How to fix undefined array - javascript

I am fairly new to javascript so any assistance is appreciated. I am trying to collect 2 related inputs from a user and display the array object as a table. When the inputs are submitted however, the array is displaying as undefined. I am not sure where I am going wrong. Any suggestions?
I have tried different methods of collecting the inputs off the form but none seem to work.
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Example:</title>
<script type="text/javascript">
var flights = [];
function add(ele) {
flights.push(number, miles);
render();
document.getElementById("number").value = "";
document.getElementById("miles").value = "";
}
function render() {
document.getElementById("mydiv").innerHTML = "";
thelisthtml = "";
for(i = 0; i< flights.length; i++)
thelisthtml += "<div class='card' id="+ i +"><div class='card-body'>";
thelisthtml += "Flight " + (i+1) + " : " + flights[i] + " " + "<button type='submit' onclick = 'clearToDo(this)' id="+ i +">Remove From List</button>";
document.getElementById("mydiv").innerHTML = thelisthtml;
}
function calculateStatus(){
var totalMiles = Number(document.getElementById("totalMiles").value);
if (miles < 9999){
tr = document.getElementById("table").rows[1];
tr.style.backgroundColor = "yellow";
}
if (miles >= 10000 && miles <= 24999){
tr = document.getElementById("table").rows[2];
tr.style.backgroundColor = "yellow";
}
if (miles >= 25000){
tr = document.getElementById("table").rows[3];
tr.style.backgroundColor = "yellow";
}
}
function refreshPage() {
window.location.reload();
}
</script>
</head>
<body>
<br>
<table id="table" border ="1">
<tr>
<th>Medallion Status</th>
<th>Level</th>
</tr>
<tr>
<td>Bronze</td>
<td> < 10000 miles</td>
</tr>
<tr>
<td>Silver</td>
<td> < 25000 miles</td>
</tr>
<tr>
<td>Gold</td>
<td> > 25000</td>
</tr>
</table>
<h1><strong>Traveler Information </strong></h1><br> <br>
Flight Number: <input type="text" id="number" name="number" value="" />
<br> <br>
Miles Flown: <input type="text" id="miles" name="miles" value=""/> <br>
<br>
<input type="submit" value="Add Flight" id="go" onclick="add(this)"/>
<p>----------------------------</p>
<table>
<thead>
<tr>
<th>Flight</th>
<th>Miles</th>
</tr>
<thead>
<tbody>
<tr class="col-md-6" id="mydiv"></tr>
</tbody>
</table>
<input type="reset" id="reset" name="Reset" value="Reset"
onclick="refreshPage()" /> <br> <br> <br>
<br> <br>
</body>
</html>
the expected result is the array will display in a table as the user enters information. the actual result is the array is undefined.

There are several issues but the answer to your question about how to fix the flights array containing undefined is to change
function add(ele) {
flights.push(number, miles);
render();
document.getElementById("number").value = "";
document.getElementById("miles").value = "";
}
to
function add() {
const numberElem = document.getElementById("number");
const milesElem = document.getElementById("miles");
flights.push(numberElem.value, milesElem.value);
render();
numberElem.value = "";
milesElem.value = "";
}
In your original add function you are pushing number and miles onto the flights array but number and miles are undefined variables so you are pushing undefined and undefined onto the flights array.
To also fix the other issues I'd suggest replacing your add and render functions with the follow
function add() {
const numberElem = document.getElementById("number");
const milesElem = document.getElementById("miles");
flights.push({
number: numberElem.value,
miles: milesElem.value});
render();
numberElem.value = "";
milesElem.value = "";
}
function render() {
const tbody = document.querySelector('#outputTable tbody');
tbody.innerHTML = flights.map((flight, i) => {
return ''
+ '<tr>'
+ '<td>'
+ flight.number
+ '</td>'
+ '<td>'
+ flight.miles
+ '</td>'
+ '<td>'
+ `<button type='button' onclick="clearToDo(${i})">`
+ 'Remove From List'
+ '</button>'
+ '</td>'
+ '</tr>';
}).join('');
}
and changing your second <table> to <table id="outputTable">.

Related

HTML/JS output table not showing horizontal borders

I can't figure out why my horizontal borders are not showing up with my output section. See code and screenshot below:
I would like to have horizontal borders and if possible keep the date fields from
wrapping into the next row below itself.
