We Keep Coding

How can I add up my selection lists, radios, and checkboxes to total?

I need some guidance in how to add my selection list to my total. I am still new to javascript so i did what i could but for some reason, i cannot figure out how to add the selection list to my total. the textboxes with 0.00 are there for me to see if the radios, checkboxes and selection are adding up properly.
``
`
function customerInfo(cName){
var dinerName = document.getElementById(cName).value;
document.getElementById('cust_name').innerHTML = dinerName;
}
// format val to n number of decimal places
function formatDecimal(val, n) {
n = n || 2;
var str = "" + Math.round ( parseFloat(val) * Math.pow(10, n) );
while (str.length <= n) {
str = "0" + str;
}
var pt = str.length - n;
return str.slice(0,pt) + "." + str.slice(pt);
}
function getRadioVal(form, name) {
var radios = form.elements[name];
var val;
for (var i=0, len=radios.length; i<len; i++) {
if ( radios[i].checked == true ) {
val = radios[i].value;
break;
}
}
return val;
}
function getToppingsTotal(e) {
var form = this.form;
var val = parseFloat( form.elements['tops_tot'].value );
if ( this.checked == true ) {
val += parseFloat(this.value);
} else {
val -= parseFloat(this.value);
}
form.elements['tops_tot'].value = formatDecimal(val);
updatePizzaTotal(form);
}
function getSizePrice(e) {
this.form.elements['sz_tot'].value = parseFloat( this.value );
updatePizzaTotal(this.form);
}
function getDeliveryPrice(e){
selectElement = document.querySelector('#pick_delivery');
output = selectElement.options[selectElement.selectedIndex].value;
console.log(output);
}
function updatePizzaTotal(form) {
var sz_tot = parseFloat( form.elements['sz_tot'].value );
var tops_tot = parseFloat( form.elements['tops_tot'].value );
form.elements['total'].value = formatDecimal( sz_tot + tops_tot );
}
// removes from global namespace
(function() {
var form = document.getElementById('pizzaForm');
var el = document.getElementById('pizza_toppings');
// input in toppings container element
var tops = el.getElementsByTagName('input');
for (var i=0, len=tops.length; i<len; i++) {
if ( tops[i].type === 'checkbox' ) {
tops[i].onclick = getToppingsTotal;
}
}
var sz = form.elements['size'];
for (var i=0, len=sz.length; i<len; i++) {
sz[i].onclick = getSizePrice;
}
// set sz_tot to value of selected
form.elements['sz_tot'].value = formatDecimal( parseFloat( getRadioVal(form, 'size') ) );
updatePizzaTotal(form);
})(); // end remove from global namespace and invoke
<form name="pizzaOrder" method="post" id="pizzaForm" enctype="text/plain">
<fieldset style="width: 60%;">
<legend>Create Your Pizza</legend>
<h3>Customer's Name:</h3>
<p>
<input type="text" name="client_name" id="client_name" value="First and Last Name" size="30" value="" />
<input type="button" onclick="customerInfo('client_name')" value="Enter"></button>
</p>
<h3>Pick Your Size:</h3>
<p>
<label><input type="radio" name="size" value="8" /> Small</label>
<label><input type="radio" name="size" value="10" /> Medium</label>
<label><input type="radio" name="size" value="12" /> Large</label>
<label><input type="radio" name="size" value="14" checked/> Extra Large</label>
<input type="text" name="sz_tot" value="0.00" />
</p>
<h3>Pick Your Toppings</h3>
<p id="pizza_toppings">
<label><input type="checkbox" name="Pineapple" value="1.50" /> Pineapple</label>
<label><input type="checkbox" name="Onions" value="1.50" /> Onions </label>
<label><input type="checkbox" name="Ham" value="1.50" /> Ham</label>
<label><input type="checkbox" name="Sausage" value="1.50" /> Sausage</label>
<label><input type="checkbox" name="Pepperoni" value="1.50" /> Pepperoni</label>
<input type="text" name="tops_tot" value="0.00" />
</p>
<h3>Delivery Or Pick Up</h3>
<p>
<select class="delivery" id="pick_delivery" size="2">
<option value="0">Pick Up: Free</option>
<option value="2">Delivery: $2</option>
</select>
<input type="button" onclick="getDeliveryPrice()" id="delivery_pick" value="enter" /></button>
</p>
<p>
<label>Total: $ <input type="text" name="total" class="num" value="0.00" readonly="readonly" /></label>
</p>
<p>
<input type="button" value="Confirm" />
<input type="button" value="Cancel">
</p>
</fieldset>
</form>
<div>
<h2>Your Order:</h2>
<p>
<h4>Your Name: <span id="cust_name"> </span></h4>
<h4>Your Pizza Size:</h4>
<h4>Toppings Selected:</h4>
</p>
</div>
</fieldset>
</form>```
On the bottom of the page the results should look similar to this:
Your Name: Pam Love
Pizza Size Selected: Extra Large
Toppings Selected: Bacon, Pineapple, Ham
Total: 20.50
When clicked on confirm order, the onclick button should redirect the page to a new tab that says:
Your order will be ready in 20 minutes.
or if cancelled then the user clicks the cancel button also redirected to a new tab:
Your order is cancelled.

