function CreateWeakHeader(name) {
var tr = document.createElement('tr');
var td = document.createElement('td');
td.classList.add("cal-usersheader");
td.style.color = "#000";
td.style.backgroundColor = "#7FFF00";
td.style.padding = "0px";
td.appendChild(document.createTextNode(name));
tr.appendChild(td);
var thh = document.createElement('td');
thh.colSpan = "31";
thh.style.color = "#FFFFFF";
thh.style.backgroundColor = "#7FFF00";
tr.appendChild(thh);
return tr;
}
function htmlTable(data, columns) {
var header = document.createElement("div");
header.classList.add("table-responsive");
var header2 = document.createElement("div");
header2.id = "calplaceholder";
header.appendChild(header2);
var header3 = document.createElement("div");
header3.classList.add("cal-sectionDiv");
header2.appendChild(header3);
if ((!columns) || columns.length == 0) {
columns = Object.keys(data[0]);
}
var tbe = document.createElement('table');
tbe.classList.add("table", "table-striped", "table-bordered");
var thead = document.createElement('thead');
thead.classList.add("cal-thead");
tbe.appendChild(thead);
var tre = document.createElement('tr');
for (var i = 0; i < columns.length; i++) {
var the = document.createElement('th');
the.classList.add("cal-toprow");
the.textContent = columns[i];
tre.appendChild(the);
}
thead.appendChild(tre);
var tbody = document.createElement('tbody');
tbody.classList.add("cal-tbody");
tbe.appendChild(tbody);
var week = 0;
//tbody.appendChild(CreateWeakHeader("Week " + week));
var tre = document.createElement('tr');
for (var j = 0; j < data.length; j++) {
if (j % 7 == 0) {
week++;
tbody.appendChild(CreateWeakHeader("Week " + week));
}
var thead = document.createElement('td');
thead.classList.add("ui-droppable");
thead.appendChild(data[j]);
tre.appendChild(thead);
tbody.appendChild(tre);
}
header3.appendChild(tbe);
document.body.appendChild(header);
}
$("#tb").click(function() {
var header = document.createElement("div");
header.innerHTML = "test";
var d = [header, header, header, header, header, header, header, header];
htmlTable(d, days);
});
var days = ['Maandag', 'Dinsdag', 'Woensdag', 'Donderdag', 'Vrijdag', 'Zaterdag', 'Zondag'];
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.0/dist/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.0/dist/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button type="button" id="tb">CreateTable</button>
I'm trying to order the data that I get from my server to match the columns of my table.
My table columns are days from Monday to Sunday. When my data has more than 7items it needs to separate with another td. The td shows me week 1 and when my data has more than 7 items it needs to separate again that shows week 2 etc.
Update
Im now using a snipped verdion of my code.
Hope someone can help me out with this.
Thank you
There's a few things going on in the code that are problematic.
An attempt to add the table cells to the row, and the row to the table, was made on each iteration of the for loop. That would have produced a lot of rows with single cells had it worked.
It didn't work because there was only ever a single instance of tre, the row variable. So that meant the line tbody.appendChild(tre); did nothing, since appendChild won't append an element that already has a parent element.
Because your data was an array of references to HTMLElements with parents, appending them using appendChild did nothing for the same reason.
I've amended the code below to take care of all of these situations.
Firstly, the code will append a clone of the data to the cell if it's an HTMLElement. I expect in your real code you won't need this, but for this example, why not? It then appends the cell to the row and continues to the next data element.
Secondly, when the data iterator is at 7, before it appends the "Week N" header, it appends a clone of the row, if it has cells on it.
Finally, after appending the clone of the row, the code will reset the row variable to a new instance of a tr element, with no cells.
I also made some variable name and formatting changes to your code just so I could more easily work with it.
function CreateWeakHeader(name) {
var tr = document.createElement('tr');
var td = document.createElement('td');
td.classList.add("cal-usersheader");
td.style.color = "#000";
td.style.backgroundColor = "#7FFF00";
td.style.padding = "0px";
td.appendChild(document.createTextNode(name));
tr.appendChild(td);
var thh = document.createElement('td');
thh.colSpan = "6"; // "31"; Why 31? A week has 7 days...