I would like to have horizontal borders and if possible keep the date fields from wrapping into the next row below itself.
<td align="center"><input type="button" value="Submit" name="submit" id="submit" onClick="display()" /></button></td>
</tr>
</table>
<table width="400px" align="center" colspan="40" table border="5">
<tr style="background-color:#8FBC8F;">
<td align="center"><b>Name</b></td>
<td align="center"><b>Company</b></td>
<td align="center"><b>Time In</b></td>
<td align="center"><b>Time Out</b></td>
<td align="center"><b>Description of Work</b></td>
</tr>
<tr>
<td align="center"><div id="displayarea"></div></td>
<td align="center"><div id="displayarea1"></div></td>
<td align="center"><div id="displayarea2"></div></td>
<td align="center"><div id="displayarea3"></div></td>
<td align="center"><div id="displayarea4"></div></td>
</tr>
I would like to have horizontal borders and if possible keep the date fields from wrapping into the next row below itself.
function getValue() {
var Items = "";
var td1 = document.getElementById("displayarea").innerHTML.split("<br>");
var td2 = document.getElementById("displayarea1").innerHTML.split("<br>");
var td3 = document.getElementById("displayarea2").innerHTML.split("<br>");
var td4 = document.getElementById("displayarea3").innerHTML.split("<br>");
var td5 = document.getElementById("displayarea4").innerHTML.split("<br>");
for (var i = 0; i < td1.length; i++) {
if (td1[i])
Items += td1[i] + " ,";
if (td2[i])
Items += td2[i] + " ,";
if (td2[i])
Items += td2[i] + " ,";
if (td3[i])
Items += td3[i] + " ,";
if (td4[i])
Items += td4[i] + " ";
Items += "\n";
}
console.log(Items);
return Items;
}
function display() {
document.getElementById("displayarea").innerHTML += document.getElementById("fname").value + "<br />";
document.getElementById("fname").value = "";
document.getElementById("displayarea1").innerHTML += document.getElementById("lname").value + "<br />";
document.getElementById("lname").value = "";
document.getElementById("displayarea2").innerHTML += document.getElementById("sname").value + "<br />";
document.getElementById("sname").value = "";
document.getElementById("displayarea3").innerHTML += document.getElementById("pname").value + "<br />";
document.getElementById("pname").value = "";
document.getElementById("displayarea4").innerHTML += document.getElementById("jname").value + "<br />";
document.getElementById("jname").value = "";
}
I highly suggest you start separating your data from your presentation of that data.
So, split your display function into two: createRow and renderRows. Likewise, getValues can just be getRows.
Note that this required a different way of doing things in your code, so I also refactored your HTML and CSS to bring it more in line with modern methods.
function getRows(data) {
return data.map(datum => Object.values(datum).join(',')).join('\n');
}
function createRow(data) {
const datum = {
fname: document.getElementById("fname").value,
lname: document.getElementById("lname").value,
sname: new Date(document.getElementById("sname").valueAsNumber).toLocaleString(),
pname: new Date(document.getElementById("pname").valueAsNumber).toLocaleString(),
jname: document.getElementById("jname").value
};
data.push(datum);
document.getElementById("dataForm").reset();
renderRows(data);
}
function renderRows(data) {
const body = document.getElementById("renderedData");
body.innerHTML = "";
for (let datum of data) {
let tr = document.createElement('tr');
let tdFName = document.createElement('td');
tdFName.appendChild(document.createTextNode(datum.fname));
tr.appendChild(tdFName);
let tdLName = document.createElement('td');
tdLName.appendChild(document.createTextNode(datum.lname));
tr.appendChild(tdLName);
let tdSName = document.createElement('td');
tdSName.appendChild(document.createTextNode(datum.sname));
tr.appendChild(tdSName);
let tdPName = document.createElement('td');
tdPName.appendChild(document.createTextNode(datum.pname));
tr.appendChild(tdPName);
let tdJName = document.createElement('td');
tdJName.appendChild(document.createTextNode(datum.jname));
tr.appendChild(tdJName);
body.appendChild(tr);
}
}
window.addEventListener('load', () => {
const data = [];
document.getElementById('add').addEventListener('click', function(e) {
createRow(data);
});
document.getElementById('getData').addEventListener('click', function(e) {
console.log(getRows(data));
});
});
form {
width: max-content;
margin: 0 auto 1rem;
}
.control-group {
display: flex;
justify-content: space-between;
}
fieldset {
display: flex;
flex-flow: column nowrap;
