>Greenwood Road</td><td>42</td><td>27/11/1980</td><td>English</td>
</tr>
<tr>
<td>208</td><td>Anna</td><td>Green</td><td>Rosedale Avenue</td><td>23</td><td>11/06/1999</td><td>Scottish</td>
</tr>
<tr>
<td>259</td><td>Rachel</td><td>Waters</td><td>Station Road</td><td>87</td><td>11/02/1936</td><td>Irish</td>
</tr>
<tr>
<td>1</td><td>George</td><td>Taylor</td><td>Beach Avenue</td><td>52</td><td>30/07/1971</td><td>South African</td>
</tr>
<tr>
<td>1</td><td>Neil</td><td>Smyth</td><td>Beach Road</td><td>6</td><td>15/12/2016</td><td>Australian</td>
</tr>
<tr>
<td>1</td><td>Sarah</td><td>Smyth</td><td>Beach Road</td><td>30</td><td>06/01/1993</td><td>Australian</td>
</tr>
</tbody>
</table>

Here's my take Dar.
//Define a column to look in
// const column = 4
//Get the value from the input
// const searchFor = document.getElementById('myInput').value
//Grab all the cells for the column
columnCells = Array.from(document.querySelectorAll(`#myTable tr td:nth-child(${column})`))
//Clear out previous matches
columnCells.forEach(cell=>cell.style.background = 'white')
//Filter the cells by the searchFor term
matchingCells = columnCells.filter(cell=>{
return cell.textContent.toLowerCase().includes(searchFor.toLowerCase()) && searchFor != ""
})
//Color them
matchingCells.forEach(cell=>cell.style.background = 'yellow')

Nth child in table not working Javascript

The td:nth-child('n') is not working over in my table it gives null in the log Where as it is working when i use children[n] it is a simple function for searching
I couldn't find the reason why it is giving out a null.. Here is the code
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Table Searching</title>
<style>
th{
font-weight: bolder;
}
table, th, td{
font-size: 20px;
border: 2px solid black;
border-collapse: collapse;
}
</style>
</head>
<body>
<input type="text" name="search">
<button class="s" onclick="Search()">Search by Name</button>
<button class="s" onclick="Search()">Search by Country</button>
<button class="s" onclick="Search()">Search by Pet</button>
<table>
<tr>
<th>Name</th>
<th>Country</th>
<th>Pet</th>
</tr>
<tr>
<td>Abhi</td>
<td>Canada</td>
<td>koala</td>
</tr>
<tr>
<td>Riya</td>
<td>France</td>
<td>Parrot</td>
</tr>
<tr>
<td>Sid</td>
<td>UK</td>
<td>Pig</td>
</tr>
<tr>
<td>Kritika</td>
<td>Germany</td>
<td>Cat</td>
</tr>
<tr>
<td>Kartik</td>
<td>China</td>
<td>Frog</td>
</tr>
<tr>
<td>Radhika</td>
<td>India</td>
<td>Dog</td>
</tr>
</table>
<script>
var input=document.getElementsByName("search")[0];
var s=document.getElementsByClassName("s");
var n=0;
function Search(){
for (var j=0; j<s.length; j++)
{
console.log("element");
console.log(s[j]);
console.log("target");
console.log(event.target);
if(s[j]==event.target){
n=j;
console.log(n);
}
}
var val= input.value;
var a=document.querySelectorAll("table > tbody > tr");
console.log(a);
for(var i =0; i<a.length; i++)
{
var d = a[i].querySelector('td:nth-child("+n+")');
console.log(d);
if(d.innerHTML.toLowerCase()==val.toLowerCase()){
a[i].style.display="";
}
else
{
a[i].style.display="none";
}
}
}
</script>
</body>
</html>

