I used to have $("#results_table tr").remove()
If I put the table selector in a variable var table = $("#results_table"), how do I access tr?
results_table.tr.remove(); doesn't seem to work.
You already have jquery object saved in variable, you can use all jquery methods on it directly, example: table.find("tr").remove();
var table = $("table")
table.find("tr").remove()
var table = $("table")
table.find("tr").remove()
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>test
<td>
</tr>
</table>
var table = $("table")
table.find("tr").addClass("active")
example:
var table = $("table")
table.find("tr").addClass("active")
.active{
color:red;}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table>
<tr>
<td>test
<td>
</tr>
</table>
And if you save it as vanilla JS you can use rows:
var table = document.querySelector("table");
table.rows[0].remove();
var table = document.querySelector("table");
table.rows[0].remove();
.active{
color:red;}
<table>
<tr>
<td>test
<td>
</tr>
</table>
I hope I have been helpful
var x = document.getElementById("results_table");
var y = x.querySelector("tr");
y.remove();
Related
I have a table like
<table id="misc_inputs">
<thead>
<tr><th>Property</th><th>Input</th></tr>
</thead>
<tbody>
<tr>
<td>a</td>
<td><input type="number" value="1"></td>
</tr>
<tr>
<td>b</td>
<td><input type="number" value="2"></td>
</tr>
...
I would like to convert that table to a Javascript object like
misc_inputs = {"a": 1, "b": 2, ...
How can the result be generated?
You can use below re-usable javascript method to convert any HTML table into Javascript object.
<table id="MyTable">
<thead>
<tr><th>Property</th><th>Input</th></tr>
</thead>
<tbody>
<tr>
<td>a</td>
<td><input type="number" value="1"></td>
</tr>
<tr>
<td>b</td>
<td><input type="number" value="2"></td>
</tr>
</tbody>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>
$(document).ready(function () {
function ConvertHTMLToJSObject(htmlTableId)
{
var objArr = {};
var trList = $('#' + htmlTableId).find('tr');
$('#' + htmlTableId).find('tbody tr').each(function ()
{
var row = $(this);
var key = $(row).first().text().trim();
var value = $(row).find('input').attr("value");
objArr[key] = value;
});
return objArr;
}
var obj = ConvertHTMLToJSObject("MyTable");
console.log(obj);
});
You can loop through each inputs and create the object:
var misc_inputs = {};
$("#misc_inputs input[type=number]").each(function(i, el){
var k = $(this).closest('td').prev().text();
return misc_inputs[k] = +el.value;
});
console.log(misc_inputs);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id="misc_inputs">
<thead>
<tr><th>Property</th><th>Input</th></tr>
</thead>
<tbody>
<tr>
<td>a</td>
<td><input type="number" value="1"></td>
</tr>
<tr>
<td>b</td>
<td><input type="number" value="2"></td>
</tr>
</tbody>
</table>
Probably you can do it without any library but with jQuery it's easier. Something like that should work (not tested):
// Here we will store the results
var result = {};
// Ask jQuery to find each row (TR tag) and call a function for each
$('tr').each(function(){
// Inside a jQuery each() "this" is the current element, the TR tag in this example
var row = $(this);
// We ask jQuery to find every TD inside the current row (the second parameter of a jQuery selector is the parent node for your search). We take the first one and then we take the content of the tag
var label = $("td", row).first().text();
// We ask for an "input" tag inside the current row and we read its "value" attribute
var value = $("input", row).attr("value");
// Store everything in result
result[label] = value;
});
I use the HTML code.
I have a table and I write in first tr td "A" and "B" in second tr td
I have these two rows
but I want to print "B" in first tr and "A" in second
!! But I don't want to change my th position!!
Is it possible with any script like js or Jquery or with any type js CDN....??
<table id='table1'>
<tr>
<th>name</th>
</tr>
<tr>
<td>A</td>
</tr>
<tr>
<td>B</td>
</tr>
</table>
Give this a try:
Your script
$(function(){
$("tbody").each(function(elem,index){
var arr = $.makeArray($("tr",this).detach());
arr.reverse();
$(this).append(arr);
});
});
The second way to do the same will be like this:
var tbody = $('table tbody');
tbody.html($('tr',tbody).get().reverse());
I hope this helps! Thanks!
You can swap the .textContent of the <td> children of the <tr> elements
const {rows:[{cells:[a]}, {cells:[b]}]} = table1;
[a.textContent, b.textContent] = [b.textContent, a.textContent];
<table id='table1'>
<tr>
<td>A</td>
</tr>
<tr>
<td>B</td>
</tr>
</table>
Since you can use reverse() with an array, you can use get() to convert this to an array first. If you have a dynamic number of rows you can use something like this:
$('tbody').each(function(){
var row = $(this).children('tr');
console.log(row)
$(this).html(row.get().reverse())
})
Use this below code:
$(function(){
$("tbody").each(function(elem,index){
var arr = $.makeArray($("tr",this).detach());
arr.reverse();
$(this).append(arr);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id='table1'>
<tbody>
<tr>
<td>A</td>
</tr>
<tr>
<td>B</td>
</tr>
<tr>
<td>C</td>
</tr>
</tbody>
</table>
You can loop through each row, starting at the bottom and add it to the bottom - this will reverse the rows.