}
fieldset button {
align-self: flex-end;
}
<form id="dataForm">
<fieldset>
<legend>Enter Data</legend>
<div class="control-group">
<label for="fname">Name:</label>
<input id="fname" type="text">
</div>
<div class="control-group">
<label for="lname">Company:</label>
<input id="lname" type="text">
</div>
<div class="control-group">
<label for="sname">Time In:</label>
<input id="sname" type="datetime-local">
</div>
<div class="control-group">
<label for="pname">Time Out:</label>
<input id="pname" type="datetime-local">
</div>
<div class="control-group">
<label for="jname">Description of Work:</label>
<textarea id="jname"></textarea>
</div>
<button type="button" id="add">Add</button>
</fieldset>
</form>
<table width="400px" align="center" colspan="40" table border="5">
<thead>
<tr style="background-color:#8FBC8F;" id='header'>
<td align="center"><b>Name</b></td>
<td align="center"><b>Company</b></td>
<td align="center"><b>Time In</b></td>
<td align="center"><b>Time Out</b></td>
<td align="center"><b>Description of Work</b></td>
</tr>
</thead>
<tbody id="renderedData">
</tbody>
</table>
<button type="button" id="getData">Get Data</button>
To get borders for all cells, add this at the top of your html code (inside the head):
<style>
table {
border-collapse: collapse;
}
td {
border: 1px solid #555;
}
</style>
Adjust the border thickness, style and color as you like (in the border setting of td)
Here's an easy way to add a row with each addition using the element - available in all good browsers (not so fast Internet Explorer, I wasn't talking to you)
I've also changed how to read the values
note, using class instead of id in the cells in the rows - to make it easy to get them all with minimal change to your code
Although, personally I'd get the row data data differently (shown in alternativeGetValues)
function getValue() {
var Items = "";
var td1 = [...document.querySelectorAll(".displayarea")].map(e => e.innerHTML);
var td2 = [...document.querySelectorAll(".displayarea1")].map(e => e.innerHTML);
var td3 = [...document.querySelectorAll(".displayarea2")].map(e => e.innerHTML);
var td4 = [...document.querySelectorAll(".displayarea3")].map(e => e.innerHTML);
var td5 = [...document.querySelectorAll(".displayarea4")].map(e => e.innerHTML);
for (var i = 0; i < td1.length; i++) {
if (td1[i])
Items += td1[i] + " ,";
if (td2[i])
Items += td2[i] + " ,";
if (td3[i])
Items += td3[i] + " ,";
if (td4[i])
Items += td4[i] + " ,";
if (td5[i])
Items += td5[i] + " ";
Items += "\n";
}
console.log(Items);
return Items;
}
function display() {
const template = document.getElementById("row");
const clone = template.content.cloneNode(true);
const additem = (dest, src) => {
const s = document.querySelector(src);
clone.querySelector(dest).innerHTML = s.value;
s.value = "";
};
additem(".displayarea", "#fname");
additem(".displayarea1", "#lname");
additem(".displayarea2", "#sname");
additem(".displayarea3", "#pname");
additem(".displayarea4", "#jname");
template.insertAdjacentElement('beforebegin', clone.firstElementChild);
}
// IMHO this is better
function alternateGetValue() {
const Items = [...document.querySelectorAll('.data')]
.map(row => [...row.querySelectorAll('td>div')]
.map(d => d.textContent).join(',')
).join('\n');
console.log(Items);
return Items;
}
.wide {
min-width:12em;
}
F: <input id="fname"> <br>
L: <input id="lname"> <br>
S: <input id="sname"> <br>
P: <input id="pname"> <br>
J: <input id="jname"> <br>
<input type="button" value="add" onclick="display()"/>
<input type="button" value="show" onclick="getValue()"/>
<input type="button" value="Better" onclick="alternateGetValue()"/>
<table width="400px" align="center" colspan="40" table border="5">
<thead>
<tr style="background-color:#8FBC8F;" id='header'>
<td align="center"><b>Name</b></td>
<td align="center"><b>Company</b></td>
<td align="center" class="wide"><b>Time In</b></td>
<td align="center" class="wide"><b>Time Out</b></td>
<td align="center"><b>Description of Work</b></td>
</tr>
</thead>
<tbody>
<template id="row">
<tr style="background-color:#8F8FBC;" class="data">
<td align="center"><div class="displayarea"></div></td>
<td align="center"><div class="displayarea1"></div></td>
<td align="center"><div class="displayarea2"></div></td>
<td align="center"><div class="displayarea3"></div></td>
<td align="center"><div class="displayarea4"></div></td>
</tr>
</template>
</tbody>
</table>

append a row on a given "id",but its not appending

I am appending a row on a given "id" after entering the input field but it's not appending.