Here are the three reasons why you are giving out null in your code:
First, as stated by Satpal, this code 'td:nth-child("+n+")' will not replace n by its value. It's like writing td:nth-child("+n+") in css.
The solution for this is to write: 'td:nth-child(' + n + ')'. You then concatenate the value of n with the rest of the string
The value of n is an index in a array, so it starts at 0 and ends at array.length - 1. The problem is that the nth-child selector actually selects the nth-child (brilliant naming), so if n is 0 (in the case of searching by name), you'll try to select the 0th-child, wihich doesn't exist... You then have to write: 'td:nth-child(' + (n + 1) + ')' or change the definition of n
You have no <tbody> tag in your HTML. Which means that all the content of the table will be wrapped in a tbody and your selector document.querySelectorAll("table > tbody > tr")will also selects the header of your table. To avoid that, change your HTML accordingly.
Something like that:
<table>
<thead>
<tr>
<th>Name</th>
<th>Country</th>
<th>Pet</th>
</tr>
</thead>
<tbody>
<tr>
<td>Abhi</td>
<td>Canada</td>
<td>koala</td>
</tr>
<tr>
<td>Riya</td>
<td>France</td>
<td>Parrot</td>
</tr>
<tr>
<td>Sid</td>
<td>UK</td>
<td>Pig</td>
</tr>
<tr>
<td>Kritika</td>
<td>Germany</td>
<td>Cat</td>
</tr>
<tr>
<td>Kartik</td>
<td>China</td>
<td>Frog</td>
</tr>
<tr>
<td>Radhika</td>
<td>India</td>
<td>Dog</td>
</tr>
</tbody>
</table>
Here is a jsfiddle where the search works fine: https://jsfiddle.net/n23685b6/1/
Hope this helps!

scrollToNthChild = (): * => {
var tableBody = document.getElementById('event-table-body');
var tableRows = tableBody.getElementsByTagName('tr');
let targetElement = tableRows[7];
targetElement.scrollIntoView();
}

How do I create the empty table data boxes with JavaScript?

I want to be able to create the html table like this without using any html and only writing JavaScript.
How do I create the empty table data boxes with JavaScript?
table {
border: 1px solid black;
}
th {
border: 1px solid blue;
}
td {
border: 1px solid red;
}
<!DOCTYPE html>
<html>
<head></head>
<body>
<table>
<tr>
<th>One</th>
<th>Two</th>
<th>Three</th>
</tr>
<tr>
<th>A</th>
<td></td>
<td></td>
</tr>
<tr>
<th>B</th>
<td></td>
<td></td>
</tr>
<tr>
<th>C</th>
<td></td>
<td></td>
</tr>
</table>
</body>
<html>

Try this:
var myTableRows = [
[{"th":"One"},{"th":"Two"},{"th":"Three"}],
[{"th":"A"},{"td":""},{"td":""}],
[{"th":"B"},{"td":""},{"td":""}],
[{"th":"C"},{"td":""},{"td":""}]
];
var table = document.createElement("table");
for(var rowIndex in myTableRows) {
var row = document.createElement("tr");
for(var colIndex in myTableRows[rowIndex]) {
for(var tag in myTableRows[rowIndex][colIndex]) {
var cell = document.createElement(tag);
var cellContents = document.createTextNode(myTableRows[rowIndex][colIndex][tag]);
cell.appendChild(cellContents);
row.appendChild(cell);
}
}
table.appendChild(row);
}
document.body.appendChild(table);