You can just use some css selectors to accomplish most of this.
Here is how you can get your selected size:
document.querySelector('input[type="radio"][name="size"]:checked').value
And here is how you can get the list of toppings:
[...document.querySelectorAll('input[type="checkbox"][name="topping"]:checked')].map((t) => t.value).join(', ')
The remaining things should be pretty easy to find using querySelector or getElementById

coding for last radio button text input

I have a list of 5 radio buttons, with the last radio button to select a manual entry text (an "other" option). I can't seem to get the form to work for all 5 possibilities - either it returns the radio value or the written value (currently only the written value and not any of the preset radio values). Can't get it to work for all of 5 possible returns.
Here's the javascript to either select text or clear it when unselected:
<script type= "text/javascript" >
function HandleRadioOtherBox(grp, txt)
{
var x, len = grp.length;
for (x =0; x<len; ++x)
{
if (grp[x].checked) break;
}
if (x < len && grp[x].value == txt.name)
{
txt.disabled = false;
txt.select();
txt.focus();
}
else
{
txt.value = "";
txt.disabled = true;
}
return true;
}
window.onload = function ()
{
var ele = document.forms[0].elements;
return HandleRadioOtherBox(ele['OPS'], ele['Country']);
}
</script>
And here, the HTML radio button portion:
<tr valign="top">
<td class="style3">Country: </td>
<td class="copy">
<input type="radio" name="OPS" value="United States" checked="checked"
onclick="return HandleRadioOtherBox(OPS, Country)" /> United States
<input type="radio" name="OPS" value="Canada"
onclick="return HandleRadioOtherBox(OPS, Country)" /> Canada
<input type="radio" name="OPS" value="England"
onclick="return HandleRadioOtherBox(OPS, Country)" /> England
<input type="radio" name="OPS" value="Australia"
onclick="return HandleRadioOtherBox(OPS, Country)" /> Australia <br />
<input type="radio" name="OPS" value="Country"
onclick="return HandleRadioOtherBox(OPS, Country)" /> Other Country:
<input type='text' name="Country" id="Country" maxlength='80' />
</td>
</tr>
Have spent many, many hours with not much of a hole made in the cement (yet). :-)
Help!

You can write a single function for your form which checks for two events:
radio button check
text input blur
and then gives an appropriate response based on which radio button registered a check event or whether the text input registered a blur event:
var radioButtons = document.querySelectorAll('input[type="radio"]');
var otherCountryRadio = document.querySelector('.other-country input[type="radio"]');
var otherCountryText = document.querySelector('.other-country input[type="text"]');
function returnValue() {
if (this === otherCountryRadio) {
otherCountryText.focus();
}
else {
if (this.value.match(/\w/)) {
console.log(this.value);
}
}
}
for (var i = 0; i < radioButtons.length; i++) {
radioButtons[i].addEventListener('change', returnValue, false);
}
otherCountryText.addEventListener('blur', returnValue, false);
div {
margin: 12px;
}
.other-country input[type="text"] {
visibility: hidden;
}
.other-country input:checked + input[type="text"] {
visibility: visible;
}
<form>
<div class="top-countries">
<label><input type="radio" name="OPS" value="United States" checked="checked" /> United States</label>
<label><input type="radio" name="OPS" value="Canada" /> Canada</label>
<label><input type="radio" name="OPS" value="England" /> England</label>
<label><input type="radio" name="OPS" value="Australia" /> Australia</label>
</div>
<div class="other-country">
<label>
<input type="radio" name="OPS" value="Other" /> Other Country
<input type="text" name="Country" />
</label>
</div>
</form>