function myfunction() {
var obj = "<tr><td>" + document.getElementById("name").value + "</td><td>" + document.getElementById("num").value + "</td><td>" + document.getElementById("address").value + "</td></tr>";
document.getElementById("table").innerHTML = obj;
}
<table>
<tr>
<td>Name: <input type="text" id="name"></td>
<td>Age:<input type="number" id="num"></td>
<td>Address:<input type="text" id="address"></td>
<td><input type="button" onclick="myfunction()" value="click on me"></td>
</tr>
<tbody id="table">
</tbody>
</table>
EDIT : you have several typo:
You write "innnnerHtml" (3n) instead of "innerHtml"
By writing innerHtml = obj you replace all html inside the selected div (the table in your case) you must use "+="
You use innerHtmlproperty instead of appendfunction.
function myfunction(){
var obj = "<tr><td>" + document.getElementById("name").value + "</td><td>" + document.getElementById("num").value + "</td><td>" + document.getElementById("address").value + "</td></tr>";
document.getElementById("table").innerHTML += obj;
}
// an other way to do it
function myfunction2() {
var line = document.createElement("tr");
var td1 = document.createElement("td");
td1.append(document.getElementById("name").value);
var td2 = document.createElement("td");
td2.append(document.getElementById("num").value);
var td3 = document.createElement("td");
td3.append(document.getElementById("address").value);
line.append(td1);
line.append(td2);
line.append(td3);
document.getElementById("table").append(line)
}
<table>
<tr>
<td>Name: <input type="text" id="name"></td>
<td>Age:<input type="number" id="num"></td>
<td>Address:<input type="text" id="address"></td>
<td><input type="button" onclick="myfunction()" value="click on me"></td>
<td><input type="button" onclick="myfunction2()" value="other way"></td>
</tr>
<tbody id="table">
</tbody>
</table>
It's better to call appendChild instead of innerHTML.
Using appendChild adds a new DOM element to the end of the parent node, while innerHTML takes the existing DOM content of the parent node, work with it as string, and overwrite the existing elements of the parent node with DOM generated elements from that string.
But, in Javascript we have a couple of functions like insertRow that helps you even more. See the example:
function myfunction() {
var name = document.getElementById("name").value,
num = document.getElementById("num").value,
address = document.getElementById("address").value;
var tbody = document.getElementById("table");
addRow(tbody, name, num, address);
}
function addRow(tbody, name, num, address){
var row = tbody.insertRow();
addCell(row, name, 0);
addCell(row, num, 1);
addCell(row, address, 2);
}
function addCell(row, cellText, index){
var cell = row.insertCell(index);
cell.appendChild(document.createTextNode(cellText));
}
<table>
<tr>
<td>Name: <input type="text" id="name"></td>
<td>Age:<input type="number" id="num"></td>
<td>Address:<input type="text" id="address"></td>
<td><input type="button" onclick="myfunction()" value="click on me"></td>
</tr>
<tbody id="table">
</tbody>
</table>
try this code
html code
<table id="table">
<tr>
<td>Name: <input type="text" id="name"></td>
<td>Age:<input type="number" id="num"></td>
<td>Address:<input type="text" id="address"></td>
<td><input type="button" onclick="myfunction()" value="click on me"></td>
</tr>
<tbody >
</tbody>
</table>
javascript function
function myfunction() {
var obj = "<tr><td>Name:" + document.getElementById("name").value + "</td><td>Age: " + document.getElementById("num").value + "</td><td>Address:" + document.getElementById("address").value + "</td></tr>";
$('#table tbody').append(obj);
// document.getElementById("table").innnerHTML = obj;
}
Try this code . It will helps you.
function myfunction() {
var obj = "<tr><td>" + document.getElementById("name").value + "</td><td>" +
document.getElementById("num").value + "</td><td>" +
document.getElementById("address").value + "</td></tr>";
table.innerHTML = obj;
}
Use this and watch out for the following:
Your table structure.