thh.style.color = "#FFFFFF";
thh.style.backgroundColor = "#7FFF00";
tr.appendChild(thh);
return tr;
}
function htmlTable(data, columns) {
var header = document.createElement("div");
header.classList.add("table-responsive");
var header2 = document.createElement("div");
header2.id = "calplaceholder";
header.appendChild(header2);
var header3 = document.createElement("div");
header3.classList.add("cal-sectionDiv");
header2.appendChild(header3);
if ((!columns) || columns.length == 0) {
columns = Object.keys(data[0]);
}
var tbe = document.createElement('table');
tbe.classList.add("table", "table-striped", "table-bordered");
var thead = document.createElement('thead');
thead.classList.add("cal-thead");
tbe.appendChild(thead);
var tre = document.createElement('tr');
for (var i = 0; i < columns.length; i++) {
var the = document.createElement('th');
the.classList.add("cal-toprow");
the.textContent = columns[i];
tre.appendChild(the);
}
thead.appendChild(tre);
var tbody = document.createElement('tbody');
tbody.classList.add("cal-tbody");
tbe.appendChild(tbody);
var week = 0;
//tbody.appendChild(CreateWeakHeader("Week " + week));
var tre = document.createElement('tr');
for (var j = 0; j < data.length; j++) {
if (j % 7 == 0) {
week++;
/* Major changes start here */
// if the row has cells
if (tre.querySelectorAll('td').length) {
// clone and append to tbody
tbody.appendChild(tre.cloneNode(true));
// reset table row variable
tre = document.createElement('tr');
}
// then append the Week header
tbody.appendChild(CreateWeakHeader("Week " + week));
}
var td = document.createElement('td');
td.classList.add("ui-droppable");
// Set the value of the cell to a clone of the data, if it's an HTMLElement
// Otherwise, make it a text node.
var value = data[j] instanceof HTMLElement ?
data[j].cloneNode(true) :
document.createTextNode(data[j]);
td.appendChild(value);
tre.appendChild(td);
}
// If the number of data elements is not evenly divisible by 7,
// the remainder will be on the row variable, but not appended
// to the tbody, so do that.
if (tre.querySelectorAll('td').length) {
tbody.appendChild(tre.cloneNode(true));
}
header3.appendChild(tbe);
document.body.appendChild(header);
}
$("#tb").click(function() {
var header = document.createElement("div");
header.innerHTML = "test";
var d = [header, header, header, header, header, header, header, header];
htmlTable(d, days);
});
var days = ['Maandag', 'Dinsdag', 'Woensdag', 'Donderdag', 'Vrijdag', 'Zaterdag', 'Zondag'];
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.0/dist/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.0/dist/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<button type="button" id="tb">CreateTable</button>
I have a dynamically created table which is generated through a JS addRow function. I would like to loop through this table and check if the cell has a select element in it. If it does then I would like to push the value of the selected option to a dictionary called ingredient_dict.
This is what I have so far:
var table = document.getElementById('selected_ingredients');
var rowCount = table.rows.length;
//table width by counting headers minus the last cell which has a delete button
var cellsCount = table.rows[0].cells.length -1 ;
//loop through all rows (r) in table
for (var r = 1; r < rowCount; r++) {
//initiate dictionary for this ingredient
var ingredient_dict = {};
//loop through each cell (c) in row
for (var c = 0; c < cellsCount; c++) {
var $cell = table.rows[r].cells[c];
if (**CHECK IF CELL HAS A SELECT ELEMENT**) {
$ingredient_dict["UOM"] = $cell.options[$cell.selectedIndex].value
} else if (**CHECK IF CELL HAS INPUT ELEMENT**) {
$ingredient_dict["qty"] = $cell.value
} else {
$ingredient_dict["name"] = $cell.value
}
}
}
I'm not sure if it matters but this is the code in my addRow function to dynamically create the select element:
// ingredient unit of measurement drop down
var cell3= row.insertCell(2);
var unit_of_measure = document.createElement("select");
unit_of_measure.name = "unit_of_measure_select";
cell3.appendChild(unit_of_measure);
I'm pretty new to javascript so I apologize if my code is messy or if this is an obvious question!
var doesCellHaveElement = (cell,element) => {
return cell.innerHTML.toLowercase().indexOf(`<${element}`) >= 0;
};
element would be some name of tag in lowercase. For example:
doesCellHaveElement(cell, "select");
doesCellHaveElement(cell, "input");
I am new to Javascript/jQuery and I need some help adding a header to my table. I am getting my data from a JSON array. Here is the code I currently have.