Disable button if all checkboxes are unchecked

I have a list of checkboxes, and I need to disable my submit button if none of them are checked, and enable it as soon as at least one gets checked. I see lots of advice for doing this with just a single checkbox, but I'm hung up on getting it to work with multiple checkboxes. I want to use javascript for this project, even though I know there are a bunch of answers for jquery. Here's what I've got - it works for the first checkbox, but not the second.
HTML:
<input type="checkbox" id="checkme"/> Option1<br>
<input type="checkbox" id="checkme"/> Option2<br>
<input type="checkbox" id="checkme"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
Javascript:
var checker = document.getElementById('checkme');
var sendbtn = document.getElementById('sendNewSms');
// when unchecked or checked, run the function
checker.onchange = function(){
if(this.checked){
sendbtn.disabled = false;
} else {
sendbtn.disabled = true;
}
}

I'd group your inputs in a container and watch that for events using addEventListener. Then loop through the checkboxes, checking their status. Finally set the button to disabled unless our criteria is met.
var checks = document.getElementsByName('checkme');
var checkBoxList = document.getElementById('checkBoxList');
var sendbtn = document.getElementById('sendNewSms');
function allTrue(nodeList) {
for (var i = 0; i < nodeList.length; i++) {
if (nodeList[i].checked === false) return false;
}
return true;
}
checkBoxList.addEventListener('click', function(event) {
sendbtn.disabled = true;
if (allTrue(checks)) sendbtn.disabled = false;
});
<div id="checkBoxList">
<input type="checkbox" name="checkme"/> Option1<br>
<input type="checkbox" name="checkme"/> Option2<br>
<input type="checkbox" name="checkme"/> Option3<br>
</div>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />

html
<input type="checkbox" class="checkme"/> Option1<br>
<input type="checkbox" class="checkme"/> Option2<br>
<input type="checkbox" class="checkme"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
js
var checkerArr = document.getElementsByClassName('checkme');
var sendbtn = document.getElementById('sendNewSms');
// when unchecked or checked, run the function
for (var i = 0; i < checkerArr.length; i++) {
checkerArr[i].onchange = function() {
if(this.checked){
sendbtn.disabled = false;
} else {
sendbtn.disabled = true;
}
}
}

I guess this code will help you
window.onload=function(){
var checkboxes = document.getElementsByClassName('checkbox')
var sendbtn = document.getElementById('sendNewSms');
var length=checkboxes.length;
for(var i=0;i<length;i++){
var box=checkboxes[i];
var isChecked=box.checked;
box.onchange=function(){
sendbtn.disabled=isChecked?true:false;
}
}
// when unchecked or checked, run the function
}
<input type="checkbox" id="check1" class="checkbox"/> Option1<br>
<input type="checkbox" id="check2" class="checkbox"/> Option2<br>
<input type="checkbox" id="check3" class="checkbox"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
Few suggestions
1.Always id should be unique. HTML does not show any error, if you give multiple objects with the same id but when you try to get it by document.getelementbyid it always return the first one,because getelementbyid returns a single element
when there is such requirement, you should consider having a classname or searching through the element name because getelementsbyclassname/tag returns an array
Here in the markup i have added an extra class to query using getelementsbyclassname
To avoid adding extra class, you can also consider doing it by document.querySelectorAll
check the following snippet
window.onload=function(){
var checkboxes = document.querySelectorAll('input[type=checkbox]')
var sendbtn = document.getElementById('sendNewSms');
var length=checkboxes.length;
for(var i=0;i<length;i++){
var box=checkboxes[i];
var isChecked=box.checked;
box.onchange=function(){
sendbtn.disabled=isChecked?true:false;
}
}
// when unchecked or checked, run the function
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<input type="checkbox" id="check1" /> Option1<br>
<input type="checkbox" id="check2" /> Option2<br>
<input type="checkbox" id="check3" /> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
Hope this helps