Typo in innerHTML
Your script was meant to overwrite not append.
function myfunction() {
var obj = "<tr><td>" + document.getElementById("name").value + "</td><td>" + document.getElementById("num").value + "</td><td>" + document.getElementById("address").value + "</td></tr>";
document.getElementById("table").innerHTML += obj;
console.log(obj);
}
<table>
<tbody id="table">
<tr>
<td>Name: <input type="text" id="name"></td>
<td>Age:<input type="number" id="num"></td>
<td>Address:<input type="text" id="address"></td>
<td><input type="button" onclick="myfunction()" value="click on me"></td>
</tr>
</tbody>
</table>

HTML table with editable fields accessed in javascript.

I am trying to build a table that will allow users to change the value of a cell(s) and then "submit" that data
to a JavaScript (only please) method that turns the tables data into a json dataset.
I started by trying to updated the value of just one field. QTY in this case. I am able to loop over the table and get the static values, but I am not able to catch the user input value.
question: What is a JavaScript only (if possible) way to capture user change(able) values from a table?
function updateQTY() {
//getData from table
//gets table
var lines = "";
var oTable = document.getElementById('items');
//gets rows of table
var rowLength = oTable.rows.length;
var line = "";
//loops through rows, skips firts row/header
for (i = 1; i < rowLength; i++) {
//gets cells of current row
var oCells = oTable.rows.item(i).cells;
var qty = oCells.item(2).innerHTML;
//alert("qty: " + wty);
qty = qty.substr(oCells.item(2).innerHTML.indexOf('value=') + 7);
qty = qty.substr(0, qty.indexOf('" class='));
//alert(qty);
line = line +
'{ "item": "' + oCells.item(0).innerHTML + '",' +
' "discription": "' + oCells.item(1).innerHTML + '",' +
' "qty": "' + qty + '"},'
}
//alert(line);
var jsonData = JSON.parse('[' + line + '{"quickwayto":"dealwith,leftbyloop"}]');
alert("lines: " + JSON.stringify(jsonData));
}
<form action='#'>
<table class='mdl-data-table mdl-js-data-table' id='items'>
<thead>
<tr>
<th>item</th>
<th>discription</th>
<th>QTY</th>
</tr>
</thead>
<tbody>
<tr>
<td class='mdl-data-table__cell--non-numeric'> widget_1 </td>
<td class='mdl-data-table__cell--non-numeric'>it's fun</td>
<td>
<div class='mdl-textfield mdl-js-textfield'><input type='text' name='qty1' id='value1' value='5' class='mdl-textfield__input'></div>
</td>
</tr>
<tr>
<td class='mdl-data-table__cell--non-numeric'> widget_2 </td>
<td class='mdl-data-table__cell--non-numeric'>it's super fun</td>
<td>
<div class='mdl-textfield mdl-js-textfield'><input type='text' name='qty2' id='value2' value='5' class='mdl-textfield__input'></div>
</td>
</tr>
</tbody>
</table>
<div>
<input type='button' value='update' onclick='updateQTY()' class='mdl-button mdl-js-button mdl-button--raised mdl-js-ripple-effect'>
</div>
</form>
THANK YOU
Instead of selecting the entire td element, retrieve only what you really need using querySelector (or use jQuery if possible). Find the input element and access the value, it's a lot easier than doing all of that unecessary parsing of the inner html of the entire cell.