function jsonTable (ChartNum, divclass) {
"use strict";
var output = JSON.parse(document.getElementById(ChartNum).innerHTML);
var table = $('<table></table>');
for (var i=0; i < output.length; i++) {
var tr = $('<tr></tr>');
for (var key in output[i]) {
var td = $('<td></td>');
td.attr('class', key);
td.text(output[i][key]);
tr.append(td);
}
table.append(tr);
}
$(divclass).append(table);
}
jsonTable( 'pdfChart1', '#pdfTable1');
Any help would be really appreciated. Thanks,
Try this:
function jsonTable (ChartNum, divclass) {"use strict";
var output = JSON.parse(document.getElementById(ChartNum).innerHTML);
var table = $('<table></table>');
var trHeader = $('var table = $('<tr><th>Column1</th><th>Column2</th> <th>ColumnsN</th></tr>');
table.append(trHeader);
for (var i=0; i < output.length; i++) {
var tr = $('<tr></tr>');
for (var key in output[i]) {
var td = $('<td></td>');
td.attr('class', key);
td.text(output[i][key]);
tr.append(td);
}
table.append(tr);
}
$(divclass).append(table);
}
jsonTable( 'pdfChart1', '#pdfTable1');
I added variable trHeader where you can add the name of your columns, of course this will only work if your columns are always the same. Or you can get another json with the names of columns and iterate over it to build trHeader in a similar way you build the tds.
Below is the JavaScript functionalities addRow() I have used to add the rows dynamically and now am trying to highlight the selected row with red color using rowhighlight() function.
/Function to addRows dynamically to the HTML table/
function addRow(msg)
{
var table = document.getElementById("NotesFinancialSummary");
var finSumArr1 = msg.split("^");
var length = finSumArr1.length-1;
alert("length"+ length);
for(var i=1; i<finSumArr1.length; i++)
{
var rowValues1 = finSumArr1[i].split("|");
tb=document.createElement("tbody");
var tbody=document.createElement("tbody");
table.appendChild(tbody);
var tr=document.createElement("tr");
tbody.appendChild(tr);
for(var k=0;k<=10;k++)//adding data to table dynamically
{
var td=document.createElement("td");
tr.appendChild(td);
var element1=rowValues1[k];
td.innerHTML =element1;
tr.onclick=function(){
rowhighlight(this);//calling the rowhighlight function
}
}
}
}
function rowhighlight(x)
{
var index = x.rowIndex;
document.getElementById("NotesFinancialSummary").rows [index].style.backgroundColor = "red";
}
One approach is to first loop through the other rows and remove the styling (really should be a class) then apply the styling (again, class) to the selected row.
Here's one way of doing it:
function rowHighlight() {
var selectedRows = document.getElementsByClassName('selected');
for (var n = 0; n < selectedRows.length; n++) {
selectedRows[n].className = '';
}
this.className = 'selected'
}
And here's a working example of it, though very simple: fiddle time!
I have the following function to append rows and cells to an empty table:
function createTable(size) {
var table = document.getElementById("gameTable");
for (var i=0; i<size; i++) {
var tr = document.createElement("tr");
for (var j=0; j<size; j++) {
var td = document.createElement("td");
tr.appendChild(td);
}
table.appendChild(tr);
tr.rowIndex = i;
}
}
So far so good.
My problem is that later, when I tried to reach specific cells inside the table:
var x = target.parentNode.rowIndex;
var y = target.cellIndex;
table.rows[x].cells[y].innerHTML = 'blah'
target is the specific TD that was clicked.
the rows[x] index is always -1. Every time I try the line above I get an error: "cannot read property 'cells' of undefined"
I even tried manually setting the rowIndex of each Row to what it should be (inside the function), but to no avail.
The cellIndex comes out fine, but the rowIndex is -1 and each and every one of the newly created table rows.
What can I do to correct this?
This can be solved by appending the <tr> elements into a <tbody>.
function createTable(size) {
var table = document.getElementById("gameTable");
var tb = document.createElement("tbody");
for (var i=0; i<size; i++) {
var tr = document.createElement("tr");
for (var j=0; j<size; j++) {
var td = document.createElement("td");
tr.appendChild(td);
}
tb.appendChild(tr);
}
table.appendChild(tb);
}