Develop Reference

How to dynamically add <a> in a html table?

I have a table generated from an array. I'm looking to add a hyperlink to the entire first column of the <tbody> and only the first column.
I am able to add the <a> after the table is created, but then it doesn't actually contain the url within it, it simply appends to what already exists.
Specifically, how can I add a hyperlink to the first column of the
<tbody>?
Generally, as the table is being made, how can I specify different
things (anchors, classes, styles, etc.) for different columns?
http://jsfiddle.net/nateomardavis/n357gqo9/10/
$(function() {
google.script.run.withSuccessHandler(buildTable)
.table();
});
//TABLE MADE USING for
function buildTable(tableArray) {
var table = document.getElementById('table');
var tableBody = document.createElement('tbody');
var tbodyID = tableBody.setAttribute('id', 'tbody');
for (var i = 0; i < tableArray.length; ++i) {
var column = tableArray[i];
var colA = column[0];
var colB = column[1];
var colC = column[2];
var colD = column[3];
if (colA != "") {
var row = document.createElement('tr');
var getTbody = document.getElementById('tbody');
for (var j = 0; j < column.length; ++j) {
var cell = document.createElement('td');
cell.appendChild(document.createTextNode(column[j]));
row.appendChild(cell);
//NEXT TWO LINES DO NOT WORK
var firstCol = getTbody.rows[i].cells[0];
firstCol.setAttribute('class', 'TEST');
}
}
tableBody.appendChild(row);
}
table.appendChild(tableBody);
document.body.appendChild(table);
/* WORKS AFTER TABLE IS CREATED BUT CAN'T CAPUTRE INTERNAL LINK
var getTbody = document.getElementById('tbody');
for (var i = 0; i < getTbody.rows.length; i++) {
var firstCol = getTbody.rows[i].cells[0]; //first column
//firstCol.style.color = 'red';
//firstCol.setAttribute('class', 'TEST');
var link = document.createElement('a');
firstCol.appendChild(link);
}
*/
}

How to find out which row was clicked?

Hello i generate a Table with javascript and now i wont to find out which row and column the user has clicked?
Here are my function for the table:
function doNextSteps() {
removeAustriaFromCountries();
//insert table
var table = document.createElement("table");
table.setAttribute('id', 'matrixTable');
table.setAttribute('class', 'jbiTable');
// insert MATRIX row
var matrixRow = table.insertRow();
var cell = matrixRow.insertCell(); // left column for countries
cell.setAttribute('class', 'jbiMatrixCell');
cell.setAttribute('colSpan', departments.length + 1);
cell.appendChild(document.createTextNode("MATRIX"));
// insert departments row
var departmentsRow = table.insertRow();
var cell = departmentsRow.insertCell(); // left column for countries
cell.setAttribute('class', 'jbiBlankCell');
for (var i = 0; i < departments.length; i++) {
var cell = departmentsRow.insertCell();
cell.appendChild(document.createTextNode(departments[i].name));
cell.setAttribute('class', 'jbiDepartmentCell');
}
for (var i = 0; i < countries.length; i++) {
var countryRow = table.insertRow();
var cell = countryRow.insertCell(); // left country column
//cell.appendChild(document.createTextNode(countries[i].name));
var img = document.createElement('img');
img.src = "example.com + flags[i].name";
cell.appendChild(img);
cell.setAttribute('class', 'jbiCountryCell');
for (var j = 0; j < departments.length; j++) {
var cell = countryRow.insertCell();
var img = document.createElement('img');
img.src = "https://intranet.windkraft.at/OrganisationManual/Documents/Kreis.jpg";
img.onclick = function () {
window.location.href = "example.com" + pdfFiles[i].name;
};
cell.appendChild(img);
cell.setAttribute('class', 'jbiCircleCell');
}
}
$("#divTable").append(table);
}
The table gets generated and now i want to know in which header and in which column the user has clicked. With that information i want to make a new query to get files dynamically displayed in the Table. Any help would be great. And thanks for your Help.

To get the index of the row, you can use this code in your event listener function:
function onClick() {
var cell = this;
var row = cell.parentNode;
var cellIndex = Array.prototype.indexOf.call(row.children, cell);
var rowIndex = Array.prototype.indexOf.call(row.parentNode.children, row);
// do stuff with rowIndex, cellIndex
// rowIndex is the row number starting with row 0
// cellIndex is the column number starting with column 0
}

You can use parentNode.rowIndex & cellIndex to get the cell & rowIndex
document.getElementsByTagName('table')[0].addEventListener('click', function(e) {
console.log(e.target.parentNode.rowIndex,' ',e.target.cellIndex);
}, false);
Check this jsFiddle

Create a bookmarklet that can retrieve all max length of text box and then print the id and max length in a table

I want to create a bookmarklet by using javascript, which can retrieve max length of all text box in the page, and then print a table below the page with all id and max length indicated.
Here is my code, however it did not print anything.
javascript: (function() {
var body =document.getElementsByTagName('body')[0];
var tbl = document.createElement('table');
var tbdy = document.createElement('tbody');
var D = document,
i, f, j, e;
for (i = 0; f = D.forms[i]; ++i)
for (j = 0; e = f[j]; ++j)
if (e.type == "text") S(e);
function S(e) {
var l= document.getElementById(e.id);
var x = document.getElementById(e.maxlength);
var tr=document.createElement('tr');
var td1=document.createElement('td');
var td2=document.createElement('td');
td1.appendChild(document.createTextNode(l));
td2.appendChild(document.createTextNode(x));
tr.appendChild(td1);
tr.appendChild(td2);
tbdy.appendChild(tr);
}
tbl.appendChild(tbdy);
body.appendChild(tbl);
})