function updateQTY() {
//getData from table
//gets table
var lines = "";
var oTable = document.getElementById('items');
//gets rows of table
var rowLength = oTable.rows.length;
var line = "";
//loops through rows, skips firts row/header
for (i = 1; i < rowLength; i++) {
//gets cells of current row
var oCells = oTable.rows.item(i).cells;
var qty = oCells.item(2).querySelector(".mdl-textfield__input").value;
line = line +
'{ "item": "' + oCells.item(0).innerHTML + '",' +
' "discription": "' + oCells.item(1).innerHTML + '",' +
' "qty": "' + qty + '"},'
}
//alert(line);
var jsonData = JSON.parse('[' + line + '{"quickwayto":"dealwith,leftbyloop"}]');
alert("lines: " + JSON.stringify(jsonData));
}
<form action='#'>
<table class='mdl-data-table mdl-js-data-table' id='items'>
<thead>
<tr>
<th>item</th>
<th>discription</th>
<th>QTY</th>
</tr>
</thead>
<tbody>
<tr>
<td class='mdl-data-table__cell--non-numeric'> widget_1 </td>
<td class='mdl-data-table__cell--non-numeric'>it's fun</td>
<td>
<div class='mdl-textfield mdl-js-textfield'><input type='text' name='qty1' id='value1' value='5' class='mdl-textfield__input'></div>
</td>
</tr>
<tr>
<td class='mdl-data-table__cell--non-numeric'> widget_2 </td>
<td class='mdl-data-table__cell--non-numeric'>it's super fun</td>
<td>
<div class='mdl-textfield mdl-js-textfield'><input type='text' name='qty2' id='value2' value='5' class='mdl-textfield__input'></div>
</td>
</tr>
</tbody>
</table>
<div>
<input type='button' value='update' onclick='updateQTY()' class='mdl-button mdl-js-button mdl-button--raised mdl-js-ripple-effect'>
</div>
</form>
You need to use document.getElementById('value2').value instead of .innerHTML.indexOf('value=')
You're making yourself a lot of work here. You have a table. All you need to do is convert that to JSON. I would suggest you look at the library below that does that in around one line of native java-script.
http://www.developerdan.com/table-to-json/

How to get checked checkbox table value in jquery

In my table I have 2 rows please see my screen shot,suppose I click first check box means I want to take that id ** and **to_area value in jquery how can do this,I tried but I can not get please help some one
$(document).ready(function() {
$('#chemist_allotment_btn').click(function() {
if ($('#chemist_allotment_form').valid()) {
$.ajax({
url: 'update_chemist_bulk_transfer.php',
type: 'POST',
data: $('form#chemist_allotment_form').serialize(),
success: function(data) {
var res = jQuery.parseJSON(data); // convert the json
console.log(res);
if (res['status'] == 1) {
var htmlString = '';
$.each(res['data'], function(key, value) {
htmlString += '<tr>';
htmlString += ' <td class="sorting_1"><div class="checkbox-custom checkbox-success"><input type="checkbox" id="checkboxExample3" name="getchemist" class="getchemist" value="' + value.id + '"><label for="checkboxExample3"></label></div></td>';
htmlString += '<td>' + value.id + '</td>';
htmlString += '<td>' + value.name + '</td>';
htmlString += '<td>' + value.area + '</td>';
htmlString += '<td>' + value.to_area + '</td>';
htmlString += '<td>' + value.address + '</td>';
htmlString += '</tr>';
});
$('#SampleDT tbody').empty().append(htmlString);
$('#get_to_area').click(function() {
var id = $('input[name=getchemist]:checked').val();
if ($(".getchemist").prop('checked') == true) {
alert(id);
alert(value.to_area);
} else {
alert('Please Check');
}
});
} else {
$('#SampleDT tbody').empty().append('No Datas Found');
}
},
});
return false;
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="well white">
<table id="SampleDT" class="datatable table table-hover table-striped table-bordered tc-table">
<thead>
<tr>
<th>Select</th>
<th>Id</th>
<th>Doctor Name</th>
<th>From Area</th>
<th>To Area</th>
<th>Address</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
<center>
<div class="form-group">
<button type="button" class="btn btn-primary" style="text-align:left;" id="get_to_area">Transfer Area</button>
</div>
</center>
</div>
Firstly, add classes to each <td>, like <td class='id'>[Your id]</td>
Similarly for all the elements doctor-name, to-area, etc and a class to each <tr> like row-select
Somewhat like this:
<tr class="row-select">
<td class="select">...</td>
<td class="id">...</td>
<td class="to-area">...</td>
.
.
.