Position div and get external js file work onload

I have a JavaScript and CSS that works in fiddle but not when I use outside fiddle. fiddle
when I plug it in to the html like below, it doesn't work. I believe I am missing some code?
the count div is not in the right position when I am not viewing it from jsfiddle. How can I position it relative to the search input?
it takes a minute to generate the table, is it because my code is badly written?
*well i do have 800rows*8columns
Thank you in advance.
HTML
<head>
<link rel="stylesheet" type="text/css" href="search-table.css">
<script type="text/javascript" src="jquery-1.11.1.min.js"></script>
<script type="text/javascript" src="search-table.js"></script>
</head>
<body>
</body>
<table id="table-body">
<thead>
<tr>
<th>No.</th>
<th>Name</th>
<th>Address</th>
<th>Tel</th>
<th>Fax</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Apple</td>
<td>A1</td>
<td>1-11</td>
<td>1-22</td>
</tr>
<tr>
<td>2</td>
<td>Banana</td>
<td>A2</td>
<td>2-11</td>
<td>2-22</td>
</tr>
<tr>
<td>3Asdqwe</td>
<td>Cherry</td>
<td>A3</td>
<td>3-11</td>
<td>3-22</td>
</tr>
<tr>
<td>4A</td>
<td>Duriaen</td>
<td>A4</td>
<td>4-11</td>
<td>4-22</td>
</tr>
<tr>
<td>1</td>
<td>Apple</td>
<td>A1</td>
<td>5-11</td>
<td>5-22</td>
</tr>
<tr>
<td>2</td>
<td>Banana</td>
<td>A2</td>
<td>6-11</td>
<td>6-22</td>
</tr>
<tr>
<td>3Asdqwe</td>
<td>Cherry</td>
<td>A3</td>
<td>7-11</td>
<td>7-22</td>
</tr>
<tr>
<td>4A</td>
<td>Duriaen</td>
<td>A4</td>
<td>8-11</td>
<td>8-22</td>
</tr>
</tbody>
</table>
</html>
JavaScript
//Perparing table
/*
*comment
*/
$("<div>", {
class: "tablewrapper"
}).insertBefore("table#table-body");
$("<table>", {
class: "header"
}).appendTo($("<div>", {
class: "headerwrapper"
}).appendTo("div.tablewrapper"));
$("table#table-body").appendTo($("<div>", {
class: "bodywrapper"
}).appendTo("div.tablewrapper"));
$("table#table-body>thead").clone().val("").appendTo("table.header");
$("table.header>tr").removeClass("header_hidden");
$("table#table-body").find("thead tr").addClass("header_hidden");
$("table#table-body").find("tbody td:nth-child(2)").addClass("lefty");
$("<input>", {
type: "text"
}).attr("id", "search-criteria").appendTo($("<div>", {
class: "s_box"
}).insertAfter("div.headerwrapper"));
$("<div>").attr("id", "count").insertAfter("div.s_box");
resizeTable();
var bodyTd = $("table#table-body tr td");
$(window).resize(resizeTable);
//search function
$("#search-criteria").on("keyup", function () {
var keyword = $(this).val().replace(/[Ａ-Ｚａ-ｚ０-９]/g, function (td_word) {
return String.fromCharCode(td_word.charCodeAt(0) - 0xFEE0);
}).toLowerCase();
var row = "table#table-body tbody>tr";
if (keyword !== "") {
$(row).each(function () {
var td_word = $(this).text().toLowerCase();
//shorthand if function
$(this).closest(row)[td_word.indexOf(keyword) !== -1 ? 'show' : 'hide']();
});
var srowCount = $(row).filter(":visible").length;
document.getElementById('count').innerHTML = srowCount;
if (srowCount === 0) {
if (!$(row).last().hasClass('s_empty')) {
$("table#table-body tbody").last().append('<tr class="s_empty"><td colspan="5" style="text-align:center">Search not found</td></tr>');
}
$("tr.s_empty").show();
} else {
$("tr.s_empty").remove();
}
} else {
$("tr.s_empty").remove();
$(row).show();
document.getElementById('count').innerHTML = $(row).length;
}
});
var row = "table#table-body tbody>tr";
var srowCount = $(row).filter(":visible").length;
document.getElementById('count').innerHTML = srowCount;
function resizeTable() {
//width adjustments
$("table.header").width($("#table-body").width());
$("div.s_box").width(($("div.headerwrapper").width() - 10)).height(($("table.header").height() - 9));
$("input#search-criteria").width(($("div.headerwrapper").width() - 30)).height(($("div.s_box").height() - 0.05));
var counter_h = ($("table.header").height() / 2 + $("table.header").height() - 1);
$("div#count").css({
"top": counter_h
});
var bodyTr = $("table#table-body tbody>tr:visible:eq(0) td");
console.log(bodyTr);
$("table.header tr:first th").each(function (index, value) {
$(this).width(bodyTr.eq(index).width());
});
//apply widths to every TD
$("table#table-body tr:gt(0)").each(function () {
$(this).children().each(function (index) {
$(this).width(bodyTr.eq(index).width());
});
});
}

you have to make s_box relative so that count becomes absolute according to it
.s_box {
position: relative;
}