This can actually be done much simpler than you have it.
Working jsfiddle: https://jsfiddle.net/cecu3daf/
You want to grab all of the inputs and run a loop over them. From this you can dynamically create a table and append it to the end of the document.body
var inputs = document.getElementsByTagName("input"); //get all inputs
var appTable = document.createElement("table"); //create a table
var header = appTable.createTHead(); //create the thead for appending rows
for (var i=0; i<inputs.length; i++) { //run a loop over the input elements
var row = header.insertRow(0); //insert a row to the table
var cell = row.insertCell(0); //insert a cell into the row
cell.innerHTML = inputs[i].maxLength; //input data into the cell
var cell = row.insertCell(0);
cell.innerHTML = inputs[i].id;
}
document.body.appendChild(appTable); //append the table to the document
To make it a bookmark, simply place the javascript: before hand. There is no need to encase it in a function. You can if you'd like to.

Why tables's td node.appendChild doesn't work?

I have this JavaScript function to create a table with image cells:
function Draw(array) {
// get the reference for the body
var body = document.getElementsByTagName("body")[0];
document.clear();
// creates a <table> element and a <tbody> element
var tbl = document.createElement("table");
tbl.setAttribute("borderstyle", "1");
var tblBody = document.createElement("tbody");
// creating all cells
for (var j = 0; j < 4; j++) {
// creates a table row
var row = document.createElement("tr");
for (var i = 0; i < 4; i++) {
// Create a <td> element and a text node, make the text
// node the contents of the <td>, and put the <td> at
// the end of the table row
var cell = document.createElement("td");
var cellText = document.createElement(array[4 * j + i]);
cell.appendChild(cellText);
row.appendChild(cell);
}
// add the row to the end of the table body
tblBody.appendChild(row);
}
// put the <tbody> in the <table>
tbl.appendChild(tblBody);
// appends <table> into <body>
body.appendChild(tbl);
// sets the border attribute of tbl to 2;
tbl.setAttribute("border", "2");
}
but in
var cellText = document.createElement(array[4 * j + i]);
cell.appendChild(cellText);
row.appendChild(cell);
the cell.appendChild(cellText); doesn't work!
I don't know why and I don't know how to resolve it!
update
the a array is this:
var a = Array(16);
for (var i = 0; i < 16; i++) {
a[i] = '<img src="' + i + '.jpg" />';
}

Updated answer
Re your comment:
It just put a text. it means I see the text of <img src ... not the image!
It would have been useful if you'd told us that array[4 * j + i] contained markup (included an example of it in the question, for instance).
If the array contains markup, you don't want to create a new node of any kind. Instead, assign to innerHTML of the table cell:
cell.innerHTML = array[4 * j + i];
row.appendChild(cell);
When you assign to innerHTML, the browser parses the markup and adds the relevant content to the element.
Original answer before the comment below and before array's content was given:
To create a text node, you use createTextNode, not createElement. So:
// Change here ---------v
var cellText = document.createTextNode(array[4 * j + i]);
cell.appendChild(cellText);
row.appendChild(cell);
Suppose array[4 * j + i] was "Hi there". Your document.createElement(array[4 * j + i]) call was asking the DOM to create an element with the tag name Hi there, exactly the way that document.createElement('div') asks it to create an element with the tag name div.

For the sake of completeness, here's some other alternatives to the accepted solution, if you'd prefer to use appendChild() instead of innerHTML property.
You could've also done
var a = Array(16);
for (var i = 0; i < 16; i++) {
a[i] = document.createElement('img');
a[i].setAttribute('src', i + '.jpg');
}
and it would've worked too. Also, you could've created an Image object:
var a = Array(16);
for (var i = 0; i < 16; i++) {
a[i] = new Image();
a[i].src = i + '.jpg';
}
and appendChild should've still worked.
Another usable, but completely different approach would've been to use a javascript framework, such as jQuery, and its functionalities. That would require rewriting the code you have however.

Dynamically building table using Javascript

I need to add rows dynamically to a table on a button click event using JavaScript. In addition, the table cells need to contain textboxes.
How can I do this?

Here's a sample code taken from this source. Suggest you read more about DOM, specifically about DOM tables for this question.
function start() {
// get the reference for the body
var body = document.getElementsByTagName("body")[0];
// creates a <table> element and a <tbody> element
var tbl = document.createElement("table");
var tblBody = document.createElement("tbody");
// creating all cells
for (var j = 0; j < 2; j++) {
// creates a table row
var row = document.createElement("tr");
for (var i = 0; i < 2; i++) {
// Create a <td> element and a text node, make the text
// node the contents of the <td>, and put the <td> at
// the end of the table row
var cell = document.createElement("td");
var cellText = document.createTextNode("cell is row "+j+", column "+i);
cell.appendChild(cellText);
row.appendChild(cell);
}
// add the row to the end of the table body
tblBody.appendChild(row);
}
// put the <tbody> in the <table>
tbl.appendChild(tblBody);
// appends <table> into <body>
body.appendChild(tbl);
// sets the border attribute of tbl to 2;
tbl.setAttribute("border", "2");
}