</tr>
Use jQuery like this:
$('.row-select').click(function(){
var id,toArea,checkBox;
id = $(this).find('.id').html(); //get the ID field
toArea = $(this).find('.to-area').html(); //get the to-area field
checkBox = $(this).find('.select > input');
checkbox.prop('checked',!checkbox.prop('checked'));
})
This code will get you he value no mater where you click on the row, and also invert the selection on the checkbox
To get the values of rows selected when the form is submitted run a loop like this
$('.row-select input:checked').each(function(){
var id,toArea,checkBox;
id = $(this).closest('tr').find('.id').html(); //get the ID field
toArea = $(this).closest('tr').find('.to-area').html(); //get the to-area field
})
EDIT
All together:
$(document).ready(function() {
$('#btnSubmit').click(function() {
$('.row-select input:checked').each(function() {
var id, name;
id = $(this).closest('tr').find('.id').html();
name = $(this).closest('tr').find('.name').html();
alert('ID: ' + id + " | Name: " + name);
})
})
$('#btnSelectAll').click(function() {
$('.row-select input').each(function() {
$(this).prop('checked', true);
})
})
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table border=1>
<tr class="row-select">
<td class="check">
<input type="checkbox" />
</td>
<td class="id">12</td>
<td class="name">Jones</td>
</tr>
<tr class="row-select">
<td class="check">
<input type="checkbox" />
</td>
<td class="id">10</td>
<td class="name">Joseph</td>
</tr>
</table>
<button id="btnSelectAll">Select all</button>
<button id="btnSubmit">Get Value</button>
Process step-by-step:
Give the td you need some classes (from-a & to-a);
Initialize an empty array all (we'll store the data inside it later on);
Create a function that is triggered by the checkbox change
Inside the function you need to know which checkbox has changed, what's the state of it, what tr does it belong to and at the end what are the TO AREA and FROM AREA values.
If the state = checked we will add the values to the all (our small data storage);
If the state = not-checked we will remove the value from the all array;
Finally when we are done with selecting and deselecting rows by pressing the button we can get the values of the selected rows.
var all = [];
$('input[type="checkbox"]').change(function(){
var checkbox = $(this);
var state = checkbox.prop('checked');
var tr = checkbox.parents('tr');
var from = tr.children('.from-a').text();
var to = tr.children('.to-a').text();
if(state){
all.push(from + ' -> ' + to);
}else{
var index = all.indexOf(from + ' -> ' + to);
all.splice(index, 1);
}
})
$('#get_to_area').click(function(){
alert(all);
});
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<div class="well white">
<table id="SampleDT" class="datatable table table-hover table-striped table-bordered tc-table">
<thead>
<tr>
<th>Select</th>
<th>Id</th>
<th>Doctor Name</th>
<th>From Area</th>
<th>To Area</th>
<th>Address</th>
</tr>
</thead>
<tbody>
<tr id="1">
<td><input type="checkbox"></td>
<td>1</td>
<td>Nick</td>
<td class="from-a">Kosur</td>
<td class="to-a">Nath Pari</td>
<td>Address</td>
</tr>
<tr id="2">
<td><input type="checkbox"></td>
<td>2</td>
<td>John</td>
<td class="from-a">Rusok</td>
<td class="to-a">iraP htaN</td>
<td>sserddA</td>
</tr>
</tbody>
</table>
<center>
<div class="form-group">
<button style="text-align:left;" id="get_to_area">Transfer Area</button>
</div>
</center>
</div>
<script src="https://code.jquery.com/jquery-3.1.0.js"></script>
</body>
</html>
This is just the basic concept, you can modify it to suit your needs, I'll be happy to help you if you get stuck.
You can also use this fiddle:
In JS:
$('#get_to_area').click(function () {
var id = $('input[name=getchemist]:checked').val();
if ($('input[name=getchemist]').is(':checked')) {
var ID = $('input[name=getchemist]').parent().parent().siblings('td.chkid').html();
var TO_Area = $('input[name=getchemist]').parent().parent().siblings('td.toarea').html();
}
else {
alert('Please Check');
}
});
In Html:
if (res['status'] == 1) {
var htmlString = '';
$.each(res['data'], function (key, value) {
htmlString += '<tr>';
htmlString += ' <td class="sorting_1"><div class="checkbox-custom checkbox-success"><input type="checkbox" id="checkboxExample3" name="getchemist" class="getchemist" value="' + value.id + '"><label for="checkboxExample3"></label></div></td>';
htmlString += '<td class="chkid">' + value.id + '</td>';
htmlString += '<td>' + value.name + '</td>';
htmlString += '<td>' + value.area + '</td>';
htmlString += '<td class="toarea">' + value.to_area + '</td>';
htmlString += '<td>' + value.address + '</td>';
htmlString += '</tr>';
});
I'm guessing you need values of each td whose checbox are checked. This piece of code should get you started.
As you can see, Code loops through each checkbox which is checked, gets contents inside its corresponding td.
var Result = new Array();
$('.checkbox-custom input[type="checkbox"]:checked').each(function(){
var _this = $(this).closest('tr').find('td');
var id= $(_this).eq(0);
var name = $(_this).eq(1);
................... //Similar way for the others
Result.Push(id,name,....)
