i'd like to ask how to do arithmatic using javascript
Here i have some input value
<div class="form-group">
<label for="exampleInputTotalBayar">Total Bayar</label>
<input type="text" class="form-control" id="inputTotalBayar" placeholder="Total Bayar" name="totalBayar" value="{{ $peminjaman->totalBayar }}">
</div>
<div class="form-group">
<label for="exampleInputJumlahBayar">Telah Membayar</label>
<input type="text" class="form-control" id="inputJumlahBayar" onchange="" placeholder="Jumlah Bayar" name="jumlahBayar" value="{{ $peminjaman->jml_bayar }}">
</div>
I have this input too
<div class="form-group">
<label for="exampleInputDenda">Denda</label>
<input type="text" class="form-control" id="exampleInputDenda" placeholder="Denda" name="denda" value="{{ $peminjaman->denda }}">
</div>
And this
<div class="form-group">
<label for="exampleInputBayarKembali">Jumlah Bayar Pengembalian</label>
<input type="text" class="form-control" id="inputBayarKembali" onchange="" placeholder="Bayar Pengembalian" name="bayarPengembalian">
</div>
And using javascript, the answer from arithmatic operation will be shown here
<p>Bayar Pengembalian: <div id="bayar" name="bayar"></div></p>
<p>Sisa: <div id="sisa" name="sisa"></div></p>
For Bayar Pengembalian, it work just fine. But when im trying to calculate Sisa, the answer wont be shown. Here is my javascript
$("#exampleInputDenda").change(function() {
var bayar = parseInt("0");
var totalBayar = parseInt($("#inputTotalBayar").val());
var jumlahBayar = parseInt($("#inputJumlahBayar").val());
var denda = parseInt($("#exampleInputDenda").val());
bayar = bayar + denda + totalBayar - jumlahBayar;
$("#bayar").html(bayar);
});
$("#inputBayarKembali").change(function() {
var sisa = parseInt("0");
var bayar = $("#bayar").val();
sisa = sisa + $("#inputBayarKembali").val()-bayar;
$("#sisa").html(sisa);
});
would you help me with my problem? I'm just in the middle of studying javascript and laravel, so i really need your help... thanks before
You need to parseInt() around the input values:
$("#inputBayarKembali").change(function() {
var sisa = parseInt("0");
var bayar = parseInt($("#bayar").text());
sisa = sisa + parseInt($("#inputBayarKembali").val())-bayar;
$("#sisa").html(sisa);
});
Related
I am using javascript calculation. multiply 2 numbers: number 1 * number 2 = total and how g-total but working only one value display?
I have need number 1 * number 2 = total and show Gtotal so please help and share a valuable idea...
HTML
<input
name="per_hour"
id="per_hour"
class="form-control"
value=""
onblur="perhour()"
placeholder="0"
/>
<input
name="per_hour_x"
id="per_hour_x"
class="form-control"
onblur="perhour()"
value=""
placeholder="0.00"
/>
Total
<input
name="per_hour_total"
id="per_hour_total"
class="form-control"
value=""
placeholder="0.00"
/>
G-Total
<input
type="text"
class="form-control total-fare"
id="total"
disabled
value="<?= $booking->total_fare ?>"
/>
<script>
function perhour() {
var per_hour = document.getElementById("per_hour").value;
var per_hour_x = document.getElementById("per_hour_x").value;
var amts = document.getElementById("total").value;
var totaperhour = Number(per_hour) * Number(per_hour_x);
var totalamt = Number(totaperhour) + Number(amts);
$("#per_hour_total").val(totaperhour).toFixed(2); //working
$("#total").val(totalamt).toFixed(2); //not working
}
</script>
It should be $('#per_hour_total').val(totaperhour.toFixed(2)); and not $('#per_hour_total').val(totaperhour).toFixed(2);
function perhour() {
var per_hour = document.getElementById("per_hour").value;
var per_hour_x = document.getElementById("per_hour_x").value;
var amts = document.getElementById("total").value;
var totaperhour = Number(per_hour) * Number(per_hour_x);
var totalamt = Number(totaperhour) + Number(amts);
$('#per_hour_total').val(totaperhour.toFixed(2));
$('#total').val(totalamt.toFixed(2));
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<div>
total
<input type="text" class="form-control total-fare" disabled id="total" value="">
</div>
<div>
per_hour
<input name="per_hour" id="per_hour" class="form-control" value="" onblur="perhour()" placeholder="0">
</div>
<div>
per_hour_x
<input name="per_hour_x" id="per_hour_x" class="form-control" onblur="perhour()" value="" placeholder="0.00">
</div>
<div>
per_hour_total
<input name="per_hour_total" id="per_hour_total" class="form-control" value="" placeholder="0.00">
</div>
I have two text type inputs. I want to convert them into one textbox(Lowercase with dash) while typing just like below.