There will error coming because of this JavaScript $("<div>", {class: "tablewrapper"}) that used. It should be like this $("<div>", {"class": "tablewrapper"}) for all places.
This is suggestion that,before preparing HTML from JavaScript use document ready event OR place your JavaScript at the end of html body elements.
<html>
<head>
<link rel="stylesheet" type="text/css" href="search-table.css">
<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.0.min.js"></script>
<script type="text/javascript">
//Perparing table
/*
*comment
*/
$(document).ready(function() {
$("<div>", {"class": "tablewrapper"}).insertBefore("table#table-body");
$("<table>", {"class": "header"}).appendTo($("<div>", {"class": "headerwrapper"}).appendTo("div.tablewrapper"));
$("table#table-body").appendTo($("<div>", {"class": "bodywrapper"}).appendTo("div.tablewrapper"));
$("table#table-body>thead").clone().val("").appendTo("table.header");
$("table.header>tr").removeClass("header_hidden");
$("table#table-body").find("thead tr").addClass("header_hidden");
$("table#table-body").find("tbody td:nth-child(2)").addClass("lefty");
$("<input>", {type: "text"}).attr("id","search-criteria").appendTo($("<div>", {"class":"s_box"}).insertAfter("div.headerwrapper"));
$("<div>").attr("id","count").insertAfter("div.s_box");
resizeTable();
var bodyTd = $("table#table-body tr td");
$(window).resize(resizeTable);
var row = "table#table-body tbody>tr";
var srowCount = $(row).filter(":visible").length;
document.getElementById('count').innerHTML = srowCount;
//search function
$("#search-criteria").on("keyup", function () {
var keyword = $(this).val().replace(/[Ａ-Ｚａ-ｚ０-９]/g, function (td_word) {
return String.fromCharCode(td_word.charCodeAt(0) - 0xFEE0);
}).toLowerCase();
var row = "table#table-body tbody>tr";
if (keyword !== "") {
$(row).each(function () {
var td_word = $(this).text().toLowerCase();
//shorthand if function
$(this).closest(row)[td_word.indexOf(keyword) !== -1 ? 'show' : 'hide']();
});
var srowCount = $(row).filter(":visible").length;
document.getElementById('count').innerHTML = srowCount;
if (srowCount === 0) {
if(!$(row).last().hasClass('s_empty'))
{
$("table#table-body tbody").last().append('<tr class="s_empty"><td colspan="5" style="text-align:center">Search not found</td></tr>');
}
$("tr.s_empty").show();
} else {
$("tr.s_empty").remove();
}
} else {
$("tr.s_empty").remove();
$(row).show();
document.getElementById('count').innerHTML = $(row).length;
}
});
});
function resizeTable() {
//width adjustments
$("table.header").width($("#table-body").width());
$("div.s_box").width(($("div.headerwrapper").width()-10)).height(($("table.header").height()-9));
$("input#search-criteria").width(($("div.headerwrapper").width()-30)).height(($("div.s_box").height()-0.05));
var counter_h = ($("table.header").height()/2+$("table.header").height()-1);
$("div#count").css({"top":counter_h});
var bodyTr = $("table#table-body tbody>tr:visible:eq(0) td");
console.log(bodyTr);
$("table.header tr:first th").each(function (index, value) {
$(this).width(bodyTr.eq(index).width());
});
//apply widths to every TD
$("table#table-body tr:gt(0)").each(function () {
$(this).children().each(function (index) {
$(this).width(bodyTr.eq(index).width());
});
});
}
</script>
<style>div.tablewrapper, div.headerwrapper, div.bodywrapper {
border:0px;
}
div.headerwrapper {
background-color:#1BA7F5;
}
div.bodywrapper {
height:100px;
overflow-y:scroll;
border-bottom:solid 2px #1BA7F5;
}
table.header, table#table-body {
border:0px;
border-collapse:collapse;
border-spacing:0px;
text-align:center;
}
table.header {
line-height:32px;
background-color:#1BA7F5;
color:#FFF;
}
table.header th {
padding-left:10px;
text-align:left;
font-weight: normal;
}
table#table-body {
width:100%;
}
table#table-body tr {
line-height:30px;
border-top:1px solid #C4C4C4;
}
table#table-body tr.header_hidden {
display:none;
}
table#table-body tr:hover {
background-color:#FFFF99;
}
table#table-body tbody td.lefty {
text-align:left;
}
div.s_box {
padding: 5px 5px;
background: #c4c4c4;
box-sizing: border-box;
}
input#search-criteria {
-webkit-appearance: none;
padding: 0 10px;
border: none;
border-radius: 6px;
font-size: 13px;
line-height: 23px;
background: #fff;
}
input#search-criteria:focus{
outline:none;
}
div#count {
position: absolute;
right: 17px;
color: #FFF;
background-color: #9EB4C2;
line-height: 19px;
font-size: 15px;
padding: 0 5px;
border-radius: 3px;
}
</style>
</head>
<body>
</body>
<table id="table-body">
<thead>
<tr>
<th>No.</th>
<th>Name</th>
<th>Address</th>
<th>Tel</th>
<th>Fax</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Apple</td>
<td>A1</td>
<td>1-11</td>
<td>1-22</td>
</tr>
<tr>
<td>2</td>
<td>Banana</td>
<td>A2</td>
<td>2-11</td>
<td>2-22</td>
</tr>
<tr>
<td>3Asdqwe</td>
<td>Cherry</td>
<td>A3</td>
<td>3-11</td>
<td>3-22</td>
</tr>
<tr>
<td>4A</td>
<td>Duriaen</td>
<td>A4</td>
<td>4-11</td>
<td>4-22</td>
</tr>
<tr>
<td>1</td>
<td>Apple</td>
<td>A1</td>
<td>5-11</td>
<td>5-22</td>
</tr>
<tr>
<td>2</td>
<td>Banana</td>
<td>A2</td>
<td>6-11</td>
<td>6-22</td>
</tr>
<tr>
<td>3Asdqwe</td>
<td>Cherry</td>
<td>A3</td>
<td>7-11</td>
<td>7-22</td>
</tr>
<tr>
<td>4A</td>
<td>Duriaen</td>
<td>A4</td>
<td>8-11</td>
<td>8-22</td>
</tr>
</tbody>
</table>
</html>