});

How to pass values from javascript to html?

I am trying to generate multiplication tables in JavaScript and pass the values to the rows of a table in html. I want an output like the image shown. Can anyone help me with this. I'm new to Javascript and am trying to figure out some of the basics. Thanks.
<html>
<head>
<title>Multiplication Table Generator</title>
<script language="javascript" type="text/javascript">
function generateTable()
{
var myVar = prompt("A number?", "");
var myVar = multTables.number.value;
var myString = "";
for (i=1; i<=myVar; i++) {
myString += i+ " x " +myVar+ " = " +(i*myVar)+ "\n";
}
}
</script>
</head>
<body>
<h1>Times Tables</h1>
<form name="multTables">
Enter a number<input type=text name="number">
<input type=button name="button1" value="Show Table" onclick="generateTable()">
<table border=1>
<tr><th>times tables</th></tr>
<tr><td>
<!-- 1X7, 2X7...etc-->
</td>
<td>
<!-- 7, 14, 21...etc-->
</td>
</tr>
</table>
</form>
</body>
</html>
I don't understand why you are using html form and js prompt at the same time.
Ok, you can use this :
<html>
<head>
<title>Multiplication Table Generator</title>
<script language="javascript" type="text/javascript">
function generateTable()
{
//var myVar = prompt("A number?", "");
var myVar = document.forms.multTables.x.value;
var myString = "<tr><th>"+ myVar + " times tables</th></tr>";
for (i=1; i<=myVar; i++)
{
myString += "<tr><td>";
myString += i+ " x " +myVar+ " = " +(i*myVar)+ "\n";
myString += "</td></tr>";
}
document.getElementById('t').innerHTML = myString;
return false;
}
</script>
</head>
<body>
<h1>Times Tables</h1>
<form name="multTables">
Enter a number<input type="text" name="number" id="x">
<input type="button" name="button1" value="Show Table" onclick="generateTable()">
<table border="1" id="t">
</table>
</form>
</body>
</html>
Okay so I set up a small example here that should give you a nice example of how to do this:
http://jsfiddle.net/MHfyE/
HTML:
<div id="content">
</div>
<button id="button">Do It!</button>
Javascript:
var buttonElt = document.getElementById("button");
buttonElt.onclick = function() {
var elt = document.createElement("div");
for (var i = 0; i < 10; i++) {
var childElt = document.createElement("p");
childElt.innerHTML = i;
elt.appendChild(childElt);
}
var parentElt = document.getElementById("content");
parentElt.appendChild(elt);
}
I feel like this is enough to get you started.
First, you're overwriting myVar right after asking it in the prompt, doesn't make much sense.
var myVar = prompt("Give me my var!");
console.log(myVar);
Then you'll somehow have to generate the HTML, you can do it by using jQuery and appending elements or vanilla JS or just generating the raw HTML string. Or using something like AngularJS's ng-repeat.
Here's a really simple example:
var table = document.createElement("table");
for (var i = 0; i < 10; i += 1) {
var tableRow = document.createElement("tr");
for (var j = 0; j < 10; j += 1) {
var tableCell = document.createElement("td");
tableCell.innerHTML = i * j;
tableRow.appendChild(tableCell);
}
table.appendChild(tableRow);
}
Fiddle:
http://jsfiddle.net/jbNbs/1/
Here is a simple example ....
This way, the table is NOT generated by the JavaScript.
JavaScript fills the cell data.
Enter a number in the box, hit enter
If the entry is not a number, it will reject it (won't do anything)
The JavaScript
function generateTable(n) {
n = parseInt(n); // convert to integer
if (!n) { return; } // end execution if not found
// get all the tr in the table
var tr = document.querySelectorAll('#timesTable tr');
tr[0].children[0].textContent = n + ' Times Table';
for (var i = 1; i <= 9; i++) {
tr[i].children[0].textContent = i + ' x ' + n + ' =';
tr[i].children[1].textContent = i * n;
}
}
The HTML
Enter a number: <input type="text" id="box" onchange="generateTable(this.value);">
<br /><br />
<h1>Times Tables</h1>
<table id="timesTable" border="1">
<tr><th colspan="2">Times Table</th></tr>
<tr><td style="width: 100px;"> </td><td style="width: 50px;"> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
<tr><td> </td><td> </td></tr>
</table>
Good luck
:)

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