<input type="text" name="first">
<input type="text" name="last">
I want combine this two text box into another textbox
Example: Nikhil Patel to nikhil-patel
I am trying to combine below inputs but can't.
function conv(){
var title, author;
title = document.getElementById("title").value;
author = document.getElementById("author").value;
/*converting to LowerCase*/
title = String.toLowerCase(title);
author = String.toLowerCase(author);
var out = title + "-" + author;
document.getElementById("output").value = output;
}
<div class="form-group">
<label>Title :</label>
<input class="form-control" type="text" name="title" id="title" />
</div>
<div class="form-group">
<label>Author :</label>
<input class="form-control" type="text" name="author" id="author" />
</div>
<div class="form-group">
<label>Output :</label>
<input class="form-control" type="text" name="output" id="output"/>
</div>
Output is not printing automatically
Try This if you want like this...
var input = $('[name="first"],[name="last"]'),
input1 = $('[name="first"]'),
input2 = $('[name="last"]'),
input3 = $('[name="final"]');
input.change(function () {
input3.val(input1.val() + ' - ' + input2.val());
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<input type="text" name="first" id="1" value="">
<input type="text" name="last" id="2" value="">
<input type="text" name="final" id="3" value="" readonly>
<HTML>
<HEAD>
<SCRIPT>
function conv(){
var first, second;
first = document.getElementById("first").value;
second = document.getElementById("second").value;
/*converting to LowerCase*/
first = String.toLowerCase(first);
second = String.toLowerCase(second);
var out = first + "-" + second;
document.getElementById("out").value = out;
}
</SCRIPT>
</HEAD>
<BODY>
<input type="text" name = "first" id="first" onkeyup = 'conv()'/>
<input type="text" name = "second" id ="second" onkeyup = 'conv()'/>
<input type="text" name = "out" id="out"/>
</BODY>
</HTML>
this is just a sample with 3 text boxes where
first two boxes will be for input
and third will auto populate using the javascript
I hope it'll help you. All is did was to add extra id's.
i'm having trouble going trough making a calculator (sum only) of 5 inputs fields in html/javascript and i can't manage to find what's wrong in my code
i tried messing around with types such as int instead of var and passing the value into parseInt, i somehow managed to have a result like "11111" where it should be like "5" but alongside that case the result is never printed in the innerHTML even after i added the "if not null" condition
Here is my html
<body>
<h1 class="head-title"></h1>
<div class="input-group">
<label for="design">Design :</label>
<input class="input-text" type="number" id="design">
</div>
<div class="input-group">
<label for="plot">Plot :</label>
<input class="input-text" type="number" id="plot">
</div>
<div class="input-group">
<label for="character">Character :</label>
<input class="input-text" type="number" id="character">
</div>
<div class="input-group">
<label for="enjoyment">Enjoyment :</label>
<input class="input-text" type="number" id="enjoyment">
</div>
<div class="input-group">
<label for="music">Music :</label>
<input class="input-text" type="number" id="music">
</div>
<div class="button-group">
<button class="button-primary" onclick="ratingCompute();">Calculate</button>
</div>
<div class="input-group">
<label for="total">Rating :</label>
<p class="rating-score" id="total"></p>
</div>
</body>
and here is my javascript
function ratingCompute()
{
var designValue = document.getElementById("design").value;
var plotValue = document.getElementById("plot").value;
var charValue = document.getElementById("character").value;
var enjoyValue = document.getElementById("enjoyment").value;
var musicValue = document.getElementById("music").value;
var totalValue = designValue + plotValue + charValue + enjoyValue + musicValue;
if (totalValue != null)
{
document.getElementById("total").innerHTML = totalValue + "/10";
}
else
{
document.getElementById("total").innerHTML = "0/10";
}
}
Any clue?