This will mean you don't need to load all the rows into an array, but will mean additional DOM manipulation.
var tbl = $("#table1>tbody")
var l = tbl.find("tr").length;
for (var i=l; i>=0; --i)
{
tbl.find("tr").eq(i).appendTo(tbl);
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<table id='table1'><tbody>
<tr> <td>A</td> </tr>
<tr> <td>B</td> </tr>
<tr> <td>C</td> </tr>
<tr> <td>D</td> </tr>
<tr> <td>E</td> </tr>
</tbody></table>
Problem Solved
<script type="text/javascript">
var trCount = $('#table1 tr').length;
var $rows = [];
for (var i = 0; i < trCount; i++)
$rows.push($('#table1 tr:last-child').remove());
$("#table1 tbody").append($rows);
</script>
Thanks to all
You can do that with pure vanilla JS, you don't need jquery or any other library for that.
function reverseOrder(table) {
const rows = table.querySelector('tbody').children;
const swaptemp = rows[0].children[0].innerHTML;
rows[0].children[0].innerHTML = rows[1].children[0].innerHTML;
rows[1].children[0].innerHTML = swaptemp;
}
const tableToReserveOrder = document.getElementById('table1');
reverseOrder(tableToReserveOrder);
<table id='table1'>
<tr>
<td>A</td>
</tr>
<tr>
<td>B</td>
</tr>
</table>
This is just a demonstration for your use case, you can play around with value of n which is 0 for this case where n+1 is 1.
here i am trying to fetch values of a particular column for a selected row via jquery.In Following code i have two rows which do not have any id.I tried following way and getting both rows value for that column appending each other.how to get value for that row only using jquery only.I want to call test function on click of that element, dont want to use http://jsfiddle.net/SSS83/
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script type="text/javascript">
function test(){
var id = $(".use-address").closest("tr").find('td:eq(2)').text();
alert(id);
}
</script>
</head>
<body>
<table id="choose-address-table" class="ui-widget ui-widget-content">
<thead>
<tr class="ui-widget-header ">
<th>Name/Nr.</th>
<th>Street</th>
<th>Town</th>
<th>Postcode</th>
<th>Country</th>
<th>Options</th>
</tr>
</thead>
<tbody>
<tr>
<td class="nr"><span>50</span>
</td>
<td>Some Street 1</td>
<td>Glas</td>
<td>G0 0XX</td>
<td>United Kingdom</td>
<td>
<button type="button" class="use-address" onclick="test();">Use</button>
</td>
</tr>
<tr>
<td class="nr"><span>30</span>
</td>
<td>Some Street 2</td>
<td>Glasgow</td>
<td>G0 0XX</td>
<td>United Kingdom</td>
<td>
<button type="button" class="use-address" onclick="test();">Use</button>
</td>
</tr>
</tbody>
</table>
</body>
</html>
Not sure why you don't want to use jQuery Click event!!
Any way, if you want to stick with your test function, you need to tell the function from where it got called.
so change the
<button type="button" class="use-address" onclick="test();">Use</button>
to
<button type="button" class="use-address" onclick="test(this);">Use</button>
And update your test function as
function test(el) {
var id = $(el).closest("tr").find('td:eq(2)').text();
alert(id);
}
Enjoy!!
If you change your mind you can use the following code
jQuery('document').ready(function() {
jQuery('.use-address').on('click',function() {
var id = $(this).closest("tr").find('td:eq(2)').text();
alert(id);
})
});
Based on a click of a TD:
$('td').on('click',function() {
//get the column of the TD
var myCol = $(this).index();
//loop through the rows of this table, get the TD in the same column
$(this).parent('table').find('tr').each(function() {
var colValue = $(this).find('td').eq(myIndex).html()
}
})
"colValue" in the loop will grab the contents of the TD at that position.
How do I get the index of the <tr> in the table but only if it has <td>s and not <th>s
If I use a click event below it will alert the index of the with td and th but I only want <tr> with <td>s
thanks
$('td').click(function(){
var s = $(this).parents('table tr:has(td)').index();////// returns
alert(s);
});
<table>
<tr>
<th><th><th><th><th><th><th><th><th><th>
</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><td><td><td><td>
</tr>
<tr>
<td><td><td><td><td><td><td><td><td><td>
</tr>
</table>
Try this...
$('td').click(function(){
if ( ! $(this).closest('table').find('th').length ) {
var s = $(this).closest('tr').index();
alert(parseInt(s) + 1);
}
});
JS FIDDLE LINK
Your given code is working properly. see this jsfiddle.