Something like this would do. I'm sure you can do it with less code, but I am still a JavaScript beginner. :)
HTML
<input type="checkbox" class="checkme" data-id="checkMe1"/> Option1<br>
<input type="checkbox" class="checkme" data-id="checkMe2"/> Option2<br>
<input type="checkbox" class="checkme" data-id="checkMe3"/> Option3<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="disabled" id="sendNewSms" value=" Send " />
JavaScript
//keep the checkbox states, to reduce access to the DOM
var buttonStatus = {
checkMe1: false,
checkMe2: false,
checkMe1: false
};
//get the handles to the elements
var sendbtn = document.getElementById('sendNewSms');
var checkBoxes = document.querySelectorAll('.checkme');
//add event listeners
for(var i = 0; i < checkBoxes.length; i++) {
checkBoxes[i].addEventListener('change', function() {
buttonStatus[this.getAttribute('data-id')] = this.checked;
updateSendButton();
});
}
//check if the button needs to be enabled or disabled,
//depending on the state of other checkboxes
function updateSendButton() {
//check through all the keys in the buttonStatus object
for (var key in buttonStatus) {
if (buttonStatus.hasOwnProperty(key)) {
if (buttonStatus[key] === true) {
//if at least one of the checkboxes are checked
//enable the sendbtn
sendbtn.disabled = false;
return;
}
}
}
//disable the sendbtn otherwise
sendbtn.disabled = true;
}

var check_opt = document.getElementsByClassName('checkit');
console.log(check_opt);
var btn = document.getElementById('sendNewSms');
function detect() {
btn.disabled = true;
for (var index = 0; index < check_opt.length; ++index) {
console.log(index);
if (check_opt[index].checked == true) {
console.log(btn);
btn.disabled = false;
}
}
}
window.onload = function() {
for (var i = 0; i < check_opt.length; i++) {
check_opt[i].addEventListener('click', detect)
}
// when unchecked or checked, run the function
}
<input type="checkbox" id="check1" class="checkit" />Option1
<br>
<input type="checkbox" id="check2" class="checkit" />Option2
<br>
<input type="checkbox" id="check3" class="checkit" />Option3
<br>
<input type="submit" name="sendNewSms" class="inputButton" disabled="true" id="sendNewSms" value=" Send " />

How to separate my event handling from HTML code

My code is working fine but is there a way to do this without having my event (onclick) in the HTML form. How can I use an eventlistener on this?
Here is the HTML:
<strong>Select Your fees Options</strong></label><br/>
<input type="checkbox" name="fee" id="exc" value="12000.00" onclick = "updateFee()" required><label>PTA and Excursion and Magazine Fee N12,000.00</label><br>
<input type="checkbox" name="fee" id="fol" value="3000.00" onclick = "updateFee()" ><label>Folder Fee <b>(optional)</b> N3,000.00</label><br>
<input type="checkbox" name="fee" id="ext" value="15000.00" onclick = "updateFee()" ><label>Extra Lesson <b>(optional)</b> N15,000.00</label><br>
<input type="checkbox" name="fee" id="clu" value="15000.00" onclick = "updateFee()"><label>Club <b>(optional)</b> N15,000.00</label><br>
<!--total fee is here-->
<p><b>Total Fee:
<input name="amt" id="amt" class="form-control number" type="text" /> <br>
Here is the JavaScript:
<script>
function updateFee(){
var totFee = 0;
var fee=document.getElementsByName("fee");
for (i = 0; i < fee.length; i++)
{
if (fee[i].checked == true)
{
totFee += parseInt(fee[i].value, 10);
}
}
amount = totFee ;
document.getElementById("amt").value = amount;
}
Thanks!

Use javascript/jQuery
In your case it would be
<strong>Select Your fees Options</strong></label><br/>
<input type="checkbox" name="fee" id="exc" value="12000.00" required><label>PTA and Excursion and Magazine Fee N12,000.00</label><br>
<input type="checkbox" name="fee" id="fol" value="3000.00"><label>Folder Fee <b>(optional)</b> N3,000.00</label><br>
<input type="checkbox" name="fee" id="ext" value="15000.00"><label>Extra Lesson <b>(optional)</b> N15,000.00</label><br>
<input type="checkbox" name="fee" id="clu" value="15000.00"><label>Club <b>(optional)</b> N15,000.00</label><br>
<!--total fee is here-->
<p><b>Total Fee:
<input name="amt" id="amt" class="form-control number" type="text" /> <br>
And then, your script:
With jQuery
$(document).ready(function() {
$('input[name=fee]').on('click', function() {
var fee = 0;
$('input[name=fee]:checked').each(function() {
fee+=parseFloat($(this).val());
});
$('#amt').val(fee);
});
});
Or, without jQuery (using your updateFee function:
// run this script after page finish loading
window.onload = function() {
// get all the checkboxes you want to listen to
var cbs = document.getElementsByName('fee');
// attach click event for each one
for(var i=0; i<cbs.length; i++) {
cbs[i].onclick=updateFee;
}
};