JavaScript is not a type variable language try using let or const. And here is how you properly parse it. If you did it already then its because of your variable declaration.
let designValue = parseInt(document.getElementById("design").value);
let plotValue = parseInt(document.getElementById("plot").value);
let charValue = parseInt(document.getElementById("character").value);
let enjoyValue = parseInt(document.getElementById("enjoyment").value);
let musicValue = parseInt(document.getElementById("music").value);
In javascript you should use keyword var/let/const instead of int. and you have to convert String type input value to int using parseInt method.
Please check this:
function ratingCompute()
{
var designValue = parseInt(document.getElementById("design").value);
var plotValue = parseInt(document.getElementById("plot").value);
var charValue = parseInt(document.getElementById("character").value);
var enjoyValue = parseInt(document.getElementById("enjoyment").value);
var musicValue = parseInt(document.getElementById("music").value);
var totalValue = designValue + plotValue + charValue + enjoyValue + musicValue;
if (totalValue)
{
document.getElementById("total").innerHTML = totalValue + "/10";
}
else
{
document.getElementById("total").innerHTML = "0/10";
}
}
<body>
<h1 class="head-title"></h1>
<div class="input-group">
<label for="design">Design :</label>
<input class="input-text" type="number" id="design">
</div>
<div class="input-group">
<label for="plot">Plot :</label>
<input class="input-text" type="number" id="plot">
</div>
<div class="input-group">
<label for="character">Character :</label>
<input class="input-text" type="number" id="character">
</div>
<div class="input-group">
<label for="enjoyment">Enjoyment :</label>
<input class="input-text" type="number" id="enjoyment">
</div>
<div class="input-group">
<label for="music">Music :</label>
<input class="input-text" type="number" id="music">
</div>
<div class="button-group">
<button class="button-primary" onclick="ratingCompute()">Calculate</button>
</div>
<div class="input-group">
<label for="total">Rating :</label>
<p class="rating-score" id="total"></p>
</div>
</body>
As mentioned by #Joshua Aclan, JavaScript does not have an "int" variable declaration, only "var". Also you have to cast all of the inputs to int or float, because otherwise you are adding strings and the values of input fields are always strings. Also the output is most likely empty because int designValue... produces an error.
function ratingCompute()
{
var designValue = parseInt(document.getElementById("design").value);
var plotValue = parseInt(document.getElementById("plot").value);
var charValue = parseInt(document.getElementById("character").value);
var enjoyValue = parseInt(document.getElementById("enjoyment").value);
var musicValue = parseInt(document.getElementById("music").value);
var totalValue = designValue + plotValue + charValue + enjoyValue + musicValue;
if (totalValue != null)
{
document.getElementById("total").innerHTML = totalValue + "/10";
}
else
{
document.getElementById("total").innerHTML = "0/10";
}
}
I want to add off option value in my page
For example, you come in my shop page and choose a package, I want to add an option field for the Discount and when you enter a text that is available on s.txt you receive a discount offer.
For example, you enter a StackOverflow code and in s.txt:
stackoverflow--20
Then the price will be reduced by %20 and displayed.
My source code follows.