I am new to HTML and JavaScript. I got a problem like this in HTML (This code below only visualize the problem for you to easy to reference.)
<tr>
<td>1</td>
<td>Harry</td>
</tr>
<tr>
<td>2</td>
<td>Simon</td>
</tr>
<td>3</td>
<td>Maria</td>
</tr>
</tr>
<td>4</td>
<td>Victory</td>
</tr>
This is a name list, however the problem is that sometime i need to add more name into this table and I HAVE TO ADD in front of Number 1, so meaning i have to re-write the number list, (EX: 1 1 2 3 4 --> 1 2 3 4 5). I feel that is not a good way.
NOTE: I don't want to change the list number decrease from top to bottom. And this is a HTML file so can't apply PHP
Anyone can help me to make the number to a variable like "i" and a function can help me to fill variable i increment from top to bottom automatically like
<tr>
<td>i</td>
<td>Harry</td>
</tr>
<tr>
<td>i</td>
<td>Simon</td>
</tr>
<td>i</td>
<td>Maria</td>
</tr>
</tr>
<td>i</td>
<td>Victory</td>
</tr>
Function Fill_i for example:
I think that JavaScript should be used in this case. Thanks for your help and suggestion on this problem.
Again: I am not allowed to use PHP or ASP and when I add a new name, I add it manually by HTML.
You can use a css counter - MDN
table {
counter-reset: section;
}
.count:before {
counter-increment: section;
content: counter(section);
}
<table>
<tr>
<td class="count"></td>
<td>Harry</td>
</tr>
<tr>
<td class="count"></td>
<td>Simon</td>
</tr>
<tr>
<td class="count"></td>
<td>Maria</td>
</tr>
<tr>
<td class="count"></td>
<td>Victory</td>
</tr>
</table>
FIDDLE
This should work for you:
<table>
<tr>
<td>Harry</td>
</tr>
<tr>
<td>Simon</td>
</tr>
<tr>
<td>Maria</td>
</tr>
<tr>
<td>Victory</td>
</tr>
</table>
<script>
var tables = document.getElementsByTagName('table');
var table = tables[tables.length - 1];
var rows = table.rows;
for(var i = 0, td; i < rows.length; i++){
td = document.createElement('td');
td.appendChild(document.createTextNode(i + 1));
rows[i].insertBefore(td, rows[i].firstChild);
}
</script>
The script should be placed immediately after your table. It goes through each row of your table and adds an extra cell to the beginning with the incrementing number inside that cell.
JSFiddle Demo
Edit: seems like the other solution posted would work do (was added while I typed this up).
You really should be using PHP to do something dynamic like this, which would become trivial with a single for loop.
However, if you insist on using HTML/Javascript (or perhaps this is a 'static page'...) then what you are asking should be possible.
You could add a class to each of the <td> elements you want to use, so:
<tr>
<td class='personid'>i</td>
<td>Harry</td>
</tr>
<tr>
<td class='personid'>i</td>
<td>Simon</td>
</tr>
<td class='personid'>i</td>
<td>Maria</td>
</tr>
</tr>
<td class='personid'>i</td>
<td>Victory</td>
</tr>
Then you would have a javascript function that does something like this:
var list = document.getElementsByClassName("personid");
for (var i = 1; i <= list.length; i++) {
list[i].innerHTML = i;
}
Are you sure you don't want an ordered list?
<ol>
<li>Fred</li>
<li>Barry</li>
</ol>
<script>
function addRow(index, name){
var tbody = document.getElementById("nameList");
var row = document.createElement("tr");
var data1 = document.createElement("td");
data1.appendChild(document.createTextNode(index));
var data2 = document.createElement("td");
data2.appendChild(document.createTextNode(name));
row.appendChild(data1);
row.appendChild(data2);
tbody.appendChild(row);
}
var name=new Array();
name[0]="Harry";
name[1]="Simon";
name[2]="Maria";
name[3]="Victory";
for(var i=0; i < name.length; i++) {
addRow(i,name[i]);
}
</script>
<html>
<body>
<table id="nameList">
</table>
</body>
</html>
I would say do this (im going to assume you are not going to load in jquery or anything fancy):
<html>
<head>
<script type="text/javascript>
function writeTable(){
// list of names
var myList = [ "name1", "name2", "etc", "etc"];
// your variable to write your output
var outputTable = "<table>";
//the div to write the output to
var outputDiv = document.getElementById("output");
//the loop that writes the table
for (var i=0; i<myList.length; i++){
outputTable += "</tr><td>"+i+"</td><td>"+myList[i]+"</td></tr>";
}
//close the table
outputTable += "</table>";
//write the table
outputDiv.innerHTML = outputTable;
}
</script>
</head>
<body onload=writeTable()>
<div id='output'></div>
</body>
</html>
hope this helps :)
Try this
$(document).ready(function() {
var addSerialNumber = function () {
$('table tr').each(function(index) {
$(this).find('td:nth-child(1)').html(index);
});
};
addSerialNumber();
});