Finding the table row number of a clicked row

How can functionaity be added to the existing javascript coding below to find out as to what row number is clicked. The table headers should be exempt, and the dataset will start at ID number 0.
So for example, if the 2nd row of the table was clicked, an alert box would popup saying that "ID # is 1"
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
#mstrTable {
border: 1px solid black
}
#mstrTable td, th {
border: 1px solid black
}
#mstrTable tr.normal td {
color: black;
background-color: white;
}
#mstrTable tr.highlighted td {
color: white;
background-color: gray;
}
</style>
</head>
<body>
<table id="mstrTable">
<thead>
<tr>
<th>File Number</th>
<th>Date1</th>
<th>Date2</th>
<th>Status</th>
<th>Num.</th>
</tr>
</thead>
<tbody>
<tr>
<td>KABC</td>
<td>09/12/2002</td>
<td>09/12/2002</td>
<td>Submitted</td>
<td>0</td>
</tr>
<tr>
<td>KCBS</td>
<td>09/11/2002</td>
<td>09/11/2002</td>
<td>Approved</td>
<td>1 </td>
</tr>
<tr>
<td>WFLA</td>
<td>09/11/2002</td>
<td>09/11/2002</td>
<td>Submitted</td>
<td>2</td>
</tr>
<tr>
<td>WTSP</td>
<td>09/15/2002</td>
<td>09/15/2002</td>
<td>In-Progress</td>
<td>3</td>
</tr>
</tbody>
</table>
<script type="text/javascript">
(
function( )
{
var trows = document.getElementById("mstrTable").rows;
for ( var t = 1; t < trows.length; ++t )
{
trow = trows[t];
trow.className = "normal";
trow.onclick = highlightRow;
}
function highlightRow( )
{
for ( var t = 1; t < trows.length; ++t )
{
trow = trows[t];
trow.className = ( trow == this && trow.className != "highlighted") ? "highlighted" : "normal";
}
}
}
)();
</script>
</body>
</html>

Checkout rowIndex property here. It starts from 0.

Just put data-row-no attribut to every <tr>. Then from JavaScript call trow.getAttribute('data-row-no') to get current row.
...
<table id="mstrTable">
<thead>
<tr>
<th>File Number</th>
<th>Date1</th>
<th>Date2</th>
<th>Status</th>
<th>Num.</th>
</tr>
</thead>
<tbody>
<tr data-row-no="0">
<td>KABC</td>
<td>09/12/2002</td>
<td>09/12/2002</td>
<td>Submitted</td>
<td>0</td>
</tr>
<tr data-row-no="1">
<td>KCBS</td>
<td>09/11/2002</td>
<td>09/11/2002</td>
<td>Approved</td>
<td>1 </td>
</tr>
<tr data-row-no="2">
<td>WFLA</td>
<td>09/11/2002</td>
<td>09/11/2002</td>
<td>Submitted</td>
<td>2</td>
</tr>
<tr data-row-no="3">
<td>WTSP</td>
<td>09/15/2002</td>
<td>09/15/2002</td>
<td>In-Progress</td>
<td>3</td>
</tr>
...
(
function( )
{
var trows = document.getElementById("mstrTable").rows;
for ( var t = 1; t < trows.length; ++t )
{
trow = trows[t];
trow.className = "normal";
trow.onclick = highlightRow;
}
function highlightRow( )
{
for ( var t = 1; t < trows.length; ++t )
{
trow = trows[t];
trow.className = ( trow == this && trow.className != "highlighted") ? "highlighted" : "normal";
alert(trow.getAttribute('data-row-no'));
}
}
}
)();

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