Radio Button Javascript

I have radiobuttons like below:
Apple
<input type="radio" id="one" name="apple" data-price="10" value="light"/> Light
<input type="radio" id="two" name="apple" data-price="20" value="dark" /> Dark
<input type="text" id="appleqty" name="appleqty" value="" />
Mango
<input type="radio" id="three" name="Mango" data-price="30" value="light"/> Light
<input type="radio" id="one" name="Mango" data-price="40" value="dark" /> Dark
<input type="text" id="Mangoqty" name="Mangoqty" value="" />
Pine Apple
<input type="radio" id="four" name="Pineapple" data-price="50" value="light"/> Light
<input type="radio" id="five" name="Pineapple" data-price="60" value="dark" /> Dark
<input type="text" id="Pineappleqty" name="Pineappleqty" value="" />
Grape
<input type="radio" id="six" name="Grape" data-price="70" value="light"/> Light
<input type="radio" id="seven" name="Grape" data-price="80" value="dark" /> Dark
<input type="text" id="Pineappleqty" name="Pineappleqty" value="" />
​
The radiobuttons are separated in a Group as (Apple,Mango,Pineapple,Grape).
I need to add the Price with the Quantity he needs.
Example:
If a user clicked Dark Apple in the radiobutton with 1 Qty the Price should be 20 and if the user changed the clicked Radio to the Light Apple radiobutton then the price should be 10 - 20(Previous Price If Checked) = 10 .
Is this possible using JavaScript?
My code that I have tried:
function upprice(ref)
{
var elname = ref.getAttribute("name");
var qtyname = elname+"qty";
var price = ref.getAttribute("proprice");
var qty = parseInt(document.getElementById(qtyname).value)
var newprice = parseInt(price*qty);
var olprice = parseInt(document.getElementById("orderpagepriceinstant").innerHTML);
var totalprice = parseInt(olprice+newprice);
document.getElementById("orderpagepriceinstant").innerHTML = parseInt(totalprice)
}

Your inputs should be something like:
<input type="radio" name="apple" value="10">Light
<input type="radio" name="apple" value="20">Dark
<input type="text" name="appleqty" value="">
You can put a click listener on the radio buttons and a change listener on the quantity to update the price:
<input type="radio" onclick="updatePrice(this)" ...>
<input type="text" onclick="updatePrice(this)" ...>
and the update function is:
function updatePrice(el) {
var priceEach, quantity, itemValue;
if (el.type == 'radio') {
priceEach = getRBValue(el);
quantity = el.form[el.name + 'qty'].value;
} else if (el.type == 'text') {
quantity = el.value;
priceEach = getRBValue(el.form[el.name.replace(/qty$/,'')]);
}
/*
code here to validate the value of quantity
*/
itemValue = quantity * priceEach;
/*
do something with itemValue
*/
alert(itemValue);
}
// Get the value of a radio button set
function getRBValue(el) {
var buttons;
// See if have been passed a button or button set (NodeList)
if (el.type == 'radio') {
buttons = el.form[el.name];
} else if (typeof el.length == 'number') {
buttons = el;
}
if (buttons) {
for (var i=0, iLen=buttons.length; i<iLen; i++) {
if (buttons[i].checked) {
return buttons[i].value;
}
}
}
}
</script>
The markup, you can also add a click listener to the form to do updates rather than on each radio button. You should also have a reset button so the user can clear the form.
<form ... >
<input type="radio" name="apple" value="10" onclick="updatePrice(this)">Light
<input type="radio" name="apple" value="20" onclick="updatePrice(this)">Dark
<input type="text" name="appleqty" value="" onchange="updatePrice(this)">
<br>
<input type="reset">
</form>

Here's a quick jQuery example: http://jsfiddle.net/FTscC/
(laptop dying, I'll elaborate when I can tomorrow!)