JavaScript:
$("#payBtn").click(function() {
$("#count").html($("#member").val());
var price = $("#member").val();
price = price * 5;
location.href = 'https://zarinp.al/levicoder/' + price;
});
$("#name").keyup(function() {
$("#payerName").html($("#name").val());
});
$("#channelInput").keyup(function() {
$("#channel").html($("#channelInput").val());
});
$("#discount").keyup(function() {
$("#disdis").html($("#discount").val());
});
$("#member").click(function() {
$("#count").html($("#member").val());
var price = $("#member").val();
price = price * 5;
$("#amount").html(price);
});
Html:
<div class="box shadow_box purchase_cm_box" >
<h4>Order</h4>
<hr>
<input type="text" class="form-control" id="name" placeholder="Your name"><br>
<input type="text" class="form-control" id="channelInput" placeholder="Your Id"><br>
<input type="text" class="form-control" id="discount" placeholder="discount code"><br>
<div class="form-group">
<select class="form-control" id="member">
<option value="9000">9000 Value</option>
<option value="2000">2000 Value</option>
</select>
<br>
</div>
</div>
<div class="col-lg-4 col-md-4 col-sm-4 col-xs-12 pull-left" id="leftmenu">
<div class="box shadow_box purchase_cm_box" >
<h4>Factor</h4>
<hr>
Your Name : <label id="payerName">don't entered</label><br>
Your id : <label id="channel"></label><br>
discount code : <label id="disdis"></label><br>
Pay Count
<label id="amount">7,000</label>
$
<br><br>
<button class="getBtn" id="payBtn">Pay</button><br>
<p id="payStatus"></p>
</div>
</div>
I tried not to officially answer this question because I am unsure what LeVi needs. But as a result of our conversation in the comments, I was asked to provide code.
Here's my best guess of what LeVi is asking:
let inputCode = "stackoverflow";
let savedCode = "stackoverflow--20"; // derived from file s.txt
let splitSavedCode = savedCode.split('--'); // this will return ['stackoverflow', '20']
if( inputCode == splitSavedCode[0] ) {
// edited after further discussion in comments
let discountPercentage = splitSavedCode[1] / 100;
let discountAmount = price * discountPercentage;
$('#discount').val(discountAmount);
}
Can any one help me with this, I'm trying to use this code on a POS to calculate the change to give a customer and it works for the must part.
The problem I'm having is if I an order costs £9.99 and I enter £10, instead of it calculating the change as £0.01 it calculates it as £ 0.009999999999999787
Here is the code that I'm using.
function sum() {
var og_total = document.getElementById('og_cart_total').value;
var og_tendered = document.getElementById('og_cash_tendered').value;
var og_change = (og_tendered - og_total).toFixed(2);
var og_symbol = '£';
if (!isNaN(og_change)) {
document.getElementById('og_change_given').value = og_symbol + og_change;
}
}
<input type="hidden" id="og_cart_total" value="19.99" onkeyup="sum();" />
<div class="control-group">
<label class="control-label" for="og_cash_tendered">Tendered:</label>
<div class="controls">
<input class="cm-autocomplete-off" type="text" name="payment_info[og_cash_tendered]" value="" id="og_cash_tendered" onkeyup="sum();" />
</div>
</div>
<div class="control-group">
<label class="control-label" for="og_change_given">Change:</label>
<div class="controls">
<input type="text" name="payment_info[og_change_given]" id="og_change_given" value="£-19.99" readonly="readonly" />
</div>
</div>
there is this way but it's not as promising as it should. the best way is to use a library for long numbers if it worth the trouble.
function sum() {
var og_total = document.getElementById('txt1').value;
var og_tendered = document.getElementById('txt2').value;
var og_change = (og_tendered - og_total).toFixed(2);
var og_symbol = "£";
if (!isNaN(og_change)) {
document.getElementById('og_change_text').value = og_symbol + og_change;
}
}
<input type="text" id="txt1" value="9.99" readonly="readonly" onkeyup="sum();" />
<input type="text" id="txt2" onkeyup="sum();" />
<input type="text" readonly="readonly" id="og_change_text" />